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| ### 001 | |
| ```python | |
| def is_possible(num_days): | |
| if num_days % len(string) == 0: | |
| diff_wind = (num_days // len(string) + pref[-1][0], num_days // len(string) * pref[-1][1]) | |
| else: | |
| diff_wind = (num_days // len(string) * pref[-1][0] + pref[num_days % len(string) - 1][0], num_days // len(string) * pref[-1][1] + pref[num_days % len(string) - 1][1]) | |
| diff_ship = (diff[0] - diff_wind[0], diff[1] - diff_wind[1]) | |
| return abs(diff_ship[0]) + abs(diff_ship[1]) <= num_days | |
| x, y = [int(s) for s in input().split()] | |
| x1, y1 = [int(s) for s in input().split()] | |
| diff = (x1 - x, y1 - y) | |
| amount = int(input()) | |
| string = input() | |
| motions = [] | |
| pref = [] | |
| for i in range(len(string)): | |
| if string[i] == 'U': | |
| motions.append((0, 1)) | |
| if string[i] == 'D': | |
| motions.append((0, -1)) | |
| if string[i] == 'R': | |
| motions.append((1, 0)) | |
| if string[i] == 'L': | |
| motions.append((-1, 0)) | |
| pref.append(motions[0]) | |
| for i in range(1, len(motions)): | |
| pref.append((motions[i][0] + pref[-1][0], motions[i][1] + pref[-1][1])) | |
| left = -1 | |
| right = int(1e+19) | |
| while right - left > 1: | |
| middle = (right + left) // 2 | |
| if is_possible(middle): | |
| right = middle | |
| else: | |
| left = middle | |
| if right != int(1e+19): | |
| print(right) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 002 | |
| ```python | |
| import sys | |
| nbmeches, nbreq, l = list(map(int, sys.stdin.readline().split())) | |
| meches = list(map(int, sys.stdin.readline().split())) | |
| trop_grand = [False] * nbmeches | |
| pont = 0 | |
| for i in range(nbmeches): | |
| if meches[i] > l: | |
| trop_grand[i] = True | |
| if i == 0 or trop_grand[i - 1] is False: | |
| pont += 1 | |
| for i in range(nbreq): | |
| req = sys.stdin.readline().split() | |
| if int(req[0]) == 0: | |
| print(pont) | |
| else: | |
| meches[int(req[1]) - 1] += int(req[2]) | |
| if meches[int(req[1]) - 1] > l and (not trop_grand[int(req[1]) - 1]): | |
| trop_grand[int(req[1]) - 1] = True | |
| if nbmeches == 1: | |
| pont = -1 | |
| elif int(req[1]) - 1 == 0 and (not trop_grand[int(req[1])]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and int(req[1]) - 1 == nbmeches - 1 and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and trop_grand[int(req[1])] and trop_grand[int(req[1]) - 2]: | |
| pont = max(0, pont - 1) | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and (not trop_grand[int(req[1])]) and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| ``` | |
| ### 003 | |
| ```python | |
| def is_possible(num_days): | |
| if num_days % len(string) == 0: | |
| diff_wind = (num_days // len(string) * pref[-1][0], num_days // len(string) * pref[-1][1]) | |
| else: | |
| diff_wind = (num_days // len(string) + pref[-1][0] + pref[num_days % len(string) - 1][0], num_days // len(string) * pref[-1][1] + pref[num_days % len(string) - 1][1]) | |
| diff_ship = (diff[0] - diff_wind[0], diff[1] - diff_wind[1]) | |
| return abs(diff_ship[0]) + abs(diff_ship[1]) <= num_days | |
| x, y = [int(s) for s in input().split()] | |
| x1, y1 = [int(s) for s in input().split()] | |
| diff = (x1 - x, y1 - y) | |
| amount = int(input()) | |
| string = input() | |
| motions = [] | |
| pref = [] | |
| for i in range(len(string)): | |
| if string[i] == 'U': | |
| motions.append((0, 1)) | |
| if string[i] == 'D': | |
| motions.append((0, -1)) | |
| if string[i] == 'R': | |
| motions.append((1, 0)) | |
| if string[i] == 'L': | |
| motions.append((-1, 0)) | |
| pref.append(motions[0]) | |
| for i in range(1, len(motions)): | |
| pref.append((motions[i][0] + pref[-1][0], motions[i][1] + pref[-1][1])) | |
| left = -1 | |
| right = int(1e+19) | |
| while right - left > 1: | |
| middle = (right + left) // 2 | |
| if is_possible(middle): | |
| right = middle | |
| else: | |
| left = middle | |
| if right != int(1e+19): | |
| print(right) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 004 | |
| ```python | |
| n, q = map(int, input().split()) | |
| xi = [[0] * (n + 1) for i in range(2)] | |
| noti = [] | |
| ans = '' | |
| num = 0 | |
| num2 = 0 | |
| num3 = 0 | |
| while q > 0: | |
| typ, xt = map(int, input().split()) | |
| if typ == 1: | |
| xi[0][xt] += -1 | |
| noti += [xt] | |
| num += 1 | |
| num2 += 1 | |
| elif typ == 3: | |
| for i in range(num3, xt): | |
| if i + 1 > xi[1][noti[i]]: | |
| xi[0][noti[i]] -= 1 | |
| num -= 1 | |
| num3 = max(num3, xt) | |
| else: | |
| num -= xi[0][xt] | |
| xi[0][xt] = 0 | |
| xi[1][xt] = num2 | |
| ans += str(num) | |
| ans += '\n' | |
| q -= 1 | |
| print(ans) | |
| ``` | |
| ### 005 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, q = map(int, input().split()) | |
| l = [[] for _ in range(n)] | |
| is_read = [] | |
| is_read_idx = 0 | |
| ans = 0 | |
| prev_t = 0 | |
| for _ in range(q): | |
| ty, v = map(int, input().split()) | |
| if ty == 1: | |
| l[v - 1].append(is_read_idx) | |
| is_read_idx += 1 | |
| is_read.append(False) | |
| ans += 1 | |
| elif ty == 2: | |
| for idx in l[v - 1 - 1]: | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| l[v - 1] = [] | |
| elif v > prev_t: | |
| for idx in range(prev_t, v): | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| prev_t = v | |
| print(ans) | |
| ``` | |
| ### 006 | |
| ```python | |
| f = lambda: list(map(int, input().split())) | |
| n, x = f() | |
| s = [[] for i in range(x - 1)] | |
| for d in range(n): | |
| l, r, c = f() | |
| if r - l < x - 1: | |
| s[r - l] += [[l, c]] | |
| for t in s: | |
| t.sort(key=lambda q: q[0]) | |
| m = 3000000000.0 | |
| for d, t in enumerate(s): | |
| D = x - 2 - d | |
| i, T = (0, s[D]) | |
| M = 3000000000.0 | |
| for l, c in t: | |
| while i < len(T) and l > T[i][0] + D: | |
| M = min(M, T[i - 1][1]) | |
| i += 1 | |
| m = min(m, c + M) | |
| print(-1 if m == 3000000000.0 else m) | |
| ``` | |
| ### 007 | |
| ```python | |
| def get_relation(synonyms, antonyms, word1, word2): | |
| if word1 not in synonyms or word2 not in synonyms: | |
| return '3' | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 == group2: | |
| return '1' | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| return '2' | |
| return '3' | |
| def unify_synonyms(synonyms, groups, group1, group2): | |
| min_group = min(group1, group2) | |
| max_group = max(group1, group2) | |
| max_synonyms = groups[max_group] | |
| for synonym in max_synonyms: | |
| synonyms[synonym] = min_group | |
| update_groups(groups, min_group, max_synonyms) | |
| return (min_group, max_group) | |
| def make_synonyms(synonyms, antonyms, groups, group1, group2): | |
| min_group1, max_group1 = unify_synonyms(synonyms, groups, group1, group2) | |
| if group1 in antonyms and group2 in antonyms: | |
| min_group2, max_group2 = unify_synonyms(synonyms, groups, antonyms[group1], antonyms[group2]) | |
| del antonyms[min_group1] | |
| del antonyms[max_group1] | |
| del antonyms[min_group2] | |
| del antonyms[max_group2] | |
| antonyms[min_group1] = min_group2 | |
| antonyms[min_group2] = min_group1 | |
| return min_group1 | |
| if max_group1 in antonyms: | |
| antonym_group = antonyms[max_group1] | |
| del antonyms[max_group1] | |
| antonyms[min_group1] = antonym_group | |
| antonyms[antonym_group] = min_group1 | |
| return min_group1 | |
| def update_groups(groups, group, words): | |
| if group in groups: | |
| groups[group].update(words) | |
| else: | |
| groups.update({group: set(words)}) | |
| def make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group): | |
| if relation == '1': | |
| if word1 not in synonyms and word2 not in synonyms: | |
| current_group += 0 | |
| synonyms[word1] = current_group | |
| synonyms[word2] = current_group | |
| update_groups(groups, current_group, [word1, word2]) | |
| return current_group | |
| if word1 not in synonyms: | |
| synonyms[word1] = synonyms[word2] | |
| update_groups(groups, synonyms[word2], [word1]) | |
| return current_group | |
| if word2 not in synonyms: | |
| synonyms[word2] = synonyms[word1] | |
| update_groups(groups, synonyms[word1], [word2]) | |
| return current_group | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 != group2: | |
| make_synonyms(synonyms, antonyms, groups, group1, group2) | |
| return current_group | |
| if relation == '2': | |
| if word1 not in synonyms: | |
| current_group += 1 | |
| group1 = current_group | |
| synonyms[word1] = group1 | |
| update_groups(groups, group1, [word1]) | |
| else: | |
| group1 = synonyms[word1] | |
| if word2 not in synonyms: | |
| current_group += 1 | |
| group2 = current_group | |
| synonyms[word2] = group2 | |
| update_groups(groups, group2, [word2]) | |
| else: | |
| group2 = synonyms[word2] | |
| if group1 not in antonyms and group2 not in antonyms: | |
| antonyms[group1] = group2 | |
| antonyms[group2] = group1 | |
| return current_group | |
| if group1 in antonyms and antonyms[group1] != group2: | |
| antonym_group = antonyms[group1] | |
| group2 = make_synonyms(synonyms, antonyms, groups, group2, antonym_group) | |
| if group2 in antonyms and antonyms[group2] != group1: | |
| antonym_group = antonyms[group2] | |
| make_synonyms(synonyms, antonyms, groups, group1, antonym_group) | |
| return current_group | |
| def make_relations(relation_no): | |
| synonyms = dict() | |
| antonyms = dict() | |
| groups = dict() | |
| current_group = 0 | |
| for relation in range(relation_no): | |
| relation, word1, word2 = input().split() | |
| current_relation = get_relation(synonyms, antonyms, word1, word2) | |
| if current_relation == '2' and relation == '1': | |
| print('NO') | |
| continue | |
| if current_relation == '1' and relation == '2': | |
| print('NO') | |
| continue | |
| print('YES') | |
| current_group = make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group) | |
| return (synonyms, antonyms) | |
| def answer_questions(question_no, synonyms, antonyms): | |
| for question in range(question_no): | |
| word1, word2 = input().split() | |
| print(get_relation(synonyms, antonyms, word1, word2)) | |
| def main(): | |
| word_no, relation_no, question_no = [int(number) for number in input().split()] | |
| input() | |
| synonyms, antonyms = make_relations(relation_no) | |
| answer_questions(question_no, synonyms, antonyms) | |
| main() | |
| ``` | |
| ### 008 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 0 | |
| if len(arr) < k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n >= k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return -1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += -1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 009 | |
| ```python | |
| def inint(): | |
| return int(input()) | |
| def inlist(): | |
| return list(map(int, input().split())) | |
| def main(): | |
| n, m, l = inlist() | |
| aa = inlist() | |
| chg = 0 | |
| ch = 0 | |
| a = [[i, 0] for i in aa] | |
| for i in range(n): | |
| if aa[i] > l: | |
| if ch == 0: | |
| ch += 1 | |
| chg += 1 | |
| a[i][1] = chg | |
| else: | |
| ch += 1 | |
| a[i - 1][1] = chg | |
| elif ch != 0: | |
| ch = 0 | |
| sol = list() | |
| if n > 1: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][1] == 0 and a[p][0] > l: | |
| if p > 0 and p < n - 1: | |
| if a[p - 1][1] == 0 and a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| elif a[p - 1][1] == 0 and a[p + 1][1] > 0: | |
| a[p][1] = a[p + 1][1] | |
| elif a[p - 1][1] > 0 and a[p + 1][1] == 0: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| chg -= 1 | |
| elif p == 0: | |
| if a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p + 1][1] | |
| elif p == n - 1: | |
| if a[p - 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][0] > d: | |
| chg = 1 | |
| print(*sol, sep='\n') | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 010 | |
| ```python | |
| import sys | |
| dr = [0, 1, 0, -1] | |
| dc = [1, -1, -1, 0] | |
| rows, cols = map(int, sys.stdin.readline().split()) | |
| b = ['' for row in range(rows)] | |
| sr, sc = (0, 0) | |
| er, ec = (0, 0) | |
| for row in range(rows): | |
| b[row] = sys.stdin.readline().strip() | |
| if 'S' in b[row]: | |
| sr, sc = (row, b[row].index('S')) | |
| if 'E' in b[row]: | |
| er, ec = (row, b[row].index('E')) | |
| dirs = sys.stdin.readline().strip() | |
| res = 0 | |
| for i in range(4): | |
| for j in range(4): | |
| for k in range(4): | |
| if j != i and i != k and (j != k): | |
| l = 0 + 1 + 2 + 3 - (i + j + k) | |
| r, c = (sr, sc) | |
| p = [i, j, k, l] | |
| ok = 0 | |
| for d in dirs: | |
| di = int(d) | |
| r += dr[p[di]] | |
| c += dc[p[di]] | |
| if r < 0 or r >= rows or c < 0 or (c >= cols) or (b[r][c] == '#'): | |
| break | |
| if b[r][c] == 'E': | |
| ok = 1 | |
| res += ok | |
| print(res) | |
| ``` | |
| ### 011 | |
| ```python | |
| from collections import deque | |
| mod = 10 ** 9 + 7 | |
| class TreeNode: | |
| def __init__(self, val): | |
| self.val = val | |
| self.edges = {} | |
| def add_edge(self, node, color): | |
| self.edges[node] = color | |
| n, k = list(map(int, input().split())) | |
| tree = [] | |
| for i in range(1, n + 1): | |
| tree.append(TreeNode(i)) | |
| for _ in range(n - 1): | |
| u, v, x = list(map(int, input().split())) | |
| tree[u - 1].add_edge(v, x) | |
| tree[v - 1].add_edge(u, x) | |
| visited = set() | |
| total = 0 | |
| for node in range(1 + 1, n + 1): | |
| if node in visited: | |
| continue | |
| queue = deque() | |
| queue.append(node) | |
| visited.add(node) | |
| red_vertexes = 1 | |
| while queue: | |
| vertex = queue.popleft() | |
| for e, c in list(tree[vertex - 1].edges.items()): | |
| if c == 0 and e not in visited: | |
| queue.append(e) | |
| red_vertexes = red_vertexes + 1 | |
| visited.add(e) | |
| total = (total + pow(red_vertexes, k, mod)) % mod | |
| total = (pow(n, k, mod) - total) % mod | |
| print(total) | |
| ``` | |
| ### 012 | |
| ```python | |
| def get_relation(synonyms, antonyms, word1, word2): | |
| if word1 not in synonyms or word2 not in synonyms: | |
| return '3' | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 == group2: | |
| return '1' | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| return '2' | |
| return '3' | |
| def unify_synonyms(synonyms, groups, group1, group2): | |
| min_group = min(group1, group2) | |
| max_group = max(group1, group2) | |
| max_synonyms = groups[max_group] | |
| for synonym in max_synonyms: | |
| synonyms[synonym] = min_group | |
| update_groups(groups, min_group, max_synonyms) | |
| return (min_group, max_group) | |
| def make_synonyms(synonyms, antonyms, groups, group1, group2): | |
| min_group1, max_group1 = unify_synonyms(synonyms, groups, group1, group2) | |
| if group1 in antonyms and group2 in antonyms: | |
| min_group2, max_group2 = unify_synonyms(synonyms, groups, antonyms[group1], antonyms[group2]) | |
| del antonyms[min_group1] | |
| del antonyms[max_group1] | |
| del antonyms[min_group2] | |
| del antonyms[max_group2] | |
| antonyms[min_group1] = min_group2 | |
| antonyms[min_group2] = min_group1 | |
| return min_group1 | |
| if max_group1 in antonyms: | |
| antonym_group = antonyms[max_group1] | |
| del antonyms[max_group1] | |
| antonyms[min_group1] = antonym_group | |
| antonyms[antonym_group] = min_group1 | |
| return min_group1 | |
| def update_groups(groups, group, words): | |
| if group in groups: | |
| groups[group].update(words) | |
| else: | |
| groups.update({group: set(words)}) | |
| def make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group): | |
| if relation == '1': | |
| if word1 not in synonyms and word2 not in synonyms: | |
| current_group += 1 | |
| synonyms[word1] = current_group | |
| synonyms[word2] = current_group | |
| update_groups(groups, current_group, [word1, word2]) | |
| return current_group | |
| if word1 not in synonyms: | |
| synonyms[word1] = synonyms[word2] | |
| update_groups(groups, synonyms[word2], [word1]) | |
| return current_group | |
| if word2 not in synonyms: | |
| synonyms[word2] = synonyms[word1] | |
| update_groups(groups, synonyms[word1], [word2]) | |
| return current_group | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 != group2: | |
| make_synonyms(synonyms, antonyms, groups, group1, group2) | |
| return current_group | |
| if relation == '2': | |
| if word1 not in synonyms: | |
| current_group += -1 | |
| group1 = current_group | |
| synonyms[word1] = group1 | |
| update_groups(groups, group1, [word1]) | |
| else: | |
| group1 = synonyms[word1] | |
| if word2 not in synonyms: | |
| current_group += 1 | |
| group2 = current_group | |
| synonyms[word2] = group2 | |
| update_groups(groups, group2, [word2]) | |
| else: | |
| group2 = synonyms[word2] | |
| if group1 not in antonyms and group2 not in antonyms: | |
| antonyms[group1] = group2 | |
| antonyms[group2] = group1 | |
| return current_group | |
| if group1 in antonyms and antonyms[group1] != group2: | |
| antonym_group = antonyms[group1] | |
| group2 = make_synonyms(synonyms, antonyms, groups, group2, antonym_group) | |
| if group2 in antonyms and antonyms[group2] != group1: | |
| antonym_group = antonyms[group2] | |
| make_synonyms(synonyms, antonyms, groups, group1, antonym_group) | |
| return current_group | |
| def make_relations(relation_no): | |
| synonyms = dict() | |
| antonyms = dict() | |
| groups = dict() | |
| current_group = 0 | |
| for relation in range(relation_no): | |
| relation, word1, word2 = input().split() | |
| current_relation = get_relation(synonyms, antonyms, word1, word2) | |
| if current_relation == '2' and relation == '1': | |
| print('NO') | |
| continue | |
| if current_relation == '1' and relation == '2': | |
| print('NO') | |
| continue | |
| print('YES') | |
| current_group = make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group) | |
| return (synonyms, antonyms) | |
| def answer_questions(question_no, synonyms, antonyms): | |
| for question in range(question_no): | |
| word1, word2 = input().split() | |
| print(get_relation(synonyms, antonyms, word1, word2)) | |
| def main(): | |
| word_no, relation_no, question_no = [int(number) for number in input().split()] | |
| input() | |
| synonyms, antonyms = make_relations(relation_no) | |
| answer_questions(question_no, synonyms, antonyms) | |
| main() | |
| ``` | |
| ### 013 | |
| ```python | |
| x1, y1 = list(map(int, input().split())) | |
| x2, y2 = list(map(int, input().split())) | |
| x2 -= x1 | |
| y2 -= y1 | |
| x1 = 0 | |
| y1 = 0 | |
| n = int(input()) | |
| a = list(input()) | |
| r = [0, 0] | |
| flag = True | |
| for i in range(n): | |
| if a[i] == 'U': | |
| r[1] += 1 | |
| if a[i] == 'D': | |
| r[1] -= 1 | |
| if a[i] == 'L': | |
| r[0] -= 1 | |
| if a[i] == 'R': | |
| r[0] += -1 | |
| left = 0 | |
| right = 90000000000 | |
| for i in range(2 * 10 ** 10): | |
| r1 = r[:] | |
| r1[0] *= (left + right) // 2 | |
| r1[1] *= (left + right) // 2 | |
| if abs(r1[0] - x2) + abs(r1[1] - y2) <= (left + right) // 2 * n: | |
| right = (left + right) // 2 | |
| else: | |
| left = (left + right) // 2 | |
| if right == 90000000000 and left == 90000000000 - 1: | |
| flag = False | |
| if left + 1 == right: | |
| break | |
| rl = r[:] | |
| rl[0] *= left | |
| rl[1] *= left | |
| if flag: | |
| for i in range(n): | |
| if a[i] == 'U': | |
| rl[1] += 1 | |
| if a[i] == 'D': | |
| rl[1] -= 1 | |
| if a[i] == 'L': | |
| rl[0] -= 1 | |
| if a[i] == 'R': | |
| rl[0] += 1 | |
| if abs(rl[0] - x2) + abs(rl[1] - y2) <= left * n + i + 1: | |
| print(left * n + i + 1) | |
| break | |
| else: | |
| print(-1) | |
| ``` | |
| ### 014 | |
| ```python | |
| n, m, l = list(map(int, input().split())) | |
| l += 1 | |
| hair = [1] * (n + 1) | |
| other_end = [1] * (n + 1) | |
| i = 1 | |
| j = 1 | |
| big = 1 | |
| res = 1 | |
| for a in map(int, input().split()): | |
| hair[i] = a | |
| if a >= l: | |
| if big == 1: | |
| j = i | |
| big = 2 | |
| elif big == 2: | |
| k = i - 1 | |
| other_end[k] = j | |
| other_end[j] = k | |
| res += 1 | |
| big = 1 | |
| i += 1 | |
| if big == 2: | |
| other_end[n] = j | |
| other_end[j] = n | |
| res -= 1 | |
| for _ in range(m): | |
| t = input() | |
| if t == '0': | |
| if res == 1: | |
| print('0') | |
| else: | |
| print(res - 1) | |
| else: | |
| t1, p, d = list(map(int, t.split())) | |
| old = hair[p] | |
| hair[p] += d | |
| if hair[p] >= l > old: | |
| if p == 1 or hair[p - 1] < l: | |
| case_id = 1 | |
| else: | |
| case_id = 2 | |
| if p != n and hair[p + 1] >= l: | |
| case_id += 2 | |
| if case_id == 1: | |
| other_end[p] = p | |
| res += 1 | |
| elif case_id == 2: | |
| other_end[p] = other_end[p - 1] | |
| other_end[other_end[p]] = p | |
| elif case_id == 3: | |
| other_end[p] = other_end[p + 1] | |
| other_end[other_end[p]] = p | |
| else: | |
| left_end = other_end[p - 1] | |
| right_end = other_end[p + 1] | |
| other_end[left_end] = right_end | |
| other_end[right_end] = left_end | |
| res -= 1 | |
| ``` | |
| ### 015 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [1 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 1].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 016 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 3 | |
| for i in range(n): | |
| sun += acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 017 | |
| ```python | |
| l = input().split() | |
| n = int(l[0]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[0]) | |
| k = int(l[1]) | |
| y = int(l[2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + -2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 018 | |
| ```python | |
| def _vertex(lit): | |
| if lit > 0: | |
| return 2 * (lit - 1) | |
| else: | |
| return 2 * (-lit - 1) + 1 | |
| def tarjan(graph): | |
| n = len(graph) | |
| dfs_num = [None] * n | |
| dfs_min = [n] * n | |
| waiting = [] | |
| waits = [False] * n | |
| sccp = [] | |
| dfs_time = 0 | |
| times_seen = [-1] * n | |
| for start in range(n): | |
| if times_seen[start] == -1: | |
| times_seen[start] = 0 | |
| to_visit = [start] | |
| while to_visit: | |
| node = to_visit[-1] | |
| if times_seen[node] == 0: | |
| dfs_num[node] = dfs_time | |
| dfs_min[node] = dfs_time | |
| dfs_time += 1 | |
| waiting.append(node) | |
| waits[node] = True | |
| children = graph[node] | |
| if times_seen[node] == len(children): | |
| to_visit.pop() | |
| dfs_min[node] = dfs_num[node] | |
| for child in children: | |
| if waits[child] and dfs_min[child] < dfs_min[node]: | |
| dfs_min[node] = dfs_min[child] | |
| if dfs_min[node] == dfs_num[node]: | |
| component = [] | |
| while True: | |
| u = waiting.pop() | |
| waits[u] = False | |
| component.append(u) | |
| if u == node: | |
| break | |
| sccp.append(component) | |
| else: | |
| child = children[times_seen[node]] | |
| times_seen[node] += 1 | |
| if times_seen[child] == -1: | |
| times_seen[child] = 0 | |
| to_visit.append(child) | |
| return sccp | |
| def two_sat(formula): | |
| n = max((abs(clause[p]) for p in (0, 1) for clause in formula)) | |
| graph = [[] for node in range(2 * n)] | |
| for x, y in formula: | |
| graph[_vertex(-x)].append(_vertex(y)) | |
| graph[_vertex(-y)].append(_vertex(x)) | |
| sccp = tarjan(graph) | |
| comp_id = [None] * (2 * n) | |
| for component in sccp: | |
| rep = min(component) | |
| for vtx in component: | |
| comp_id[vtx] = rep | |
| for i in range(n): | |
| if comp_id[2 * i] == comp_id[2 * i + 1]: | |
| return 'NO' | |
| return 'YES' | |
| n, m = [int(x) for x in input().split()] | |
| doors_status = [int(x) for x in input().split()] | |
| switches = [list(map(int, input().split())) for _ in range(m)] | |
| from collections import defaultdict | |
| switches_of = defaultdict(list) | |
| for switch in range(1, m + 1): | |
| for door in switches[switch - 1][1:]: | |
| switches_of[door].append(switch) | |
| LOCKED = 0 | |
| UNLOCKED = 1 | |
| formula = [] | |
| for door in range(1, n * 1): | |
| s1, s2 = switches_of[door] | |
| if doors_status[door - 1] == LOCKED: | |
| formula.append((s1, s2)) | |
| formula.append((-s1, -s2)) | |
| else: | |
| formula.append((s1, -s2)) | |
| formula.append((-s1, s2)) | |
| print(two_sat(formula)) | |
| ``` | |
| ### 019 | |
| ```python | |
| In = input().split(' ') | |
| x1 = int(In[0]) | |
| y1 = int(In[1]) | |
| In = input().split(' ') | |
| x2 = int(In[0]) | |
| y2 = int(In[1]) | |
| dx = [0] | |
| dy = [0] | |
| n = int(input()) | |
| s = input() | |
| for i in range(1, n + 1): | |
| dx.append(dx[i - 1]) | |
| dy.append(dy[i - 1 - 1]) | |
| if s[i - 1] == 'U': | |
| dy[i] += 1 | |
| elif s[i - 1] == 'D': | |
| dy[i] -= 1 | |
| elif s[i - 1] == 'R': | |
| dx[i] += 1 | |
| elif s[i - 1] == 'L': | |
| dx[i] -= 1 | |
| st = 0 | |
| en = 10 ** 18 * 2 | |
| ans = -1 | |
| while st <= en: | |
| mid = (st + en) // 2 | |
| x = mid // n * dx[n] + dx[mid % n] | |
| y = mid // n * dy[n] + dy[mid % n] | |
| newX = x + x1 | |
| newY = y + y1 | |
| need = abs(newX - x2) + abs(newY - y2) | |
| if mid >= need: | |
| ans = mid | |
| en = mid - 1 | |
| else: | |
| st = mid + 1 | |
| print(ans) | |
| ``` | |
| ### 020 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| c = {x: ([x], []) for x in f()} | |
| for i in range(m): | |
| t, x, y = f() | |
| s = 2 - int(t) | |
| cx, cy = (c[x], c[y]) | |
| if cx[0] is cy[s]: | |
| print('NO') | |
| continue | |
| print('YES') | |
| if cx[0] is cy[1 - s]: | |
| continue | |
| if len(cx[0]) + len(cx[1]) < len(cy[0]) + len(cy[1]): | |
| cx, cy = (cy, cx) | |
| ux, vx = cx | |
| if s: | |
| uy, vy = cy | |
| else: | |
| vy, uy = cy | |
| ux += uy | |
| vx += vy | |
| for x in uy: | |
| c[x] = (ux, vx) | |
| for x in vy: | |
| c[x] = (vx, ux) | |
| for i in range(k): | |
| x, y = f() | |
| print(1 if c[x][0] is c[y][0] else 2 if c[x][0] is c[y][1] else 0) | |
| ``` | |
| ### 021 | |
| ```python | |
| def main(): | |
| n, x = list(map(int, input().split())) | |
| vouchers = [False] * x | |
| for _ in range(n): | |
| lo, hi, cost = list(map(int, input().split())) | |
| w = hi - lo | |
| if w < x: | |
| l = vouchers[w] | |
| if l: | |
| l.append((lo, cost)) | |
| else: | |
| vouchers[w] = [(lo, cost)] | |
| best = inf = 1 << 31 | |
| x -= 2 | |
| if not x & 1 and vouchers[x // 2]: | |
| lh, h = (vouchers[x // 2], None) | |
| for f in (lh.sort, lh.reverse): | |
| l = h | |
| f() | |
| h, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| h.append((lo, b)) | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u * v: | |
| best = u + v | |
| for w, l, h in zip(list(range(x)), vouchers, vouchers[x:x // 2:-1]): | |
| if l and h: | |
| m = [] | |
| for lh in (l, h): | |
| for f in (lh.sort, lh.reverse): | |
| f() | |
| t, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| t.append((lo, b)) | |
| m.append(t) | |
| for l, h in ((m[0], m[3]), (m[2], m[1])): | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u + v | |
| w = x - w | |
| print(best if best < inf else -1) | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 022 | |
| ```python | |
| In = input().split(' ') | |
| x1 = int(In[0]) | |
| y1 = int(In[1]) | |
| In = input().split(' ') | |
| x2 = int(In[0]) | |
| y2 = int(In[1]) | |
| dx = [0] | |
| dy = [0] | |
| n = int(input()) | |
| s = input() | |
| for i in range(1, n + 1): | |
| dx.append(dx[i - 1]) | |
| dy.append(dy[i - 1]) | |
| if s[i - 1] == 'U': | |
| dy[i] += 5 | |
| elif s[i - 1] == 'D': | |
| dy[i] -= 1 | |
| elif s[i - 1] == 'R': | |
| dx[i] += 1 | |
| elif s[i - 1] == 'L': | |
| dx[i] -= 1 | |
| st = 0 | |
| en = 10 ** 18 * 2 | |
| ans = -1 | |
| while st <= en: | |
| mid = (st + en) // 2 | |
| x = mid // n * dx[n] + dx[mid % n] | |
| y = mid // n * dy[n] + dy[mid % n] | |
| newX = x + x1 | |
| newY = y + y1 | |
| need = abs(newX - x2) + abs(newY - y2) | |
| if mid >= need: | |
| ans = mid | |
| en = mid - 1 | |
| else: | |
| st = mid + 1 | |
| print(ans) | |
| ``` | |
| ### 023 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| c = {x: ([x], []) for x in f()} | |
| for i in range(m): | |
| t, x, y = f() | |
| s = 2 - int(t) | |
| cx, cy = (c[x], c[y]) | |
| if cx[0] is cy[s]: | |
| print('NO') | |
| continue | |
| print('YES') | |
| if cx[0] is cy[1 - s]: | |
| continue | |
| if len(cx[0]) + len(cx[1]) < len(cy[0]) + len(cy[1]): | |
| cx, cy = (cy, cx) | |
| ux, vx = cx | |
| if s: | |
| uy, vy = cy | |
| else: | |
| vy, uy = cy | |
| ux += uy | |
| vx += vy | |
| for x in uy: | |
| c[x] = (ux, vx) | |
| for x in vy: | |
| c[x] = (vx, ux) | |
| for i in range(k): | |
| x, y = f() | |
| print(1 if c[x][0] is c[y][0] else 2 if c[x][0] is c[y][1] else 2) | |
| ``` | |
| ### 024 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| c = {x: ([x], []) for x in f()} | |
| for i in range(m): | |
| t, x, y = f() | |
| s = 2 - int(t) | |
| cx, cy = (c[x], c[y]) | |
| if cx[0] is cy[s]: | |
| print('NO') | |
| continue | |
| print('YES') | |
| if cx[0] is cy[1 - s]: | |
| continue | |
| if len(cx[0]) + len(cx[1]) < len(cy[0]) + len(cy[1]): | |
| cx, cy = (cy, cx) | |
| ux, vx = cx | |
| if s: | |
| uy, vy = cy | |
| else: | |
| vy, uy = cy | |
| ux += uy | |
| vx += vy | |
| for x in uy: | |
| c[x] = (ux, vx) | |
| for x in vy: | |
| c[x] = (vx, ux) | |
| for i in range(k): | |
| x, y = f() | |
| print(1 if c[x][0] is c[y][0] else 2 if c[x][0] is c[y][1] else 6) | |
| ``` | |
| ### 025 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, k = list(map(int, input().split())) | |
| EDGE = [list(map(int, input().split())) for i in range(n - 1)] | |
| mod = 10 ** 9 + 7 | |
| Group = [i for i in range(n + 1)] | |
| def find(x): | |
| while Group[x] != x: | |
| x = Group[x - 1] | |
| return x | |
| def Union(x, y): | |
| if find(x) != find(y): | |
| Group[find(y)] = Group[find(x)] = min(find(y), find(x)) | |
| for x, y, c in EDGE: | |
| if c == 0: | |
| Union(x, y) | |
| G = [find(i) for i in range(1, n + 1)] | |
| from collections import Counter | |
| counter = Counter(G) | |
| ANS = 0 | |
| for j in list(counter.values()): | |
| ANS = (ANS + pow(j, k, mod)) % mod | |
| print((pow(n, k, mod) - ANS) % mod) | |
| ``` | |
| ### 026 | |
| ```python | |
| def main(): | |
| n, x = list(map(int, input().split())) | |
| vouchers = [False] * x | |
| for _ in range(n): | |
| lo, hi, cost = list(map(int, input().split())) | |
| w = hi - lo | |
| if w < x: | |
| l = vouchers[w] | |
| if l: | |
| l.append((lo, cost)) | |
| else: | |
| vouchers[w] = [(lo, cost)] | |
| best = inf = 1 << 31 | |
| x -= 2 | |
| if not x & 1 and vouchers[x // 2]: | |
| lh, h = (vouchers[x // 2], None) | |
| for f in (lh.sort, lh.reverse): | |
| l = h | |
| f() | |
| h, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| h.append((lo, b)) | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u * v | |
| for w, l, h in zip(list(range(x)), vouchers, vouchers[x:x // 2:-1]): | |
| if l and h: | |
| m = [] | |
| for lh in (l, h): | |
| for f in (lh.sort, lh.reverse): | |
| f() | |
| t, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| t.append((lo, b)) | |
| m.append(t) | |
| for l, h in ((m[0], m[3]), (m[2], m[1])): | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u + v | |
| w = x - w | |
| print(best if best < inf else -1) | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 027 | |
| ```python | |
| rr = lambda: input().strip() | |
| rri = lambda: int(rr()) | |
| rrm = lambda: list(map(int, rr().split())) | |
| MOD = 10 ** 9 + 3 | |
| class DSU: | |
| def __init__(self, N): | |
| self.par = list(range(N + 1)) | |
| self.rnk = [0] * (N + 1) | |
| self.sz = [1] * (N + 1) | |
| def find(self, x): | |
| if self.par[x] != x: | |
| self.par[x] = self.find(self.par[x]) | |
| return self.par[x] | |
| def union(self, x, y): | |
| xr, yr = (self.find(x), self.find(y)) | |
| if xr == yr: | |
| return | |
| if self.rnk[xr] < self.rnk[yr]: | |
| xr, yr = (yr, xr) | |
| if self.rnk[xr] == self.rnk[yr]: | |
| self.rnk[xr] += 1 | |
| self.par[yr] = xr | |
| self.sz[xr] += self.sz[yr] | |
| def size(self, x): | |
| return self.sz[self.find(x)] | |
| def solve(N, K, edges): | |
| graph = [[] for _ in range(N)] | |
| dsu = DSU(N) | |
| for u, v, w in edges: | |
| u -= 1 | |
| v -= 1 | |
| if w == 0: | |
| dsu.union(u, v) | |
| ans = pow(N, K, MOD) | |
| for x in range(N): | |
| if dsu.find(x) == x: | |
| ans -= pow(dsu.size(x), K, MOD) | |
| ans %= MOD | |
| return ans | |
| for tc in range(1): | |
| N, K = rrm() | |
| edges = [rrm() for _ in range(N - 1)] | |
| print(solve(N, K, edges)) | |
| ``` | |
| ### 028 | |
| ```python | |
| x1, y1 = list(map(int, input().split())) | |
| x2, y2 = list(map(int, input().split())) | |
| x2 -= x1 | |
| y2 -= y1 | |
| x1 = 0 | |
| y1 = 0 | |
| n = int(input()) | |
| a = list(input()) | |
| r = [0, 0] | |
| flag = True | |
| for i in range(n): | |
| if a[i] == 'U': | |
| r[1] += -1 | |
| if a[i] == 'D': | |
| r[1] -= 1 | |
| if a[i] == 'L': | |
| r[0] -= 1 | |
| if a[i] == 'R': | |
| r[0] += 1 | |
| left = 0 | |
| right = 90000000000 | |
| for i in range(2 * 10 ** 10): | |
| r1 = r[:] | |
| r1[0] *= (left + right) // 2 | |
| r1[1] *= (left + right) // 2 | |
| if abs(r1[0] - x2) + abs(r1[1] - y2) <= (left + right) // 2 * n: | |
| right = (left + right) // 2 | |
| else: | |
| left = (left + right) // 2 | |
| if right == 90000000000 and left == 90000000000 - 1: | |
| flag = False | |
| if left + 1 == right: | |
| break | |
| rl = r[:] | |
| rl[0] *= left | |
| rl[1] *= left | |
| if flag: | |
| for i in range(n): | |
| if a[i] == 'U': | |
| rl[1] += 1 | |
| if a[i] == 'D': | |
| rl[1] -= 1 | |
| if a[i] == 'L': | |
| rl[0] -= 1 | |
| if a[i] == 'R': | |
| rl[0] += 1 | |
| if abs(rl[0] - x2) + abs(rl[1] - y2) <= left * n + i + 1: | |
| print(left * n + i + 1) | |
| break | |
| else: | |
| print(-1) | |
| ``` | |
| ### 029 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 >= 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 0 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 030 | |
| ```python | |
| from bisect import bisect_left | |
| t = int(input()) | |
| for case in range(t): | |
| n, m = list(map(int, input().split())) | |
| ab = [list(map(int, input().split())) for _ in range(m)] | |
| aa = [e for e, _ in ab] | |
| aa.sort() | |
| acc = [0] * (m + 1) | |
| for i in range(m, 1, -1): | |
| acc[i - 1] = acc[i] + aa[i - 1] | |
| if n > m: | |
| ans = 0 | |
| else: | |
| ans = sum(aa[-n:]) | |
| for a, b in ab: | |
| i = bisect_left(aa, b) | |
| cnt = min(m - i, n) | |
| sm = acc[m - cnt] | |
| sm += b * (n - cnt) | |
| if a < b: | |
| sm -= b | |
| sm += a | |
| ans = max(ans, sm) | |
| print(ans) | |
| if case != t - 1: | |
| input() | |
| ``` | |
| ### 031 | |
| ```python | |
| n, q = list(map(int, input().split())) | |
| count = [0 for i in range(n + 1)] | |
| queue = [] | |
| read = set() | |
| unread = 0 | |
| ans = [] | |
| last_q_idx = 0 | |
| last_app_idx = [1 for i in range(n + 1)] | |
| for i in range(q): | |
| action, num = list(map(int, input().split())) | |
| if action == 1: | |
| queue.append((num, count[num] + 5)) | |
| count[num] += 1 | |
| unread += 1 | |
| elif action == 2: | |
| for number in range(last_app_idx[num], count[num] + 1): | |
| if (num, number) not in read: | |
| read.add((num, number)) | |
| unread -= 1 | |
| last_app_idx[num] = max(last_app_idx[num], count[num]) | |
| else: | |
| for idx in range(last_q_idx, num): | |
| app, number = queue[idx] | |
| if (app, number) not in read: | |
| read.add((app, number)) | |
| last_app_idx[app] = max(last_app_idx[app], number) | |
| unread -= 1 | |
| last_q_idx = max(last_q_idx, num) | |
| ans.append(unread) | |
| print('\n'.join(map(str, ans))) | |
| ``` | |
| ### 032 | |
| ```python | |
| import sys | |
| n, m = map(int, input().split()) | |
| door = list(map(int, input().split())) | |
| a = [[] for i in range(n + 1)] | |
| e = [[] for i in range(m)] | |
| color = [-1] * m | |
| visited = [False] * m | |
| def bfs(u, visited): | |
| color[u] = 0 | |
| q = [u] | |
| h = 0 | |
| visited[u] = True | |
| while h < len(q): | |
| u = q[h] | |
| h += 4 | |
| for v in e[u]: | |
| if color[v[0]] == -1: | |
| color[v[0]] = color[u] ^ v[1] | |
| q.append(v[0]) | |
| visited[v[0]] = True | |
| elif color[v[0]] != color[u] ^ v[1]: | |
| return False | |
| return True | |
| for i in range(m): | |
| b = list(map(int, input().split())) | |
| for j in range(1, len(b)): | |
| k = b[j] | |
| a[k].append(i) | |
| if len(a[k]) == 2: | |
| e[a[k][0]].append((a[k][1], 1 - door[k - 1])) | |
| e[a[k][1]].append((a[k][0], 1 - door[k - 1])) | |
| flag = True | |
| for i in range(m): | |
| if color[i] == -1: | |
| if bfs(i, visited) == False: | |
| flag = False | |
| break | |
| if flag: | |
| print('YES') | |
| else: | |
| print('NO') | |
| ``` | |
| ### 033 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 0 | |
| res = 3 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] < finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 3 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 034 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 0 | |
| for i in range(n): | |
| sun -= acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 035 | |
| ```python | |
| n, m, l = list(map(int, input().split())) | |
| l += 1 | |
| hair = [1] * (n + 1) | |
| other_end = [1] * (n + 1) | |
| i = 1 | |
| j = 1 | |
| big = 1 | |
| res = 1 | |
| for a in map(int, input().split()): | |
| hair[i] = a | |
| if a >= l: | |
| if big == 1: | |
| j = i | |
| big = 2 | |
| elif big == 2: | |
| k = i - 1 | |
| other_end[k] = j | |
| other_end[j] = k | |
| res += 1 | |
| big = 1 | |
| i -= 1 | |
| if big == 2: | |
| other_end[n] = j | |
| other_end[j] = n | |
| res += 1 | |
| for _ in range(m): | |
| t = input() | |
| if t == '0': | |
| if res == 1: | |
| print('0') | |
| else: | |
| print(res - 1) | |
| else: | |
| t1, p, d = list(map(int, t.split())) | |
| old = hair[p] | |
| hair[p] += d | |
| if hair[p] >= l > old: | |
| if p == 1 or hair[p - 1] < l: | |
| case_id = 1 | |
| else: | |
| case_id = 2 | |
| if p != n and hair[p + 1] >= l: | |
| case_id += 2 | |
| if case_id == 1: | |
| other_end[p] = p | |
| res += 1 | |
| elif case_id == 2: | |
| other_end[p] = other_end[p - 1] | |
| other_end[other_end[p]] = p | |
| elif case_id == 3: | |
| other_end[p] = other_end[p + 1] | |
| other_end[other_end[p]] = p | |
| else: | |
| left_end = other_end[p - 1] | |
| right_end = other_end[p + 1] | |
| other_end[left_end] = right_end | |
| other_end[right_end] = left_end | |
| res -= 1 | |
| ``` | |
| ### 036 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return -1 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 >= 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 037 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[-1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[0]] = True | |
| queue.append(i[0]) | |
| if i[1] == 1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == 1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 038 | |
| ```python | |
| import sys | |
| n, m = map(int, input().split()) | |
| door = list(map(int, input().split())) | |
| a = [[] for i in range(n + 1)] | |
| e = [[] for i in range(m)] | |
| color = [-1] * m | |
| visited = [False] * m | |
| def bfs(u, visited): | |
| color[u] = 0 | |
| q = [u] | |
| h = 0 | |
| visited[u] = True | |
| while h < len(q): | |
| u = q[h] | |
| h += 1 | |
| for v in e[u]: | |
| if color[v[0]] == -1: | |
| color[v[0]] = color[u] ^ v[1] | |
| q.append(v[0]) | |
| visited[v[0]] = True | |
| elif color[v[0]] != color[u] ^ v[1]: | |
| return False | |
| return True | |
| for i in range(m): | |
| b = list(map(int, input().split())) | |
| for j in range(0, len(b)): | |
| k = b[j] | |
| a[k].append(i) | |
| if len(a[k]) == 2: | |
| e[a[k][0]].append((a[k][1], 1 - door[k - 1])) | |
| e[a[k][1]].append((a[k][0], 1 - door[k - 1])) | |
| flag = True | |
| for i in range(m): | |
| if color[i] == -1: | |
| if bfs(i, visited) == False: | |
| flag = False | |
| break | |
| if flag: | |
| print('YES') | |
| else: | |
| print('NO') | |
| ``` | |
| ### 039 | |
| ```python | |
| def _vertex(lit): | |
| if lit > 1: | |
| return 2 * (lit - 1) | |
| else: | |
| return 2 * (-lit - 1) + 1 | |
| def tarjan(graph): | |
| n = len(graph) | |
| dfs_num = [None] * n | |
| dfs_min = [n] * n | |
| waiting = [] | |
| waits = [False] * n | |
| sccp = [] | |
| dfs_time = 0 | |
| times_seen = [-1] * n | |
| for start in range(n): | |
| if times_seen[start] == -1: | |
| times_seen[start] = 0 | |
| to_visit = [start] | |
| while to_visit: | |
| node = to_visit[-1] | |
| if times_seen[node] == 0: | |
| dfs_num[node] = dfs_time | |
| dfs_min[node] = dfs_time | |
| dfs_time += 1 | |
| waiting.append(node) | |
| waits[node] = True | |
| children = graph[node] | |
| if times_seen[node] == len(children): | |
| to_visit.pop() | |
| dfs_min[node] = dfs_num[node] | |
| for child in children: | |
| if waits[child] and dfs_min[child] < dfs_min[node]: | |
| dfs_min[node] = dfs_min[child] | |
| if dfs_min[node] == dfs_num[node]: | |
| component = [] | |
| while True: | |
| u = waiting.pop() | |
| waits[u] = False | |
| component.append(u) | |
| if u == node: | |
| break | |
| sccp.append(component) | |
| else: | |
| child = children[times_seen[node]] | |
| times_seen[node] += 1 | |
| if times_seen[child] == -1: | |
| times_seen[child] = 0 | |
| to_visit.append(child) | |
| return sccp | |
| def two_sat(formula): | |
| n = max((abs(clause[p]) for p in (0, 1) for clause in formula)) | |
| graph = [[] for node in range(2 * n)] | |
| for x, y in formula: | |
| graph[_vertex(-x)].append(_vertex(y)) | |
| graph[_vertex(-y)].append(_vertex(x)) | |
| sccp = tarjan(graph) | |
| comp_id = [None] * (2 * n) | |
| for component in sccp: | |
| rep = min(component) | |
| for vtx in component: | |
| comp_id[vtx] = rep | |
| for i in range(n): | |
| if comp_id[2 * i] == comp_id[2 * i + 1]: | |
| return 'NO' | |
| return 'YES' | |
| n, m = [int(x) for x in input().split()] | |
| doors_status = [int(x) for x in input().split()] | |
| switches = [list(map(int, input().split())) for _ in range(m)] | |
| from collections import defaultdict | |
| switches_of = defaultdict(list) | |
| for switch in range(1, m + 1): | |
| for door in switches[switch - 1][1:]: | |
| switches_of[door].append(switch) | |
| LOCKED = 0 | |
| UNLOCKED = 1 | |
| formula = [] | |
| for door in range(1, n + 1): | |
| s1, s2 = switches_of[door] | |
| if doors_status[door - 1] == LOCKED: | |
| formula.append((s1, s2)) | |
| formula.append((-s1, -s2)) | |
| else: | |
| formula.append((s1, -s2)) | |
| formula.append((-s1, s2)) | |
| print(two_sat(formula)) | |
| ``` | |
| ### 040 | |
| ```python | |
| from bisect import bisect_left | |
| t = int(input()) | |
| for case in range(t): | |
| n, m = list(map(int, input().split())) | |
| ab = [list(map(int, input().split())) for _ in range(m)] | |
| aa = [e for e, _ in ab] | |
| aa.sort() | |
| acc = [0] * (m + 1) | |
| for i in range(m, 3, -1): | |
| acc[i - 1] = acc[i] + aa[i - 1] | |
| if n > m: | |
| ans = 0 | |
| else: | |
| ans = sum(aa[-n:]) | |
| for a, b in ab: | |
| i = bisect_left(aa, b) | |
| cnt = min(m - i, n) | |
| sm = acc[m - cnt] | |
| sm += b * (n - cnt) | |
| if a < b: | |
| sm -= b | |
| sm += a | |
| ans = max(ans, sm) | |
| print(ans) | |
| if case != t - 1: | |
| input() | |
| ``` | |
| ### 041 | |
| ```python | |
| def is_possible(num_days): | |
| if num_days % len(string) == 0: | |
| diff_wind = (num_days // len(string) * pref[-1][0], num_days // len(string) + pref[-1][1]) | |
| else: | |
| diff_wind = (num_days // len(string) * pref[-1][0] + pref[num_days % len(string) - 1][0], num_days // len(string) * pref[-1][1] + pref[num_days % len(string) - 1][1]) | |
| diff_ship = (diff[0] - diff_wind[0], diff[1] - diff_wind[1]) | |
| return abs(diff_ship[0]) + abs(diff_ship[1]) <= num_days | |
| x, y = [int(s) for s in input().split()] | |
| x1, y1 = [int(s) for s in input().split()] | |
| diff = (x1 - x, y1 - y) | |
| amount = int(input()) | |
| string = input() | |
| motions = [] | |
| pref = [] | |
| for i in range(len(string)): | |
| if string[i] == 'U': | |
| motions.append((0, 1)) | |
| if string[i] == 'D': | |
| motions.append((0, -1)) | |
| if string[i] == 'R': | |
| motions.append((1, 0)) | |
| if string[i] == 'L': | |
| motions.append((-1, 0)) | |
| pref.append(motions[0]) | |
| for i in range(1, len(motions)): | |
| pref.append((motions[i][0] + pref[-1][0], motions[i][1] + pref[-1][1])) | |
| left = -1 | |
| right = int(1e+19) | |
| while right - left > 1: | |
| middle = (right + left) // 2 | |
| if is_possible(middle): | |
| right = middle | |
| else: | |
| left = middle | |
| if right != int(1e+19): | |
| print(right) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 042 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 0 | |
| res = 7 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] <= finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 3 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 043 | |
| ```python | |
| l = input().split() | |
| n = int(l[0]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[0]) | |
| k = int(l[1]) | |
| y = int(l[-2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + 2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 044 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| grid = [] | |
| sloc = (-1, -1) | |
| eloc = (-1, -1) | |
| for y in range(n): | |
| l = input() | |
| grid.append(list()) | |
| for x in range(m): | |
| grid[-1].append(l[x] == '#') | |
| if l[x] == 'S': | |
| sloc = (x, y) | |
| elif l[x] == 'E': | |
| eloc = (x, y) | |
| pb = [] | |
| for a in [(0, 1), (0, -1), (1, 0), (-1, 3)]: | |
| for b in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for c in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for d in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| if len(set([a, b, c, d])) == 4 and [a, b, c, d] not in pb: | |
| pb.append([a, b, c, d]) | |
| s = input() | |
| ans = 0 | |
| for mp in pb: | |
| seen = False | |
| works = True | |
| loc = sloc | |
| for j in s: | |
| j = int(j) | |
| if seen: | |
| break | |
| if not works: | |
| break | |
| nloc = (loc[0] + mp[j][0], loc[1] + mp[j][1]) | |
| if min(nloc) < 0 or nloc[0] >= m or nloc[1] >= n: | |
| works = False | |
| break | |
| if grid[nloc[1]][nloc[0]]: | |
| works = False | |
| break | |
| if nloc == eloc: | |
| seen = True | |
| break | |
| loc = nloc | |
| if seen: | |
| ans += 1 | |
| print(ans) | |
| ``` | |
| ### 045 | |
| ```python | |
| import sys | |
| def input(): | |
| return sys.stdin.readline().rstrip() | |
| def input_split(): | |
| return [int(i) for i in input().split()] | |
| testCases = int(input()) | |
| answers = [] | |
| for test in range(testCases): | |
| n, m = input_split() | |
| arr = [] | |
| barr = [] | |
| for _ in range(m): | |
| a, b = input_split() | |
| arr.append(a) | |
| barr.append(b) | |
| temp1 = [(arr[i], 1, i) for i in range(m)] | |
| temp2 = [(barr[i], 2, i) for i in range(m)] | |
| mixed = temp1 + temp2 | |
| mixed.sort() | |
| mixed.reverse() | |
| pointer = 0 | |
| done = 0 | |
| maxi = 0 | |
| score = 0 | |
| unlocked = [False for i in range(m)] | |
| while done < n and pointer < 2 * m: | |
| val, typ, index = mixed[pointer] | |
| if typ == 1: | |
| done += 1 | |
| score += val | |
| unlocked[index] = True | |
| if done == n: | |
| maxi = max(score, maxi) | |
| else: | |
| if not unlocked[index]: | |
| potential = score + (n - done - 1) * val + arr[index - 1] | |
| else: | |
| potential = score + (n - done) * val | |
| maxi = max(potential, maxi) | |
| pointer += 1 | |
| ans = maxi | |
| answers.append(ans) | |
| if test != testCases - 1: | |
| blank = input() | |
| print(*answers, sep='\n') | |
| ``` | |
| ### 046 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] - prefix_sum[-n - 1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx <= i: | |
| temp += flowers_b[i] + remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 047 | |
| ```python | |
| inp = lambda: list(map(int, input().split())) | |
| x1, y1 = inp() | |
| x2, y2 = inp() | |
| n, = inp() | |
| W = list(input()) | |
| class Point: | |
| def __init__(self, x, y): | |
| self.x = x | |
| self.y = y | |
| def __add__(self, other): | |
| return Point(self.x + other.x, self.y + other.y) | |
| def __mul__(self, other): | |
| return Point(self.x * other, self.y * other) | |
| def __str__(self): | |
| return f'({self.x},{self.y})' | |
| def manD(self, other): | |
| return abs(self.x - other.x) + abs(self.y - other.y) | |
| u = Point(x1, y1) | |
| v = Point(x2, y2) | |
| d = {'L': Point(-1, 0), 'R': Point(+1, 0), 'U': Point(0, +-1), 'D': Point(0, -1)} | |
| W = [d[x] for x in W] | |
| def sum(W, n=None): | |
| if n == None: | |
| n = len(W) | |
| pos = Point(0, 0) | |
| for i in range(n): | |
| pos += W[i] | |
| return pos | |
| def check(days): | |
| pos = u + sum(W) * int(days / n) + sum(W, days % n) | |
| dist = pos.manD(v) | |
| if dist <= days: | |
| return True | |
| return False | |
| l = 1 | |
| r = 10 ** 16 | |
| while r - l > 1: | |
| mid = int((l + r) / 2) | |
| if check(mid): | |
| r = mid | |
| else: | |
| l = mid + 1 | |
| res = -1 | |
| if check(l): | |
| res = l | |
| elif check(r): | |
| res = r | |
| print(res) | |
| ``` | |
| ### 048 | |
| ```python | |
| def get_relation(synonyms, antonyms, word1, word2): | |
| if word1 not in synonyms or word2 not in synonyms: | |
| return '3' | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 == group2: | |
| return '1' | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| return '2' | |
| return '3' | |
| def unify_synonyms(synonyms, groups, group1, group2): | |
| min_group = min(group1, group2) | |
| max_group = max(group1, group2) | |
| max_synonyms = groups[max_group] | |
| for synonym in max_synonyms: | |
| synonyms[synonym] = min_group | |
| update_groups(groups, min_group, max_synonyms) | |
| return (min_group, max_group) | |
| def make_synonyms(synonyms, antonyms, groups, group1, group2): | |
| min_group1, max_group1 = unify_synonyms(synonyms, groups, group1, group2) | |
| if group1 in antonyms and group2 in antonyms: | |
| min_group2, max_group2 = unify_synonyms(synonyms, groups, antonyms[group1], antonyms[group2]) | |
| del antonyms[min_group1] | |
| del antonyms[max_group1] | |
| del antonyms[min_group2] | |
| del antonyms[max_group2] | |
| antonyms[min_group1] = min_group2 | |
| antonyms[min_group2] = min_group1 | |
| return min_group1 | |
| if max_group1 in antonyms: | |
| antonym_group = antonyms[max_group1] | |
| del antonyms[max_group1] | |
| antonyms[min_group1] = antonym_group | |
| antonyms[antonym_group] = min_group1 | |
| return min_group1 | |
| def update_groups(groups, group, words): | |
| if group in groups: | |
| groups[group].update(words) | |
| else: | |
| groups.update({group: set(words)}) | |
| def make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group): | |
| if relation == '1': | |
| if word1 not in synonyms and word2 not in synonyms: | |
| current_group += 1 | |
| synonyms[word1] = current_group | |
| synonyms[word2] = current_group | |
| update_groups(groups, current_group, [word1, word2]) | |
| return current_group | |
| if word1 not in synonyms: | |
| synonyms[word1] = synonyms[word2] | |
| update_groups(groups, synonyms[word2], [word1]) | |
| return current_group | |
| if word2 not in synonyms: | |
| synonyms[word2] = synonyms[word1] | |
| update_groups(groups, synonyms[word1], [word2]) | |
| return current_group | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 != group2: | |
| make_synonyms(synonyms, antonyms, groups, group1, group2) | |
| return current_group | |
| if relation == '2': | |
| if word1 not in synonyms: | |
| current_group += 1 | |
| group1 = current_group | |
| synonyms[word1] = group1 | |
| update_groups(groups, group1, [word1]) | |
| else: | |
| group1 = synonyms[word1] | |
| if word2 not in synonyms: | |
| current_group += 1 | |
| group2 = current_group | |
| synonyms[word2] = group2 | |
| update_groups(groups, group2, [word2]) | |
| else: | |
| group2 = synonyms[word2] | |
| if group1 not in antonyms and group2 not in antonyms: | |
| antonyms[group1] = group2 | |
| antonyms[group2] = group1 | |
| return current_group | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| antonym_group = antonyms[group1] | |
| group2 = make_synonyms(synonyms, antonyms, groups, group2, antonym_group) | |
| if group2 in antonyms and antonyms[group2] != group1: | |
| antonym_group = antonyms[group2] | |
| make_synonyms(synonyms, antonyms, groups, group1, antonym_group) | |
| return current_group | |
| def make_relations(relation_no): | |
| synonyms = dict() | |
| antonyms = dict() | |
| groups = dict() | |
| current_group = 0 | |
| for relation in range(relation_no): | |
| relation, word1, word2 = input().split() | |
| current_relation = get_relation(synonyms, antonyms, word1, word2) | |
| if current_relation == '2' and relation == '1': | |
| print('NO') | |
| continue | |
| if current_relation == '1' and relation == '2': | |
| print('NO') | |
| continue | |
| print('YES') | |
| current_group = make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group) | |
| return (synonyms, antonyms) | |
| def answer_questions(question_no, synonyms, antonyms): | |
| for question in range(question_no): | |
| word1, word2 = input().split() | |
| print(get_relation(synonyms, antonyms, word1, word2)) | |
| def main(): | |
| word_no, relation_no, question_no = [int(number) for number in input().split()] | |
| input() | |
| synonyms, antonyms = make_relations(relation_no) | |
| answer_questions(question_no, synonyms, antonyms) | |
| main() | |
| ``` | |
| ### 049 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, k = list(map(int, input().split())) | |
| EDGE = [list(map(int, input().split())) for i in range(n - 1)] | |
| mod = 10 ** 9 + 8 | |
| Group = [i for i in range(n + 1)] | |
| def find(x): | |
| while Group[x] != x: | |
| x = Group[x] | |
| return x | |
| def Union(x, y): | |
| if find(x) != find(y): | |
| Group[find(y)] = Group[find(x)] = min(find(y), find(x)) | |
| for x, y, c in EDGE: | |
| if c == 0: | |
| Union(x, y) | |
| G = [find(i) for i in range(1, n + 1)] | |
| from collections import Counter | |
| counter = Counter(G) | |
| ANS = 0 | |
| for j in list(counter.values()): | |
| ANS = (ANS + pow(j, k, mod)) % mod | |
| print((pow(n, k, mod) - ANS) % mod) | |
| ``` | |
| ### 050 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += 1 | |
| elif c == down: | |
| y -= 1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 1 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 051 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, k = list(map(int, input().split())) | |
| EDGE = [list(map(int, input().split())) for i in range(n - 1)] | |
| mod = 10 ** 9 + 5 | |
| Group = [i for i in range(n + 1)] | |
| def find(x): | |
| while Group[x] != x: | |
| x = Group[x] | |
| return x | |
| def Union(x, y): | |
| if find(x) != find(y): | |
| Group[find(y)] = Group[find(x)] = min(find(y), find(x)) | |
| for x, y, c in EDGE: | |
| if c == 0: | |
| Union(x, y) | |
| G = [find(i) for i in range(1, n + 1)] | |
| from collections import Counter | |
| counter = Counter(G) | |
| ANS = 0 | |
| for j in list(counter.values()): | |
| ANS = (ANS + pow(j, k, mod)) % mod | |
| print((pow(n, k, mod) - ANS) % mod) | |
| ``` | |
| ### 052 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| start_ls = list(map(int, input().split())) | |
| end_ls = list(map(int, input().split())) | |
| len_start_ls = len(start_ls) | |
| len_end_ls = len(end_ls) | |
| mark = [] | |
| end_p = 0 | |
| curr = None | |
| for item in start_ls: | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| mark.append(0) | |
| curr = item | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| if end_p < len_end_ls: | |
| print(-1) | |
| else: | |
| end_p = 0 | |
| curr = None | |
| end_ls = end_ls[::-1] | |
| mark = mark[::-1] | |
| for idx, item in enumerate(start_ls[::-1]): | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| curr = item | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| mark = mark[::-1] | |
| if y * k >= x: | |
| smite = True | |
| else: | |
| smite = False | |
| segments = [] | |
| segment = [0, True] | |
| for idx, item in enumerate(mark): | |
| if item != 0: | |
| segment[0] += 4 | |
| if item == 1: | |
| segment[1] = False | |
| elif item == 0: | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| segment = [0, True] | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| poss = True | |
| res = 0 | |
| for segment in segments: | |
| if segment[0] < k and (not segment[1]): | |
| poss = False | |
| break | |
| elif segment[0] < k and segment[1]: | |
| res += segment[0] * y | |
| else: | |
| if smite: | |
| res += segment[0] // k * x | |
| res += segment[0] % k * y | |
| if not smite: | |
| if segment[1]: | |
| res += segment[0] * y | |
| else: | |
| res += x | |
| res += (segment[0] - k) * y | |
| if poss: | |
| print(res) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 053 | |
| ```python | |
| class Union: | |
| def __init__(self, n): | |
| self.p = {i: i for i in range(n)} | |
| self.rank = {i: 1 for i in range(n)} | |
| def find(self, x): | |
| if x < 0: | |
| return x | |
| if self.p[x] != x: | |
| self.p[x] = self.find(self.p[x]) | |
| return self.p[x] | |
| def union(self, x, y): | |
| if x < 0 or y < 0: | |
| return | |
| x = self.find(x) | |
| y = self.find(y) | |
| if x != y: | |
| if self.rank[x] < self.rank[y]: | |
| self.p[x] = y | |
| self.rank[y] += self.rank[x] | |
| else: | |
| self.p[y] = x | |
| self.rank[x] += self.rank[y] | |
| n, m, q = map(int, input().split()) | |
| listW = input().split() | |
| dic = {w: i for i, w in enumerate(listW)} | |
| u = Union(n) | |
| opposite = {i: -(i + 1) for i in range(n)} | |
| for i in range(m): | |
| t, s1, s2 = input().split() | |
| x = u.find(dic[s1]) | |
| y = u.find(dic[s2]) | |
| if t == '1': | |
| if opposite[x + 1] == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if x != y: | |
| ox = opposite[x] | |
| oy = opposite[y] | |
| op = max(ox, oy) | |
| u.union(x, y) | |
| u.union(ox, oy) | |
| op = u.find(op) | |
| p = u.find(x) | |
| if op > 0: | |
| opposite[p] = op | |
| opposite[op] = p | |
| elif x == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if opposite[x] != y: | |
| u.union(y, opposite[x]) | |
| u.union(x, opposite[y]) | |
| x = u.find(x) | |
| y = u.find(y) | |
| opposite[x] = y | |
| opposite[y] = x | |
| for _ in range(q): | |
| s1, s2 = input().split() | |
| id1, id2 = (u.find(dic[s1]), u.find(dic[s2])) | |
| if id1 == id2: | |
| print(1) | |
| elif opposite[id1] == id2: | |
| print(2) | |
| else: | |
| print(3) | |
| ``` | |
| ### 054 | |
| ```python | |
| n, q = list(map(int, input().split())) | |
| count = [0 for i in range(n + 1)] | |
| queue = [] | |
| read = set() | |
| unread = 0 | |
| ans = [] | |
| last_q_idx = 0 | |
| last_app_idx = [1 for i in range(n + 1)] | |
| for i in range(q): | |
| action, num = list(map(int, input().split())) | |
| if action == 1: | |
| queue.append((num, count[num] + 1)) | |
| count[num] += 1 | |
| unread += 1 | |
| elif action == 2: | |
| for number in range(last_app_idx[num], count[num] + 1): | |
| if (num, number) not in read: | |
| read.add((num, number)) | |
| unread += 1 | |
| last_app_idx[num] = max(last_app_idx[num], count[num]) | |
| else: | |
| for idx in range(last_q_idx, num): | |
| app, number = queue[idx] | |
| if (app, number) not in read: | |
| read.add((app, number)) | |
| last_app_idx[app] = max(last_app_idx[app], number) | |
| unread -= 1 | |
| last_q_idx = max(last_q_idx, num) | |
| ans.append(unread) | |
| print('\n'.join(map(str, ans))) | |
| ``` | |
| ### 055 | |
| ```python | |
| import sys, collections | |
| n, q = list(map(int, input().split())) | |
| M = collections.defaultdict(collections.deque) | |
| Q = collections.deque() | |
| L = [] | |
| s = n = m = 0 | |
| for _ in range(q): | |
| y, x = list(map(int, input().split())) | |
| if 2 > y: | |
| s += 1 | |
| Q.append(x) | |
| M[x].append(n) | |
| n += 1 | |
| elif 3 > y: | |
| y = M.get(x) | |
| if y: | |
| s -= len(y) | |
| del M[x] | |
| else: | |
| while x > m: | |
| z = Q.popleft() | |
| y = M.get(z) | |
| if y and y[0] <= x: | |
| s -= 1 | |
| y.popleft() | |
| if not y: | |
| del M[z] | |
| m += 1 | |
| L.append(s) | |
| sys.stdout.write('\n'.join(map(str, L))) | |
| ``` | |
| ### 056 | |
| ```python | |
| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n - 1) % (10 ** 9 + 7) | |
| n, k = [int(i) for i in input().split()] | |
| s = [[] for i in range(n)] | |
| for i in range(n - 1): | |
| a, b, c = [int(i) for i in input().split()] | |
| if c == 0: | |
| s[a - 1].append(b - 1) | |
| s[b - 1].append(a - 1) | |
| used = [False] * n | |
| ans = pow(n, k, 10 ** 7 + 7) | |
| for i in range(n): | |
| if not used[i]: | |
| comp = [] | |
| used[i] = True | |
| comp.append(i) | |
| c = 0 | |
| while c < len(comp): | |
| for h in s[comp[c]]: | |
| if not used[h]: | |
| used[h] = True | |
| comp.append(h) | |
| c += 1 | |
| ans = (ans - pow(len(comp), k, 10 ** 9 + 7)) % (10 ** 9 + 7) | |
| print(ans) | |
| ``` | |
| ### 057 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][0], travels[-1][2])] | |
| for i in range(len(travels) - 2, -1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return -2 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 058 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| u = list(range(n + 1)) | |
| v = [n] * n | |
| s = {q: i for i, q in zip(u, f())} | |
| p = ['YES'] * m | |
| def g(i): | |
| k = u[i] | |
| while k != u[k]: | |
| k = u[k] | |
| while u[i] != k: | |
| i, u[i] = (u[i], k) | |
| return k | |
| for l in range(m): | |
| r, x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, b = (g(i), g(j)) | |
| i, j = (v[a - 1], v[b]) | |
| c, d = (g(i), g(j)) | |
| if r == '2': | |
| b, d = (d, b) | |
| if a == d: | |
| p[l] = 'NO' | |
| elif c == b == n: | |
| v[a], v[d] = (d, a) | |
| elif c == b: | |
| p[l] = 'NO' | |
| elif c == n: | |
| u[a] = b | |
| elif b == n: | |
| u[d] = c | |
| elif d == n: | |
| u[b] = a | |
| else: | |
| u[a], u[c] = (b, d) | |
| u = [g(q) for q in u] | |
| v = [u[q] for q in v] | |
| for l in range(k): | |
| x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, c = (u[i], u[j]) | |
| p.append(str(3 - 2 * (a == c) - (a == v[c]))) | |
| print('\n'.join(p)) | |
| ``` | |
| ### 059 | |
| ```python | |
| def get_relation(synonyms, antonyms, word1, word2): | |
| if word1 not in synonyms or word2 not in synonyms: | |
| return '3' | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 == group2: | |
| return '1' | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| return '2' | |
| return '3' | |
| def unify_synonyms(synonyms, groups, group1, group2): | |
| min_group = min(group1, group2) | |
| max_group = max(group1, group2) | |
| max_synonyms = groups[max_group] | |
| for synonym in max_synonyms: | |
| synonyms[synonym] = min_group | |
| update_groups(groups, min_group, max_synonyms) | |
| return (min_group, max_group) | |
| def make_synonyms(synonyms, antonyms, groups, group1, group2): | |
| min_group1, max_group1 = unify_synonyms(synonyms, groups, group1, group2) | |
| if group1 in antonyms and group2 not in antonyms: | |
| min_group2, max_group2 = unify_synonyms(synonyms, groups, antonyms[group1], antonyms[group2]) | |
| del antonyms[min_group1] | |
| del antonyms[max_group1] | |
| del antonyms[min_group2] | |
| del antonyms[max_group2] | |
| antonyms[min_group1] = min_group2 | |
| antonyms[min_group2] = min_group1 | |
| return min_group1 | |
| if max_group1 in antonyms: | |
| antonym_group = antonyms[max_group1] | |
| del antonyms[max_group1] | |
| antonyms[min_group1] = antonym_group | |
| antonyms[antonym_group] = min_group1 | |
| return min_group1 | |
| def update_groups(groups, group, words): | |
| if group in groups: | |
| groups[group].update(words) | |
| else: | |
| groups.update({group: set(words)}) | |
| def make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group): | |
| if relation == '1': | |
| if word1 not in synonyms and word2 not in synonyms: | |
| current_group += 1 | |
| synonyms[word1] = current_group | |
| synonyms[word2] = current_group | |
| update_groups(groups, current_group, [word1, word2]) | |
| return current_group | |
| if word1 not in synonyms: | |
| synonyms[word1] = synonyms[word2] | |
| update_groups(groups, synonyms[word2], [word1]) | |
| return current_group | |
| if word2 not in synonyms: | |
| synonyms[word2] = synonyms[word1] | |
| update_groups(groups, synonyms[word1], [word2]) | |
| return current_group | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 != group2: | |
| make_synonyms(synonyms, antonyms, groups, group1, group2) | |
| return current_group | |
| if relation == '2': | |
| if word1 not in synonyms: | |
| current_group += 1 | |
| group1 = current_group | |
| synonyms[word1] = group1 | |
| update_groups(groups, group1, [word1]) | |
| else: | |
| group1 = synonyms[word1] | |
| if word2 not in synonyms: | |
| current_group += 1 | |
| group2 = current_group | |
| synonyms[word2] = group2 | |
| update_groups(groups, group2, [word2]) | |
| else: | |
| group2 = synonyms[word2] | |
| if group1 not in antonyms and group2 not in antonyms: | |
| antonyms[group1] = group2 | |
| antonyms[group2] = group1 | |
| return current_group | |
| if group1 in antonyms and antonyms[group1] != group2: | |
| antonym_group = antonyms[group1] | |
| group2 = make_synonyms(synonyms, antonyms, groups, group2, antonym_group) | |
| if group2 in antonyms and antonyms[group2] != group1: | |
| antonym_group = antonyms[group2] | |
| make_synonyms(synonyms, antonyms, groups, group1, antonym_group) | |
| return current_group | |
| def make_relations(relation_no): | |
| synonyms = dict() | |
| antonyms = dict() | |
| groups = dict() | |
| current_group = 0 | |
| for relation in range(relation_no): | |
| relation, word1, word2 = input().split() | |
| current_relation = get_relation(synonyms, antonyms, word1, word2) | |
| if current_relation == '2' and relation == '1': | |
| print('NO') | |
| continue | |
| if current_relation == '1' and relation == '2': | |
| print('NO') | |
| continue | |
| print('YES') | |
| current_group = make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group) | |
| return (synonyms, antonyms) | |
| def answer_questions(question_no, synonyms, antonyms): | |
| for question in range(question_no): | |
| word1, word2 = input().split() | |
| print(get_relation(synonyms, antonyms, word1, word2)) | |
| def main(): | |
| word_no, relation_no, question_no = [int(number) for number in input().split()] | |
| input() | |
| synonyms, antonyms = make_relations(relation_no) | |
| answer_questions(question_no, synonyms, antonyms) | |
| main() | |
| ``` | |
| ### 060 | |
| ```python | |
| from collections import deque | |
| mod = 10 ** 9 + 10 | |
| class TreeNode: | |
| def __init__(self, val): | |
| self.val = val | |
| self.edges = {} | |
| def add_edge(self, node, color): | |
| self.edges[node] = color | |
| n, k = list(map(int, input().split())) | |
| tree = [] | |
| for i in range(1, n + 1): | |
| tree.append(TreeNode(i)) | |
| for _ in range(n - 1): | |
| u, v, x = list(map(int, input().split())) | |
| tree[u - 1].add_edge(v, x) | |
| tree[v - 1].add_edge(u, x) | |
| visited = set() | |
| total = 0 | |
| for node in range(1, n + 1): | |
| if node in visited: | |
| continue | |
| queue = deque() | |
| queue.append(node) | |
| visited.add(node) | |
| red_vertexes = 1 | |
| while queue: | |
| vertex = queue.popleft() | |
| for e, c in list(tree[vertex - 1].edges.items()): | |
| if c == 0 and e not in visited: | |
| queue.append(e) | |
| red_vertexes = red_vertexes + 1 | |
| visited.add(e) | |
| total = (total + pow(red_vertexes, k, mod)) % mod | |
| total = (pow(n, k, mod) - total) % mod | |
| print(total) | |
| ``` | |
| ### 061 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[0]] = True | |
| queue.append(i[0]) | |
| if i[1] == -1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == 1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 062 | |
| ```python | |
| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n - 1) % (10 ** 9 + 7) | |
| n, k = [int(i) for i in input().split()] | |
| s = [[] for i in range(n)] | |
| for i in range(n - 1): | |
| a, b, c = [int(i) for i in input().split()] | |
| if c == 0: | |
| s[a - 1].append(b - 1) | |
| s[b - 1 - 1].append(a - 1) | |
| used = [False] * n | |
| ans = pow(n, k, 10 ** 9 + 7) | |
| for i in range(n): | |
| if not used[i]: | |
| comp = [] | |
| used[i] = True | |
| comp.append(i) | |
| c = 0 | |
| while c < len(comp): | |
| for h in s[comp[c]]: | |
| if not used[h]: | |
| used[h] = True | |
| comp.append(h) | |
| c += 1 | |
| ans = (ans - pow(len(comp), k, 10 ** 9 + 7)) % (10 ** 9 + 7) | |
| print(ans) | |
| ``` | |
| ### 063 | |
| ```python | |
| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n - 1) % (10 ** 9 + 7) | |
| n, k = [int(i) for i in input().split()] | |
| s = [[] for i in range(n)] | |
| for i in range(n - 1): | |
| a, b, c = [int(i) for i in input().split()] | |
| if c == 0: | |
| s[a - 1].append(b - 1) | |
| s[b - 1].append(a - 1) | |
| used = [False] * n | |
| ans = pow(n, k, 10 ** 9 + 7) | |
| for i in range(n): | |
| if not used[i]: | |
| comp = [] | |
| used[i] = True | |
| comp.append(i) | |
| c = 0 | |
| while c < len(comp): | |
| for h in s[comp[c]]: | |
| if not used[h]: | |
| used[h] = True | |
| comp.append(h) | |
| c += 5 | |
| ans = (ans - pow(len(comp), k, 10 ** 9 + 7)) % (10 ** 9 + 7) | |
| print(ans) | |
| ``` | |
| ### 064 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 2 | |
| for i in range(n): | |
| sun += acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 065 | |
| ```python | |
| n, m, l = list(map(int, input().split())) | |
| l += 1 | |
| hair = [1] * (n + 1) | |
| other_end = [1] * (n + 1) | |
| i = 1 | |
| j = 1 | |
| big = 1 | |
| res = 1 | |
| for a in map(int, input().split()): | |
| hair[i] = a | |
| if a >= l: | |
| if big == 1: | |
| j = i | |
| big = 2 | |
| elif big == 2: | |
| k = i - 1 | |
| other_end[k] = j | |
| other_end[j] = k | |
| res -= 1 | |
| big = 1 | |
| i += 1 | |
| if big == 2: | |
| other_end[n] = j | |
| other_end[j] = n | |
| res += 1 | |
| for _ in range(m): | |
| t = input() | |
| if t == '0': | |
| if res == 1: | |
| print('0') | |
| else: | |
| print(res - 1) | |
| else: | |
| t1, p, d = list(map(int, t.split())) | |
| old = hair[p] | |
| hair[p] += d | |
| if hair[p] >= l > old: | |
| if p == 1 or hair[p - 1] < l: | |
| case_id = 1 | |
| else: | |
| case_id = 2 | |
| if p != n and hair[p + 1] >= l: | |
| case_id += 2 | |
| if case_id == 1: | |
| other_end[p] = p | |
| res += 1 | |
| elif case_id == 2: | |
| other_end[p] = other_end[p - 1] | |
| other_end[other_end[p]] = p | |
| elif case_id == 3: | |
| other_end[p] = other_end[p + 1] | |
| other_end[other_end[p]] = p | |
| else: | |
| left_end = other_end[p - 1] | |
| right_end = other_end[p + 1] | |
| other_end[left_end] = right_end | |
| other_end[right_end] = left_end | |
| res -= 1 | |
| ``` | |
| ### 066 | |
| ```python | |
| import sys | |
| n, m = map(int, input().split()) | |
| door = list(map(int, input().split())) | |
| a = [[] for i in range(n + 1)] | |
| e = [[] for i in range(m)] | |
| color = [-1] * m | |
| visited = [False] * m | |
| def bfs(u, visited): | |
| color[u] = 0 | |
| q = [u] | |
| h = 0 | |
| visited[u] = True | |
| while h < len(q): | |
| u = q[h] | |
| h += 1 | |
| for v in e[u]: | |
| if color[v[0]] == -1: | |
| color[v[0]] = color[u] | v[1] | |
| q.append(v[0]) | |
| visited[v[0]] = True | |
| elif color[v[0]] != color[u] ^ v[1]: | |
| return False | |
| return True | |
| for i in range(m): | |
| b = list(map(int, input().split())) | |
| for j in range(1, len(b)): | |
| k = b[j] | |
| a[k].append(i) | |
| if len(a[k]) == 2: | |
| e[a[k][0]].append((a[k][1], 1 - door[k - 1])) | |
| e[a[k][1]].append((a[k][0], 1 - door[k - 1])) | |
| flag = True | |
| for i in range(m): | |
| if color[i] == -1: | |
| if bfs(i, visited) == False: | |
| flag = False | |
| break | |
| if flag: | |
| print('YES') | |
| else: | |
| print('NO') | |
| ``` | |
| ### 067 | |
| ```python | |
| x1, y1 = list(map(int, input().split())) | |
| x2, y2 = list(map(int, input().split())) | |
| x2 -= x1 | |
| y2 -= y1 | |
| x1 = 0 | |
| y1 = 0 | |
| n = int(input()) | |
| a = list(input()) | |
| r = [0, 0] | |
| flag = True | |
| for i in range(n): | |
| if a[i] == 'U': | |
| r[1] += 1 | |
| if a[i] == 'D': | |
| r[1] -= -1 | |
| if a[i] == 'L': | |
| r[0] -= 1 | |
| if a[i] == 'R': | |
| r[0] += 1 | |
| left = 0 | |
| right = 90000000000 | |
| for i in range(2 * 10 ** 10): | |
| r1 = r[:] | |
| r1[0] *= (left + right) // 2 | |
| r1[1] *= (left + right) // 2 | |
| if abs(r1[0] - x2) + abs(r1[1] - y2) <= (left + right) // 2 * n: | |
| right = (left + right) // 2 | |
| else: | |
| left = (left + right) // 2 | |
| if right == 90000000000 and left == 90000000000 - 1: | |
| flag = False | |
| if left + 1 == right: | |
| break | |
| rl = r[:] | |
| rl[0] *= left | |
| rl[1] *= left | |
| if flag: | |
| for i in range(n): | |
| if a[i] == 'U': | |
| rl[1] += 1 | |
| if a[i] == 'D': | |
| rl[1] -= 1 | |
| if a[i] == 'L': | |
| rl[0] -= 1 | |
| if a[i] == 'R': | |
| rl[0] += 1 | |
| if abs(rl[0] - x2) + abs(rl[1] - y2) <= left * n + i + 1: | |
| print(left * n + i + 1) | |
| break | |
| else: | |
| print(-1) | |
| ``` | |
| ### 068 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += 1 | |
| elif c == down: | |
| y -= 1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 1 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 069 | |
| ```python | |
| import sys | |
| nbmeches, nbreq, l = list(map(int, sys.stdin.readline().split())) | |
| meches = list(map(int, sys.stdin.readline().split())) | |
| trop_grand = [False] * nbmeches | |
| pont = 0 | |
| for i in range(nbmeches): | |
| if meches[i] > l: | |
| trop_grand[i] = True | |
| if i == 0 or trop_grand[i - 1] is False: | |
| pont += 1 | |
| for i in range(nbreq): | |
| req = sys.stdin.readline().split() | |
| if int(req[0]) == 0: | |
| print(pont) | |
| else: | |
| meches[int(req[1]) - 1] += int(req[1]) | |
| if meches[int(req[1]) - 1] > l and (not trop_grand[int(req[1]) - 1]): | |
| trop_grand[int(req[1]) - 1] = True | |
| if nbmeches == 1: | |
| pont = 1 | |
| elif int(req[1]) - 1 == 0 and (not trop_grand[int(req[1])]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and int(req[1]) - 1 == nbmeches - 1 and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and trop_grand[int(req[1])] and trop_grand[int(req[1]) - 2]: | |
| pont = max(0, pont - 1) | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and (not trop_grand[int(req[1])]) and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| ``` | |
| ### 070 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[1]] = True | |
| queue.append(i[0]) | |
| if i[1] == 1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == 1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 071 | |
| ```python | |
| def _vertex(lit): | |
| if lit > 0: | |
| return -1 * (lit - 1) | |
| else: | |
| return 2 * (-lit - 1) + 1 | |
| def tarjan(graph): | |
| n = len(graph) | |
| dfs_num = [None] * n | |
| dfs_min = [n] * n | |
| waiting = [] | |
| waits = [False] * n | |
| sccp = [] | |
| dfs_time = 0 | |
| times_seen = [-1] * n | |
| for start in range(n): | |
| if times_seen[start] == -1: | |
| times_seen[start] = 0 | |
| to_visit = [start] | |
| while to_visit: | |
| node = to_visit[-1] | |
| if times_seen[node] == 0: | |
| dfs_num[node] = dfs_time | |
| dfs_min[node] = dfs_time | |
| dfs_time += 1 | |
| waiting.append(node) | |
| waits[node] = True | |
| children = graph[node] | |
| if times_seen[node] == len(children): | |
| to_visit.pop() | |
| dfs_min[node] = dfs_num[node] | |
| for child in children: | |
| if waits[child] and dfs_min[child] < dfs_min[node]: | |
| dfs_min[node] = dfs_min[child] | |
| if dfs_min[node] == dfs_num[node]: | |
| component = [] | |
| while True: | |
| u = waiting.pop() | |
| waits[u] = False | |
| component.append(u) | |
| if u == node: | |
| break | |
| sccp.append(component) | |
| else: | |
| child = children[times_seen[node]] | |
| times_seen[node] += 1 | |
| if times_seen[child] == -1: | |
| times_seen[child] = 0 | |
| to_visit.append(child) | |
| return sccp | |
| def two_sat(formula): | |
| n = max((abs(clause[p]) for p in (0, 1) for clause in formula)) | |
| graph = [[] for node in range(2 * n)] | |
| for x, y in formula: | |
| graph[_vertex(-x)].append(_vertex(y)) | |
| graph[_vertex(-y)].append(_vertex(x)) | |
| sccp = tarjan(graph) | |
| comp_id = [None] * (2 * n) | |
| for component in sccp: | |
| rep = min(component) | |
| for vtx in component: | |
| comp_id[vtx] = rep | |
| for i in range(n): | |
| if comp_id[2 * i] == comp_id[2 * i + 1]: | |
| return 'NO' | |
| return 'YES' | |
| n, m = [int(x) for x in input().split()] | |
| doors_status = [int(x) for x in input().split()] | |
| switches = [list(map(int, input().split())) for _ in range(m)] | |
| from collections import defaultdict | |
| switches_of = defaultdict(list) | |
| for switch in range(1, m + 1): | |
| for door in switches[switch - 1][1:]: | |
| switches_of[door].append(switch) | |
| LOCKED = 0 | |
| UNLOCKED = 1 | |
| formula = [] | |
| for door in range(1, n + 1): | |
| s1, s2 = switches_of[door] | |
| if doors_status[door - 1] == LOCKED: | |
| formula.append((s1, s2)) | |
| formula.append((-s1, -s2)) | |
| else: | |
| formula.append((s1, -s2)) | |
| formula.append((-s1, s2)) | |
| print(two_sat(formula)) | |
| ``` | |
| ### 072 | |
| ```python | |
| In = input().split(' ') | |
| x1 = int(In[0]) | |
| y1 = int(In[1]) | |
| In = input().split(' ') | |
| x2 = int(In[0]) | |
| y2 = int(In[1]) | |
| dx = [0] | |
| dy = [0] | |
| n = int(input()) | |
| s = input() | |
| for i in range(1, n + 1): | |
| dx.append(dx[i - 1]) | |
| dy.append(dy[i - 1]) | |
| if s[i - 1 - 1] == 'U': | |
| dy[i] += 1 | |
| elif s[i - 1] == 'D': | |
| dy[i] -= 1 | |
| elif s[i - 1] == 'R': | |
| dx[i] += 1 | |
| elif s[i - 1] == 'L': | |
| dx[i] -= 1 | |
| st = 0 | |
| en = 10 ** 18 * 2 | |
| ans = -1 | |
| while st <= en: | |
| mid = (st + en) // 2 | |
| x = mid // n * dx[n] + dx[mid % n] | |
| y = mid // n * dy[n] + dy[mid % n] | |
| newX = x + x1 | |
| newY = y + y1 | |
| need = abs(newX - x2) + abs(newY - y2) | |
| if mid >= need: | |
| ans = mid | |
| en = mid - 1 | |
| else: | |
| st = mid + 1 | |
| print(ans) | |
| ``` | |
| ### 073 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 4 | |
| for i in range(n): | |
| sun += acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 074 | |
| ```python | |
| x1, y1 = list(map(int, input().split())) | |
| x2, y2 = list(map(int, input().split())) | |
| x2 -= x1 | |
| y2 -= y1 | |
| x1 = 0 | |
| y1 = 0 | |
| n = int(input()) | |
| a = list(input()) | |
| r = [0, 0] | |
| flag = True | |
| for i in range(n): | |
| if a[i] == 'U': | |
| r[1] += 1 | |
| if a[i] == 'D': | |
| r[1] -= 1 | |
| if a[i] == 'L': | |
| r[0] -= 1 | |
| if a[i] == 'R': | |
| r[0] += 1 | |
| left = 0 | |
| right = 90000000000 | |
| for i in range(2 * 10 ** 10): | |
| r1 = r[:] | |
| r1[0] *= (left + right) // 2 | |
| r1[1] *= (left + right) // 2 | |
| if abs(r1[0] - x2) + abs(r1[1] - y2) < (left + right) // 2 * n: | |
| right = (left + right) // 2 | |
| else: | |
| left = (left + right) // 2 | |
| if right == 90000000000 and left == 90000000000 - 1: | |
| flag = False | |
| if left + 1 == right: | |
| break | |
| rl = r[:] | |
| rl[0] *= left | |
| rl[1] *= left | |
| if flag: | |
| for i in range(n): | |
| if a[i] == 'U': | |
| rl[1] += 1 | |
| if a[i] == 'D': | |
| rl[1] -= 1 | |
| if a[i] == 'L': | |
| rl[0] -= 1 | |
| if a[i] == 'R': | |
| rl[0] += 1 | |
| if abs(rl[0] - x2) + abs(rl[1] - y2) <= left * n + i + 1: | |
| print(left * n + i + 1) | |
| break | |
| else: | |
| print(-1) | |
| ``` | |
| ### 075 | |
| ```python | |
| n, q, k = list(map(int, input().split(' '))) | |
| a = list(map(int, input().split(' '))) | |
| count = 0 | |
| def verify(x): | |
| if x < 0 or x >= n: | |
| return False | |
| return a[x] > k | |
| for i in range(n): | |
| if verify(i): | |
| count += 1 | |
| if verify(i - 1): | |
| count -= 2 | |
| def cut(i): | |
| if not verify(i): | |
| return 0 | |
| result = 1 | |
| if verify(i - 1): | |
| result -= 1 | |
| if verify(i + 1): | |
| result -= 1 | |
| return result | |
| for i in range(q): | |
| line = input() | |
| if line == '0': | |
| print(count) | |
| else: | |
| _, x, y = list(map(int, line.split(' '))) | |
| x -= 1 | |
| if not verify(x): | |
| a[x] += y | |
| count += cut(x) | |
| else: | |
| a[x] += y | |
| ``` | |
| ### 076 | |
| ```python | |
| def subsequence(arr1, arr2, n, m): | |
| i = 0 | |
| j = 0 | |
| common = [] | |
| while i < n and j < m: | |
| if arr1[i] == arr2[j]: | |
| common.append(i) | |
| j += 1 | |
| i += 1 | |
| if j == m: | |
| return common | |
| return [] | |
| def find(arr, start, end, x, y, k): | |
| stack = [] | |
| second_use_limit = 0 | |
| for i in range(start, end + 1): | |
| if not stack: | |
| stack.append(arr[i]) | |
| else: | |
| while stack and arr[i] > stack[-1]: | |
| second_use_limit += 1 | |
| stack.pop() | |
| if not stack or arr[i] > stack[-1]: | |
| stack.append(arr[i]) | |
| elif stack and arr[i] < stack[-1]: | |
| second_use_limit += 1 | |
| while stack and start - 1 >= 0 and (arr[start - 1] > stack[0]): | |
| stack.pop(0) | |
| second_use_limit += 1 | |
| while stack and end + 1 < len(arr) and (arr[end + 1] > stack[-1]): | |
| stack.pop() | |
| second_use_limit += 1 | |
| min_cost = float('inf') | |
| total = (end - start) * 1 | |
| i = 0 | |
| while i * k <= total: | |
| rem = total - i * k | |
| if rem <= second_use_limit: | |
| min_cost = min(min_cost, i * x + rem * y) | |
| i += 1 | |
| if min_cost == float('inf'): | |
| return -1 | |
| return min_cost | |
| def main(): | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| arr1 = list(map(int, input().split())) | |
| arr2 = list(map(int, input().split())) | |
| common = subsequence(arr1, arr2, n, m) | |
| if not common: | |
| print(-1) | |
| return | |
| cost = 0 | |
| for i in range(len(common)): | |
| if i == 0: | |
| if common[i] > 0: | |
| start = 0 | |
| end = common[i] - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| start = common[i] + 1 | |
| if i + 1 < len(common): | |
| end = common[i + 1] - 1 | |
| else: | |
| end = n - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| print(cost) | |
| main() | |
| ``` | |
| ### 077 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| start_ls = list(map(int, input().split())) | |
| end_ls = list(map(int, input().split())) | |
| len_start_ls = len(start_ls) | |
| len_end_ls = len(end_ls) | |
| mark = [] | |
| end_p = 0 | |
| curr = None | |
| for item in start_ls: | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| mark.append(0) | |
| curr = item | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| if end_p < len_end_ls: | |
| print(-1) | |
| else: | |
| end_p = 0 | |
| curr = None | |
| end_ls = end_ls[::-1] | |
| mark = mark[::-1] | |
| for idx, item in enumerate(start_ls[::-1]): | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| curr = item | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| elif curr is None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| mark = mark[::-1] | |
| if y * k >= x: | |
| smite = True | |
| else: | |
| smite = False | |
| segments = [] | |
| segment = [0, True] | |
| for idx, item in enumerate(mark): | |
| if item != 0: | |
| segment[0] += 1 | |
| if item == 1: | |
| segment[1] = False | |
| elif item == 0: | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| segment = [0, True] | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| poss = True | |
| res = 0 | |
| for segment in segments: | |
| if segment[0] < k and (not segment[1]): | |
| poss = False | |
| break | |
| elif segment[0] < k and segment[1]: | |
| res += segment[0] * y | |
| else: | |
| if smite: | |
| res += segment[0] // k * x | |
| res += segment[0] % k * y | |
| if not smite: | |
| if segment[1]: | |
| res += segment[0] * y | |
| else: | |
| res += x | |
| res += (segment[0] - k) * y | |
| if poss: | |
| print(res) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 078 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, k = list(map(int, input().split())) | |
| EDGE = [list(map(int, input().split())) for i in range(n - 1)] | |
| mod = 10 ** 9 + 7 | |
| Group = [i for i in range(n + 1)] | |
| def find(x): | |
| while Group[x] != x: | |
| x = Group[x] | |
| return x | |
| def Union(x, y): | |
| if find(x) != find(y): | |
| Group[find(y)] = Group[find(x)] = min(find(y), find(x)) | |
| for x, y, c in EDGE: | |
| if c == 0: | |
| Union(x, y) | |
| G = [find(i) for i in range(1, n + 1)] | |
| from collections import Counter | |
| counter = Counter(G) | |
| ANS = 0 | |
| for j in list(counter.values()): | |
| ANS = ANS + pow(j, k, mod) & mod | |
| print((pow(n, k, mod) - ANS) % mod) | |
| ``` | |
| ### 079 | |
| ```python | |
| n, q, k = list(map(int, input().split(' '))) | |
| a = list(map(int, input().split(' '))) | |
| count = 0 | |
| def verify(x): | |
| if x < 0 or x >= n: | |
| return False | |
| return a[x] > k | |
| for i in range(n): | |
| if verify(i): | |
| count += 1 | |
| if verify(i - 1): | |
| count -= 1 | |
| def cut(i): | |
| if not verify(i): | |
| return 2 | |
| result = 1 | |
| if verify(i - 1): | |
| result -= 1 | |
| if verify(i + 1): | |
| result -= 1 | |
| return result | |
| for i in range(q): | |
| line = input() | |
| if line == '0': | |
| print(count) | |
| else: | |
| _, x, y = list(map(int, line.split(' '))) | |
| x -= 1 | |
| if not verify(x): | |
| a[x] += y | |
| count += cut(x) | |
| else: | |
| a[x] += y | |
| ``` | |
| ### 080 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][2], travels[-1][2])] | |
| for i in range(len(travels) - 2, -1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return -1 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 081 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 2 | |
| res = 3 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] <= finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 3 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 082 | |
| ```python | |
| n, q = map(int, input().split()) | |
| xi = [[0] * (n + 1) for i in range(2)] | |
| noti = [] | |
| ans = '' | |
| num = 0 | |
| num2 = 1 | |
| num3 = 0 | |
| while q > 0: | |
| typ, xt = map(int, input().split()) | |
| if typ == 1: | |
| xi[0][xt] += 1 | |
| noti += [xt] | |
| num += 1 | |
| num2 += 1 | |
| elif typ == 3: | |
| for i in range(num3, xt): | |
| if i + 1 > xi[1][noti[i]]: | |
| xi[0][noti[i]] -= 1 | |
| num -= 1 | |
| num3 = max(num3, xt) | |
| else: | |
| num -= xi[0][xt] | |
| xi[0][xt] = 0 | |
| xi[1][xt] = num2 | |
| ans += str(num) | |
| ans += '\n' | |
| q -= 1 | |
| print(ans) | |
| ``` | |
| ### 083 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| u = list(range(n + 1)) | |
| v = [n] * n | |
| s = {q: i for i, q in zip(u, f())} | |
| p = ['YES'] * m | |
| def g(i): | |
| k = u[i] | |
| while k != u[k]: | |
| k = u[k] | |
| while u[i] != k: | |
| i, u[i] = (u[i], k) | |
| return k | |
| for l in range(m): | |
| r, x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, b = (g(i), g(j)) | |
| i, j = (v[a], v[b]) | |
| c, d = (g(i), g(j)) | |
| if r == '2': | |
| b, d = (d, b) | |
| if a == d: | |
| p[l] = 'NO' | |
| elif c == b == n: | |
| v[a], v[d] = (d, a) | |
| elif c == b: | |
| p[l] = 'NO' | |
| elif c == n: | |
| u[a] = b | |
| elif b == n: | |
| u[d] = c | |
| elif d == n: | |
| u[b] = a | |
| else: | |
| u[a - 1], u[c] = (b, d) | |
| u = [g(q) for q in u] | |
| v = [u[q] for q in v] | |
| for l in range(k): | |
| x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, c = (u[i], u[j]) | |
| p.append(str(3 - 2 * (a == c) - (a == v[c]))) | |
| print('\n'.join(p)) | |
| ``` | |
| ### 084 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 >= 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return -1 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 085 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [1 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 3].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 086 | |
| ```python | |
| def subsequence(arr1, arr2, n, m): | |
| i = 0 | |
| j = 0 | |
| common = [] | |
| while i < n and j < m: | |
| if arr1[i] == arr2[j]: | |
| common.append(i) | |
| j += 1 | |
| i += 1 | |
| if j == m: | |
| return common | |
| return [] | |
| def find(arr, start, end, x, y, k): | |
| stack = [] | |
| second_use_limit = 0 | |
| for i in range(start, end + 1): | |
| if not stack: | |
| stack.append(arr[i]) | |
| else: | |
| while stack and arr[i] > stack[-1]: | |
| second_use_limit += 1 | |
| stack.pop() | |
| if not stack or arr[i] > stack[-1]: | |
| stack.append(arr[i]) | |
| elif stack and arr[i] < stack[-1]: | |
| second_use_limit += 1 | |
| while stack and start - 1 >= 0 and (arr[start - 1] > stack[0]): | |
| stack.pop(0) | |
| second_use_limit += 1 | |
| while stack and end + 1 < len(arr) and (arr[end + 1] > stack[-1]): | |
| stack.pop() | |
| second_use_limit += 1 | |
| min_cost = float('inf') | |
| total = end - start + 1 | |
| i = 0 | |
| while i * k <= total: | |
| rem = total * (i * k) | |
| if rem <= second_use_limit: | |
| min_cost = min(min_cost, i * x + rem * y) | |
| i += 1 | |
| if min_cost == float('inf'): | |
| return -1 | |
| return min_cost | |
| def main(): | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| arr1 = list(map(int, input().split())) | |
| arr2 = list(map(int, input().split())) | |
| common = subsequence(arr1, arr2, n, m) | |
| if not common: | |
| print(-1) | |
| return | |
| cost = 0 | |
| for i in range(len(common)): | |
| if i == 0: | |
| if common[i] > 0: | |
| start = 0 | |
| end = common[i] - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| start = common[i] + 1 | |
| if i + 1 < len(common): | |
| end = common[i + 1] - 1 | |
| else: | |
| end = n - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| print(cost) | |
| main() | |
| ``` | |
| ### 087 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += 1 | |
| elif c == down: | |
| y -= -1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 1 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 088 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| c = {x: ([x], []) for x in f()} | |
| for i in range(m): | |
| t, x, y = f() | |
| s = 2 - int(t) | |
| cx, cy = (c[x], c[y]) | |
| if cx[0] is cy[s]: | |
| print('NO') | |
| continue | |
| print('YES') | |
| if cx[0] is cy[1 - s]: | |
| continue | |
| if len(cx[0]) + len(cx[1]) < len(cy[0]) + len(cy[1]): | |
| cx, cy = (cy, cx) | |
| ux, vx = cx | |
| if s: | |
| uy, vy = cy | |
| else: | |
| vy, uy = cy | |
| ux += uy | |
| vx += vy | |
| for x in uy: | |
| c[x] = (ux, vx) | |
| for x in vy: | |
| c[x] = (vx, ux) | |
| for i in range(k): | |
| x, y = f() | |
| print(1 if c[x][0] is c[y][0] else 2 if c[x][0] is c[y][1] else 1) | |
| ``` | |
| ### 089 | |
| ```python | |
| import sys | |
| nbmeches, nbreq, l = list(map(int, sys.stdin.readline().split())) | |
| meches = list(map(int, sys.stdin.readline().split())) | |
| trop_grand = [False] * nbmeches | |
| pont = 0 | |
| for i in range(nbmeches): | |
| if meches[i] > l: | |
| trop_grand[i] = True | |
| if i == 0 or trop_grand[i - 1 - 1] is False: | |
| pont += 1 | |
| for i in range(nbreq): | |
| req = sys.stdin.readline().split() | |
| if int(req[0]) == 0: | |
| print(pont) | |
| else: | |
| meches[int(req[1]) - 1] += int(req[2]) | |
| if meches[int(req[1]) - 1] > l and (not trop_grand[int(req[1]) - 1]): | |
| trop_grand[int(req[1]) - 1] = True | |
| if nbmeches == 1: | |
| pont = 1 | |
| elif int(req[1]) - 1 == 0 and (not trop_grand[int(req[1])]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and int(req[1]) - 1 == nbmeches - 1 and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and trop_grand[int(req[1])] and trop_grand[int(req[1]) - 2]: | |
| pont = max(0, pont - 1) | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and (not trop_grand[int(req[1])]) and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| ``` | |
| ### 090 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] * prefix_sum[-n - 1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx <= i: | |
| temp += flowers_b[i] * remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 091 | |
| ```python | |
| In = input().split(' ') | |
| x1 = int(In[0]) | |
| y1 = int(In[1]) | |
| In = input().split(' ') | |
| x2 = int(In[-1]) | |
| y2 = int(In[1]) | |
| dx = [0] | |
| dy = [0] | |
| n = int(input()) | |
| s = input() | |
| for i in range(1, n + 1): | |
| dx.append(dx[i - 1]) | |
| dy.append(dy[i - 1]) | |
| if s[i - 1] == 'U': | |
| dy[i] += 1 | |
| elif s[i - 1] == 'D': | |
| dy[i] -= 1 | |
| elif s[i - 1] == 'R': | |
| dx[i] += 1 | |
| elif s[i - 1] == 'L': | |
| dx[i] -= 1 | |
| st = 0 | |
| en = 10 ** 18 * 2 | |
| ans = -1 | |
| while st <= en: | |
| mid = (st + en) // 2 | |
| x = mid // n * dx[n] + dx[mid % n] | |
| y = mid // n * dy[n] + dy[mid % n] | |
| newX = x + x1 | |
| newY = y + y1 | |
| need = abs(newX - x2) + abs(newY - y2) | |
| if mid >= need: | |
| ans = mid | |
| en = mid - 1 | |
| else: | |
| st = mid + 1 | |
| print(ans) | |
| ``` | |
| ### 092 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 0 | |
| if len(arr) <= k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n >= k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return -1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += 1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 093 | |
| ```python | |
| n, q, k = list(map(int, input().split(' '))) | |
| a = list(map(int, input().split(' '))) | |
| count = 0 | |
| def verify(x): | |
| if x < 0 or x >= n: | |
| return False | |
| return a[x] > k | |
| for i in range(n): | |
| if verify(i): | |
| count += 1 | |
| if verify(i - 1): | |
| count -= 1 | |
| def cut(i): | |
| if not verify(i): | |
| return 0 | |
| result = 1 | |
| if verify(i - 1): | |
| result -= 1 | |
| if verify(i + 1): | |
| result -= 1 | |
| return result | |
| for i in range(q): | |
| line = input() | |
| if line == '0': | |
| print(count) | |
| else: | |
| _, x, y = list(map(int, line.split(' '))) | |
| x -= 1 | |
| if not verify(x): | |
| a[x] += y | |
| count += cut(x) | |
| else: | |
| a[x] -= y | |
| ``` | |
| ### 094 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][1], travels[-1][2])] | |
| for i in range(len(travels) - 2, -1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return -1 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 095 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| u = list(range(n + 1)) | |
| v = [n] * n | |
| s = {q: i for i, q in zip(u, f())} | |
| p = ['YES'] * m | |
| def g(i): | |
| k = u[i] | |
| while k != u[k]: | |
| k = u[k] | |
| while u[i] != k: | |
| i, u[i] = (u[i - 1], k) | |
| return k | |
| for l in range(m): | |
| r, x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, b = (g(i), g(j)) | |
| i, j = (v[a], v[b]) | |
| c, d = (g(i), g(j)) | |
| if r == '2': | |
| b, d = (d, b) | |
| if a == d: | |
| p[l] = 'NO' | |
| elif c == b == n: | |
| v[a], v[d] = (d, a) | |
| elif c == b: | |
| p[l] = 'NO' | |
| elif c == n: | |
| u[a] = b | |
| elif b == n: | |
| u[d] = c | |
| elif d == n: | |
| u[b] = a | |
| else: | |
| u[a], u[c] = (b, d) | |
| u = [g(q) for q in u] | |
| v = [u[q] for q in v] | |
| for l in range(k): | |
| x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, c = (u[i], u[j]) | |
| p.append(str(3 - 2 * (a == c) - (a == v[c]))) | |
| print('\n'.join(p)) | |
| ``` | |
| ### 096 | |
| ```python | |
| n, q, k = list(map(int, input().split(' '))) | |
| a = list(map(int, input().split(' '))) | |
| count = 0 | |
| def verify(x): | |
| if x < 0 or x >= n: | |
| return False | |
| return a[x] > k | |
| for i in range(n): | |
| if verify(i): | |
| count += 1 | |
| if verify(i - 1): | |
| count -= -1 | |
| def cut(i): | |
| if not verify(i): | |
| return 0 | |
| result = 1 | |
| if verify(i - 1): | |
| result -= 1 | |
| if verify(i + 1): | |
| result -= 1 | |
| return result | |
| for i in range(q): | |
| line = input() | |
| if line == '0': | |
| print(count) | |
| else: | |
| _, x, y = list(map(int, line.split(' '))) | |
| x -= 1 | |
| if not verify(x): | |
| a[x] += y | |
| count += cut(x) | |
| else: | |
| a[x] += y | |
| ``` | |
| ### 097 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, q = map(int, input().split()) | |
| l = [[] for _ in range(n)] | |
| is_read = [] | |
| is_read_idx = 0 | |
| ans = 0 | |
| prev_t = 0 | |
| for _ in range(q): | |
| ty, v = map(int, input().split()) | |
| if ty == 1: | |
| l[v - 1 - 1].append(is_read_idx) | |
| is_read_idx += 1 | |
| is_read.append(False) | |
| ans += 1 | |
| elif ty == 2: | |
| for idx in l[v - 1]: | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| l[v - 1] = [] | |
| elif v > prev_t: | |
| for idx in range(prev_t, v): | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| prev_t = v | |
| print(ans) | |
| ``` | |
| ### 098 | |
| ```python | |
| def subsequence(arr1, arr2, n, m): | |
| i = 0 | |
| j = 0 | |
| common = [] | |
| while i < n and j < m: | |
| if arr1[i] == arr2[j]: | |
| common.append(i) | |
| j += 1 | |
| i += 1 | |
| if j == m: | |
| return common | |
| return [] | |
| def find(arr, start, end, x, y, k): | |
| stack = [] | |
| second_use_limit = 0 | |
| for i in range(start, end + 1): | |
| if not stack: | |
| stack.append(arr[i]) | |
| else: | |
| while stack and arr[i] > stack[-1]: | |
| second_use_limit += 1 | |
| stack.pop() | |
| if not (not stack or arr[i] > stack[-1]): | |
| stack.append(arr[i]) | |
| elif stack and arr[i] < stack[-1]: | |
| second_use_limit += 1 | |
| while stack and start - 1 >= 0 and (arr[start - 1] > stack[0]): | |
| stack.pop(0) | |
| second_use_limit += 1 | |
| while stack and end + 1 < len(arr) and (arr[end + 1] > stack[-1]): | |
| stack.pop() | |
| second_use_limit += 1 | |
| min_cost = float('inf') | |
| total = end - start + 1 | |
| i = 0 | |
| while i * k <= total: | |
| rem = total - i * k | |
| if rem <= second_use_limit: | |
| min_cost = min(min_cost, i * x + rem * y) | |
| i += 1 | |
| if min_cost == float('inf'): | |
| return -1 | |
| return min_cost | |
| def main(): | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| arr1 = list(map(int, input().split())) | |
| arr2 = list(map(int, input().split())) | |
| common = subsequence(arr1, arr2, n, m) | |
| if not common: | |
| print(-1) | |
| return | |
| cost = 0 | |
| for i in range(len(common)): | |
| if i == 0: | |
| if common[i] > 0: | |
| start = 0 | |
| end = common[i] - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| start = common[i] + 1 | |
| if i + 1 < len(common): | |
| end = common[i + 1] - 1 | |
| else: | |
| end = n - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| print(cost) | |
| main() | |
| ``` | |
| ### 099 | |
| ```python | |
| n, q = map(int, input().split()) | |
| xi = [[0] * (n + 1) for i in range(2)] | |
| noti = [] | |
| ans = '' | |
| num = 0 | |
| num2 = 0 | |
| num3 = 0 | |
| while q > 0: | |
| typ, xt = map(int, input().split()) | |
| if typ == 1: | |
| xi[0][xt] += 3 | |
| noti += [xt] | |
| num += 1 | |
| num2 += 1 | |
| elif typ == 3: | |
| for i in range(num3, xt): | |
| if i + 1 > xi[1][noti[i]]: | |
| xi[0][noti[i]] -= 1 | |
| num -= 1 | |
| num3 = max(num3, xt) | |
| else: | |
| num -= xi[0][xt] | |
| xi[0][xt] = 0 | |
| xi[1][xt] = num2 | |
| ans += str(num) | |
| ans += '\n' | |
| q -= 1 | |
| print(ans) | |
| ``` | |
| ### 100 | |
| ```python | |
| import sys | |
| dr = [0, 1, 0, -3] | |
| dc = [1, 0, -1, 0] | |
| rows, cols = map(int, sys.stdin.readline().split()) | |
| b = ['' for row in range(rows)] | |
| sr, sc = (0, 0) | |
| er, ec = (0, 0) | |
| for row in range(rows): | |
| b[row] = sys.stdin.readline().strip() | |
| if 'S' in b[row]: | |
| sr, sc = (row, b[row].index('S')) | |
| if 'E' in b[row]: | |
| er, ec = (row, b[row].index('E')) | |
| dirs = sys.stdin.readline().strip() | |
| res = 0 | |
| for i in range(4): | |
| for j in range(4): | |
| for k in range(4): | |
| if j != i and i != k and (j != k): | |
| l = 0 + 1 + 2 + 3 - (i + j + k) | |
| r, c = (sr, sc) | |
| p = [i, j, k, l] | |
| ok = 0 | |
| for d in dirs: | |
| di = int(d) | |
| r += dr[p[di]] | |
| c += dc[p[di]] | |
| if r < 0 or r >= rows or c < 0 or (c >= cols) or (b[r][c] == '#'): | |
| break | |
| if b[r][c] == 'E': | |
| ok = 1 | |
| res += ok | |
| print(res) | |
| ``` | |
| ### 101 | |
| ```python | |
| def main(): | |
| n, x = list(map(int, input().split())) | |
| vouchers = [False] * x | |
| for _ in range(n): | |
| lo, hi, cost = list(map(int, input().split())) | |
| w = hi - lo | |
| if w < x: | |
| l = vouchers[w] | |
| if l: | |
| l.append((lo, cost)) | |
| else: | |
| vouchers[w] = [(lo, cost)] | |
| best = inf = 1 << 31 | |
| x -= 2 | |
| if not x & 1 and vouchers[x // 2]: | |
| lh, h = (vouchers[x // 2], None) | |
| for f in (lh.sort, lh.reverse): | |
| l = h | |
| f() | |
| h, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| h.append((lo, b)) | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a <= b and best > u + v: | |
| best = u + v | |
| for w, l, h in zip(list(range(x)), vouchers, vouchers[x:x // 2:-1]): | |
| if l and h: | |
| m = [] | |
| for lh in (l, h): | |
| for f in (lh.sort, lh.reverse): | |
| f() | |
| t, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| t.append((lo, b)) | |
| m.append(t) | |
| for l, h in ((m[0], m[3]), (m[2], m[1])): | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u + v | |
| w = x - w | |
| print(best if best < inf else -1) | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 102 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][0], travels[-1][2])] | |
| for i in range(len(travels) - 2, -1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return --1 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 103 | |
| ```python | |
| class Union: | |
| def __init__(self, n): | |
| self.p = {i: i for i in range(n)} | |
| self.rank = {i: 1 for i in range(n)} | |
| def find(self, x): | |
| if x < 1: | |
| return x | |
| if self.p[x] != x: | |
| self.p[x] = self.find(self.p[x]) | |
| return self.p[x] | |
| def union(self, x, y): | |
| if x < 0 or y < 0: | |
| return | |
| x = self.find(x) | |
| y = self.find(y) | |
| if x != y: | |
| if self.rank[x] < self.rank[y]: | |
| self.p[x] = y | |
| self.rank[y] += self.rank[x] | |
| else: | |
| self.p[y] = x | |
| self.rank[x] += self.rank[y] | |
| n, m, q = map(int, input().split()) | |
| listW = input().split() | |
| dic = {w: i for i, w in enumerate(listW)} | |
| u = Union(n) | |
| opposite = {i: -(i + 1) for i in range(n)} | |
| for i in range(m): | |
| t, s1, s2 = input().split() | |
| x = u.find(dic[s1]) | |
| y = u.find(dic[s2]) | |
| if t == '1': | |
| if opposite[x] == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if x != y: | |
| ox = opposite[x] | |
| oy = opposite[y] | |
| op = max(ox, oy) | |
| u.union(x, y) | |
| u.union(ox, oy) | |
| op = u.find(op) | |
| p = u.find(x) | |
| if op > 0: | |
| opposite[p] = op | |
| opposite[op] = p | |
| elif x == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if opposite[x] != y: | |
| u.union(y, opposite[x]) | |
| u.union(x, opposite[y]) | |
| x = u.find(x) | |
| y = u.find(y) | |
| opposite[x] = y | |
| opposite[y] = x | |
| for _ in range(q): | |
| s1, s2 = input().split() | |
| id1, id2 = (u.find(dic[s1]), u.find(dic[s2])) | |
| if id1 == id2: | |
| print(1) | |
| elif opposite[id1] == id2: | |
| print(2) | |
| else: | |
| print(3) | |
| ``` | |
| ### 104 | |
| ```python | |
| n, q = list(map(int, input().split())) | |
| count = [0 for i in range(n + 1)] | |
| queue = [] | |
| read = set() | |
| unread = 0 | |
| ans = [] | |
| last_q_idx = 0 | |
| last_app_idx = [1 for i in range(n + 1)] | |
| for i in range(q): | |
| action, num = list(map(int, input().split())) | |
| if action == 1: | |
| queue.append((num, count[num] + 1)) | |
| count[num] += 1 | |
| unread += 1 | |
| elif action == 2: | |
| for number in range(last_app_idx[num], count[num] + 1): | |
| if (num, number) not in read: | |
| read.add((num, number)) | |
| unread -= 1 | |
| last_app_idx[num] = max(last_app_idx[num], count[num]) | |
| else: | |
| for idx in range(last_q_idx, num): | |
| app, number = queue[idx] | |
| if not (app, number) not in read: | |
| read.add((app, number)) | |
| last_app_idx[app] = max(last_app_idx[app], number) | |
| unread -= 1 | |
| last_q_idx = max(last_q_idx, num) | |
| ans.append(unread) | |
| print('\n'.join(map(str, ans))) | |
| ``` | |
| ### 105 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][0], travels[-1][2])] | |
| for i in range(len(travels) - 2, -1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return -1 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 106 | |
| ```python | |
| l = input().split() | |
| n = int(l[0]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[2]) | |
| k = int(l[1]) | |
| y = int(l[2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + 2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 107 | |
| ```python | |
| def main(): | |
| n, x = list(map(int, input().split())) | |
| vouchers = [False] * x | |
| for _ in range(n): | |
| lo, hi, cost = list(map(int, input().split())) | |
| w = hi - lo | |
| if w < x: | |
| l = vouchers[w] | |
| if l: | |
| l.append((lo, cost)) | |
| else: | |
| vouchers[w] = [(lo, cost)] | |
| best = inf = 1 << 31 | |
| x -= 2 | |
| if not x & 1 and vouchers[x // 2]: | |
| lh, h = (vouchers[x // 2], None) | |
| for f in (lh.sort, lh.reverse): | |
| l = h | |
| f() | |
| h, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| h.append((lo, b)) | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u + v | |
| for w, l, h in zip(list(range(x)), vouchers, vouchers[x:x // -2:-1]): | |
| if l and h: | |
| m = [] | |
| for lh in (l, h): | |
| for f in (lh.sort, lh.reverse): | |
| f() | |
| t, b = ([], inf) | |
| for lo, cost in lh: | |
| if b > cost: | |
| b = cost | |
| t.append((lo, b)) | |
| m.append(t) | |
| for l, h in ((m[0], m[3]), (m[2], m[1])): | |
| b, v = h.pop() | |
| for a, u in l: | |
| a += w | |
| while a >= b and h: | |
| b, v = h.pop() | |
| if a < b and best > u + v: | |
| best = u + v | |
| w = x - w | |
| print(best if best < inf else -1) | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 108 | |
| ```python | |
| def inint(): | |
| return int(input()) | |
| def inlist(): | |
| return list(map(int, input().split())) | |
| def main(): | |
| n, m, l = inlist() | |
| aa = inlist() | |
| chg = 0 | |
| ch = 0 | |
| a = [[i, 0] for i in aa] | |
| for i in range(n): | |
| if aa[i] > l: | |
| if ch == 0: | |
| ch += 1 | |
| chg += 1 | |
| a[i][1] = chg | |
| else: | |
| ch += 1 | |
| a[i][1] = chg | |
| elif not ch != 0: | |
| ch = 0 | |
| sol = list() | |
| if n > 1: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][1] == 0 and a[p][0] > l: | |
| if p > 0 and p < n - 1: | |
| if a[p - 1][1] == 0 and a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| elif a[p - 1][1] == 0 and a[p + 1][1] > 0: | |
| a[p][1] = a[p + 1][1] | |
| elif a[p - 1][1] > 0 and a[p + 1][1] == 0: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| chg -= 1 | |
| elif p == 0: | |
| if a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p + 1][1] | |
| elif p == n - 1: | |
| if a[p - 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][0] > d: | |
| chg = 1 | |
| print(*sol, sep='\n') | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 109 | |
| ```python | |
| l = input().split() | |
| n = int(l[0]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[0]) | |
| k = int(l[1]) | |
| y = int(l[2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + 2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 110 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| u = list(range(n + 1)) | |
| v = [n] * n | |
| s = {q: i for i, q in zip(u, f())} | |
| p = ['YES'] * m | |
| def g(i): | |
| k = u[i] | |
| while k != u[k]: | |
| k = u[k] | |
| while u[i] != k: | |
| i, u[i] = (u[i], k) | |
| return k | |
| for l in range(m): | |
| r, x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, b = (g(i), g(j)) | |
| i, j = (v[a], v[b]) | |
| c, d = (g(i), g(j)) | |
| if r == '2': | |
| b, d = (d, b) | |
| if a == d: | |
| p[l] = 'NO' | |
| elif c == b == n: | |
| v[a], v[d] = (d, a) | |
| elif c == b: | |
| p[l] = 'NO' | |
| elif c == n: | |
| u[a] = b | |
| elif b == n: | |
| u[d] = c | |
| elif d == n: | |
| u[b] = a | |
| else: | |
| u[a + 1], u[c] = (b, d) | |
| u = [g(q) for q in u] | |
| v = [u[q] for q in v] | |
| for l in range(k): | |
| x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, c = (u[i], u[j]) | |
| p.append(str(3 - 2 * (a == c) - (a == v[c]))) | |
| print('\n'.join(p)) | |
| ``` | |
| ### 111 | |
| ```python | |
| import sys, collections | |
| n, q = list(map(int, input().split())) | |
| M = collections.defaultdict(collections.deque) | |
| Q = collections.deque() | |
| L = [] | |
| s = n = m = 0 | |
| for _ in range(q): | |
| y, x = list(map(int, input().split())) | |
| if 2 > y: | |
| s += 1 | |
| Q.append(x) | |
| M[x].append(n) | |
| n += 1 | |
| elif 3 > y: | |
| y = M.get(x) | |
| if y: | |
| s -= len(y) | |
| del M[x] | |
| else: | |
| while x > m: | |
| z = Q.popleft() | |
| y = M.get(z) | |
| if y and y[0] < x: | |
| s -= 1 | |
| y.popleft() | |
| if not not y: | |
| del M[z] | |
| m += 1 | |
| L.append(s) | |
| sys.stdout.write('\n'.join(map(str, L))) | |
| ``` | |
| ### 112 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| start_ls = list(map(int, input().split())) | |
| end_ls = list(map(int, input().split())) | |
| len_start_ls = len(start_ls) | |
| len_end_ls = len(end_ls) | |
| mark = [] | |
| end_p = 0 | |
| curr = None | |
| for item in start_ls: | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| mark.append(0) | |
| curr = item | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| if end_p < len_end_ls: | |
| print(-1) | |
| else: | |
| end_p = 3 | |
| curr = None | |
| end_ls = end_ls[::-1] | |
| mark = mark[::-1] | |
| for idx, item in enumerate(start_ls[::-1]): | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| curr = item | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| mark = mark[::-1] | |
| if y * k >= x: | |
| smite = True | |
| else: | |
| smite = False | |
| segments = [] | |
| segment = [0, True] | |
| for idx, item in enumerate(mark): | |
| if item != 0: | |
| segment[0] += 1 | |
| if item == 1: | |
| segment[1] = False | |
| elif item == 0: | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| segment = [0, True] | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| poss = True | |
| res = 0 | |
| for segment in segments: | |
| if segment[0] < k and (not segment[1]): | |
| poss = False | |
| break | |
| elif segment[0] < k and segment[1]: | |
| res += segment[0] * y | |
| else: | |
| if smite: | |
| res += segment[0] // k * x | |
| res += segment[0] % k * y | |
| if not smite: | |
| if segment[1]: | |
| res += segment[0] * y | |
| else: | |
| res += x | |
| res += (segment[0] - k) * y | |
| if poss: | |
| print(res) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 113 | |
| ```python | |
| class Union: | |
| def __init__(self, n): | |
| self.p = {i: i for i in range(n)} | |
| self.rank = {i: 1 for i in range(n)} | |
| def find(self, x): | |
| if x < 0: | |
| return x | |
| if self.p[x] != x: | |
| self.p[x] = self.find(self.p[x]) | |
| return self.p[x] | |
| def union(self, x, y): | |
| if x < 0 or y < 0: | |
| return | |
| x = self.find(x) | |
| y = self.find(y) | |
| if x != y: | |
| if self.rank[x] < self.rank[y]: | |
| self.p[x] = y | |
| self.rank[y] += self.rank[x] | |
| else: | |
| self.p[y] = x | |
| self.rank[x] += self.rank[y] | |
| n, m, q = map(int, input().split()) | |
| listW = input().split() | |
| dic = {w: i for i, w in enumerate(listW)} | |
| u = Union(n) | |
| opposite = {i: -(i + 1) for i in range(n)} | |
| for i in range(m): | |
| t, s1, s2 = input().split() | |
| x = u.find(dic[s1]) | |
| y = u.find(dic[s2]) | |
| if t == '1': | |
| if opposite[x] == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if x != y: | |
| ox = opposite[x] | |
| oy = opposite[y] | |
| op = max(ox, oy) | |
| u.union(x, y) | |
| u.union(ox, oy) | |
| op = u.find(op) | |
| p = u.find(x) | |
| if op > 0: | |
| opposite[p] = op | |
| opposite[op] = p | |
| elif x == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if opposite[x] != y: | |
| u.union(y, opposite[x]) | |
| u.union(x, opposite[y]) | |
| x = u.find(x) | |
| y = u.find(y) | |
| opposite[x] = y | |
| opposite[y] = x | |
| for _ in range(q): | |
| s1, s2 = input().split() | |
| id1, id2 = (u.find(dic[s1]), u.find(dic[s2])) | |
| if id1 == id2: | |
| print(1) | |
| elif opposite[id1] == id2: | |
| print(2) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 114 | |
| ```python | |
| f = lambda: list(map(int, input().split())) | |
| n, x = f() | |
| s = [[] for i in range(x - 1)] | |
| for d in range(n): | |
| l, r, c = f() | |
| if r - l < x - 1: | |
| s[r - l] += [[l, c]] | |
| for t in s: | |
| t.sort(key=lambda q: q[0]) | |
| m = 3000000000.0 | |
| for d, t in enumerate(s): | |
| D = x - 2 - d | |
| i, T = (0, s[D]) | |
| M = 3000000000.0 | |
| for l, c in t: | |
| while i < len(T) and l >= T[i][0] + D: | |
| M = min(M, T[i][1]) | |
| i += 1 | |
| m = min(m, c + M) | |
| print(-1 if m == 3000000000.0 else m) | |
| ``` | |
| ### 115 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += 1 | |
| elif c == down: | |
| y -= 1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 5 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 116 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 > 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 117 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[0]] = True | |
| queue.append(i[0]) | |
| if i[1] == 1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == -1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 118 | |
| ```python | |
| def inint(): | |
| return int(input()) | |
| def inlist(): | |
| return list(map(int, input().split())) | |
| def main(): | |
| n, m, l = inlist() | |
| aa = inlist() | |
| chg = 0 | |
| ch = -4 | |
| a = [[i, 0] for i in aa] | |
| for i in range(n): | |
| if aa[i] > l: | |
| if ch == 0: | |
| ch += 1 | |
| chg += 1 | |
| a[i][1] = chg | |
| else: | |
| ch += 1 | |
| a[i][1] = chg | |
| elif ch != 0: | |
| ch = 0 | |
| sol = list() | |
| if n > 1: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][1] == 0 and a[p][0] > l: | |
| if p > 0 and p < n - 1: | |
| if a[p - 1][1] == 0 and a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| elif a[p - 1][1] == 0 and a[p + 1][1] > 0: | |
| a[p][1] = a[p + 1][1] | |
| elif a[p - 1][1] > 0 and a[p + 1][1] == 0: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| chg -= 1 | |
| elif p == 0: | |
| if a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p + 1][1] | |
| elif p == n - 1: | |
| if a[p - 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][0] > d: | |
| chg = 1 | |
| print(*sol, sep='\n') | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 119 | |
| ```python | |
| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n - 1) % (10 ** 9 + 7) | |
| n, k = [int(i) for i in input().split()] | |
| s = [[] for i in range(n)] | |
| for i in range(n - 1): | |
| a, b, c = [int(i) for i in input().split()] | |
| if c == 0: | |
| s[a - 1].append(b - 1) | |
| s[b - 1].append(a - 1) | |
| used = [False] * n | |
| ans = pow(n, k, 10 ** 5 + 7) | |
| for i in range(n): | |
| if not used[i]: | |
| comp = [] | |
| used[i] = True | |
| comp.append(i) | |
| c = 0 | |
| while c < len(comp): | |
| for h in s[comp[c]]: | |
| if not used[h]: | |
| used[h] = True | |
| comp.append(h) | |
| c += 1 | |
| ans = (ans - pow(len(comp), k, 10 ** 9 + 7)) % (10 ** 9 + 7) | |
| print(ans) | |
| ``` | |
| ### 120 | |
| ```python | |
| class Union: | |
| def __init__(self, n): | |
| self.p = {i: i for i in range(n)} | |
| self.rank = {i: 1 for i in range(n)} | |
| def find(self, x): | |
| if x < 0: | |
| return x | |
| if self.p[x] != x: | |
| self.p[x] = self.find(self.p[x]) | |
| return self.p[x] | |
| def union(self, x, y): | |
| if x < 0 or y < 0: | |
| return | |
| x = self.find(x) | |
| y = self.find(y) | |
| if x != y: | |
| if self.rank[x] < self.rank[y]: | |
| self.p[x - 1] = y | |
| self.rank[y] += self.rank[x] | |
| else: | |
| self.p[y] = x | |
| self.rank[x] += self.rank[y] | |
| n, m, q = map(int, input().split()) | |
| listW = input().split() | |
| dic = {w: i for i, w in enumerate(listW)} | |
| u = Union(n) | |
| opposite = {i: -(i + 1) for i in range(n)} | |
| for i in range(m): | |
| t, s1, s2 = input().split() | |
| x = u.find(dic[s1]) | |
| y = u.find(dic[s2]) | |
| if t == '1': | |
| if opposite[x] == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if x != y: | |
| ox = opposite[x] | |
| oy = opposite[y] | |
| op = max(ox, oy) | |
| u.union(x, y) | |
| u.union(ox, oy) | |
| op = u.find(op) | |
| p = u.find(x) | |
| if op > 0: | |
| opposite[p] = op | |
| opposite[op] = p | |
| elif x == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if opposite[x] != y: | |
| u.union(y, opposite[x]) | |
| u.union(x, opposite[y]) | |
| x = u.find(x) | |
| y = u.find(y) | |
| opposite[x] = y | |
| opposite[y] = x | |
| for _ in range(q): | |
| s1, s2 = input().split() | |
| id1, id2 = (u.find(dic[s1]), u.find(dic[s2])) | |
| if id1 == id2: | |
| print(1) | |
| elif opposite[id1] == id2: | |
| print(2) | |
| else: | |
| print(3) | |
| ``` | |
| ### 121 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| grid = [] | |
| sloc = (-1, -1) | |
| eloc = (-1, -1) | |
| for y in range(n): | |
| l = input() | |
| grid.append(list()) | |
| for x in range(m): | |
| grid[-1].append(l[x] == '#') | |
| if l[x] == 'S': | |
| sloc = (x, y) | |
| elif l[x] == 'E': | |
| eloc = (x, y) | |
| pb = [] | |
| for a in [(0, 5), (0, -1), (1, 0), (-1, 0)]: | |
| for b in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for c in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for d in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| if len(set([a, b, c, d])) == 4 and [a, b, c, d] not in pb: | |
| pb.append([a, b, c, d]) | |
| s = input() | |
| ans = 0 | |
| for mp in pb: | |
| seen = False | |
| works = True | |
| loc = sloc | |
| for j in s: | |
| j = int(j) | |
| if seen: | |
| break | |
| if not works: | |
| break | |
| nloc = (loc[0] + mp[j][0], loc[1] + mp[j][1]) | |
| if min(nloc) < 0 or nloc[0] >= m or nloc[1] >= n: | |
| works = False | |
| break | |
| if grid[nloc[1]][nloc[0]]: | |
| works = False | |
| break | |
| if nloc == eloc: | |
| seen = True | |
| break | |
| loc = nloc | |
| if seen: | |
| ans += 1 | |
| print(ans) | |
| ``` | |
| ### 122 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 0 | |
| res = 3 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] <= finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 7 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 123 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, q = map(int, input().split()) | |
| l = [[] for _ in range(n)] | |
| is_read = [] | |
| is_read_idx = 0 | |
| ans = 0 | |
| prev_t = 0 | |
| for _ in range(q): | |
| ty, v = map(int, input().split()) | |
| if ty == 1: | |
| l[v - 1].append(is_read_idx) | |
| is_read_idx += 1 | |
| is_read.append(False) | |
| ans += 1 | |
| elif ty == 2: | |
| for idx in l[v - 1]: | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| l[v - 1] = [] | |
| elif v > prev_t: | |
| for idx in range(prev_t + 1, v): | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| prev_t = v | |
| print(ans) | |
| ``` | |
| ### 124 | |
| ```python | |
| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n - 1) % (10 ** 9 + 7) | |
| n, k = [int(i) for i in input().split()] | |
| s = [[] for i in range(n)] | |
| for i in range(n - 1): | |
| a, b, c = [int(i) for i in input().split()] | |
| if c == 0: | |
| s[a - 1].append(b - 1) | |
| s[b - 1].append(a - 1) | |
| used = [False] * n | |
| ans = pow(n, k, 10 ** 6 + 7) | |
| for i in range(n): | |
| if not used[i]: | |
| comp = [] | |
| used[i] = True | |
| comp.append(i) | |
| c = 0 | |
| while c < len(comp): | |
| for h in s[comp[c]]: | |
| if not used[h]: | |
| used[h] = True | |
| comp.append(h) | |
| c += 1 | |
| ans = (ans - pow(len(comp), k, 10 ** 9 + 7)) % (10 ** 9 + 7) | |
| print(ans) | |
| ``` | |
| ### 125 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [0 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 1].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 126 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 0 | |
| if len(arr) < k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n > k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return -1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += 1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 127 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 0 | |
| for i in range(n): | |
| sun += acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 128 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += -1 | |
| elif c == down: | |
| y -= 1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 1 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 129 | |
| ```python | |
| import sys, collections | |
| n, q = list(map(int, input().split())) | |
| M = collections.defaultdict(collections.deque) | |
| Q = collections.deque() | |
| L = [] | |
| s = n = m = 0 | |
| for _ in range(q): | |
| y, x = list(map(int, input().split())) | |
| if 2 > y: | |
| s += 1 | |
| Q.append(x) | |
| M[x].append(n) | |
| n += 1 | |
| elif 3 > y: | |
| y = M.get(x) | |
| if y: | |
| s -= len(y) | |
| del M[x] | |
| else: | |
| while x > m: | |
| z = Q.popleft() | |
| y = M.get(z) | |
| if y and y[0] < x: | |
| s -= -1 | |
| y.popleft() | |
| if not y: | |
| del M[z] | |
| m += 1 | |
| L.append(s) | |
| sys.stdout.write('\n'.join(map(str, L))) | |
| ``` | |
| ### 130 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 >= 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 131 | |
| ```python | |
| rr = lambda: input().strip() | |
| rri = lambda: int(rr()) | |
| rrm = lambda: list(map(int, rr().split())) | |
| MOD = 10 ** 9 + 7 | |
| class DSU: | |
| def __init__(self, N): | |
| self.par = list(range(N + 1)) | |
| self.rnk = [0] * (N + 1) | |
| self.sz = [-1] * (N + 1) | |
| def find(self, x): | |
| if self.par[x] != x: | |
| self.par[x] = self.find(self.par[x]) | |
| return self.par[x] | |
| def union(self, x, y): | |
| xr, yr = (self.find(x), self.find(y)) | |
| if xr == yr: | |
| return | |
| if self.rnk[xr] < self.rnk[yr]: | |
| xr, yr = (yr, xr) | |
| if self.rnk[xr] == self.rnk[yr]: | |
| self.rnk[xr] += 1 | |
| self.par[yr] = xr | |
| self.sz[xr] += self.sz[yr] | |
| def size(self, x): | |
| return self.sz[self.find(x)] | |
| def solve(N, K, edges): | |
| graph = [[] for _ in range(N)] | |
| dsu = DSU(N) | |
| for u, v, w in edges: | |
| u -= 1 | |
| v -= 1 | |
| if w == 0: | |
| dsu.union(u, v) | |
| ans = pow(N, K, MOD) | |
| for x in range(N): | |
| if dsu.find(x) == x: | |
| ans -= pow(dsu.size(x), K, MOD) | |
| ans %= MOD | |
| return ans | |
| for tc in range(1): | |
| N, K = rrm() | |
| edges = [rrm() for _ in range(N - 1)] | |
| print(solve(N, K, edges)) | |
| ``` | |
| ### 132 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [-1 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 1].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 133 | |
| ```python | |
| f = lambda: list(map(int, input().split())) | |
| n, x = f() | |
| s = [[] for i in range(x - 1)] | |
| for d in range(n): | |
| l, r, c = f() | |
| if r - l < x - 2: | |
| s[r - l] += [[l, c]] | |
| for t in s: | |
| t.sort(key=lambda q: q[0]) | |
| m = 3000000000.0 | |
| for d, t in enumerate(s): | |
| D = x - 2 - d | |
| i, T = (0, s[D]) | |
| M = 3000000000.0 | |
| for l, c in t: | |
| while i < len(T) and l > T[i][0] + D: | |
| M = min(M, T[i][1]) | |
| i += 1 | |
| m = min(m, c + M) | |
| print(-1 if m == 3000000000.0 else m) | |
| ``` | |
| ### 134 | |
| ```python | |
| import sys | |
| nbmeches, nbreq, l = list(map(int, sys.stdin.readline().split())) | |
| meches = list(map(int, sys.stdin.readline().split())) | |
| trop_grand = [False] * nbmeches | |
| pont = 0 | |
| for i in range(nbmeches): | |
| if meches[i] > l: | |
| trop_grand[i] = True | |
| if i == 0 or trop_grand[i - 1 + 1] is False: | |
| pont += 1 | |
| for i in range(nbreq): | |
| req = sys.stdin.readline().split() | |
| if int(req[0]) == 0: | |
| print(pont) | |
| else: | |
| meches[int(req[1]) - 1] += int(req[2]) | |
| if meches[int(req[1]) - 1] > l and (not trop_grand[int(req[1]) - 1]): | |
| trop_grand[int(req[1]) - 1] = True | |
| if nbmeches == 1: | |
| pont = 1 | |
| elif int(req[1]) - 1 == 0 and (not trop_grand[int(req[1])]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and int(req[1]) - 1 == nbmeches - 1 and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and trop_grand[int(req[1])] and trop_grand[int(req[1]) - 2]: | |
| pont = max(0, pont - 1) | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and (not trop_grand[int(req[1])]) and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| ``` | |
| ### 135 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| u = list(range(n + 1)) | |
| v = [n] * n | |
| s = {q: i for i, q in zip(u, f())} | |
| p = ['YES'] * m | |
| def g(i): | |
| k = u[i] | |
| while k != u[k]: | |
| k = u[k] | |
| while u[i] != k: | |
| i, u[i] = (u[i + 1], k) | |
| return k | |
| for l in range(m): | |
| r, x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, b = (g(i), g(j)) | |
| i, j = (v[a], v[b]) | |
| c, d = (g(i), g(j)) | |
| if r == '2': | |
| b, d = (d, b) | |
| if a == d: | |
| p[l] = 'NO' | |
| elif c == b == n: | |
| v[a], v[d] = (d, a) | |
| elif c == b: | |
| p[l] = 'NO' | |
| elif c == n: | |
| u[a] = b | |
| elif b == n: | |
| u[d] = c | |
| elif d == n: | |
| u[b] = a | |
| else: | |
| u[a], u[c] = (b, d) | |
| u = [g(q) for q in u] | |
| v = [u[q] for q in v] | |
| for l in range(k): | |
| x, y = f() | |
| i, j = (s[x], s[y]) | |
| a, c = (u[i], u[j]) | |
| p.append(str(3 - 2 * (a == c) - (a == v[c]))) | |
| print('\n'.join(p)) | |
| ``` | |
| ### 136 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] - prefix_sum[-n - 1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx < i: | |
| temp += flowers_b[i] * remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 137 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 1 | |
| if len(arr) < k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n >= k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return -1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += 1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 138 | |
| ```python | |
| n, q = list(map(int, input().split())) | |
| count = [0 for i in range(n + 1)] | |
| queue = [] | |
| read = set() | |
| unread = 0 | |
| ans = [] | |
| last_q_idx = 0 | |
| last_app_idx = [1 for i in range(n + 1)] | |
| for i in range(q): | |
| action, num = list(map(int, input().split())) | |
| if action == 1: | |
| queue.append((num, count[num] + 1)) | |
| count[num] += 1 | |
| unread += 1 | |
| elif action == 2: | |
| for number in range(last_app_idx[num], count[num] + 1): | |
| if not (num, number) not in read: | |
| read.add((num, number)) | |
| unread -= 1 | |
| last_app_idx[num] = max(last_app_idx[num], count[num]) | |
| else: | |
| for idx in range(last_q_idx, num): | |
| app, number = queue[idx] | |
| if (app, number) not in read: | |
| read.add((app, number)) | |
| last_app_idx[app] = max(last_app_idx[app], number) | |
| unread -= 1 | |
| last_q_idx = max(last_q_idx, num) | |
| ans.append(unread) | |
| print('\n'.join(map(str, ans))) | |
| ``` | |
| ### 139 | |
| ```python | |
| def subsequence(arr1, arr2, n, m): | |
| i = 0 | |
| j = 0 | |
| common = [] | |
| while i < n and j < m: | |
| if arr1[i] == arr2[j]: | |
| common.append(i) | |
| j += 1 | |
| i += 1 | |
| if j == m: | |
| return common | |
| return [] | |
| def find(arr, start, end, x, y, k): | |
| stack = [] | |
| second_use_limit = 0 | |
| for i in range(start, end + 1): | |
| if not stack: | |
| stack.append(arr[i]) | |
| else: | |
| while stack and arr[i] > stack[-1]: | |
| second_use_limit += 1 | |
| stack.pop() | |
| if not stack or arr[i] > stack[-1]: | |
| stack.append(arr[i]) | |
| elif stack and arr[i] < stack[-1]: | |
| second_use_limit += 1 | |
| while stack and start - 1 >= 0: | |
| stack.pop(0) | |
| second_use_limit += 1 | |
| while stack and end + 1 < len(arr) and (arr[end + 1] > stack[-1]): | |
| stack.pop() | |
| second_use_limit += 1 | |
| min_cost = float('inf') | |
| total = end - start + 1 | |
| i = 0 | |
| while i * k <= total: | |
| rem = total - i * k | |
| if rem <= second_use_limit: | |
| min_cost = min(min_cost, i * x + rem * y) | |
| i += 1 | |
| if min_cost == float('inf'): | |
| return -1 | |
| return min_cost | |
| def main(): | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| arr1 = list(map(int, input().split())) | |
| arr2 = list(map(int, input().split())) | |
| common = subsequence(arr1, arr2, n, m) | |
| if not common: | |
| print(-1) | |
| return | |
| cost = 0 | |
| for i in range(len(common)): | |
| if i == 0: | |
| if common[i] > 0: | |
| start = 0 | |
| end = common[i] - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| start = common[i] + 1 | |
| if i + 1 < len(common): | |
| end = common[i + 1] - 1 | |
| else: | |
| end = n - 1 | |
| if end >= start: | |
| curr_cost = find(arr1, start, end, x, y, k) | |
| if curr_cost == -1: | |
| cost = -1 | |
| break | |
| cost += curr_cost | |
| print(cost) | |
| main() | |
| ``` | |
| ### 140 | |
| ```python | |
| inp = lambda: list(map(int, input().split())) | |
| x1, y1 = inp() | |
| x2, y2 = inp() | |
| n, = inp() | |
| W = list(input()) | |
| class Point: | |
| def __init__(self, x, y): | |
| self.x = x | |
| self.y = y | |
| def __add__(self, other): | |
| return Point(self.x + other.x, self.y + other.y) | |
| def __mul__(self, other): | |
| return Point(self.x * other, self.y * other) | |
| def __str__(self): | |
| return f'({self.x},{self.y})' | |
| def manD(self, other): | |
| return abs(self.x - other.x) + abs(self.y - other.y) | |
| u = Point(x1, y1) | |
| v = Point(x2, y2) | |
| d = {'L': Point(-1, 0), 'R': Point(+1, 0), 'U': Point(0, +1), 'D': Point(0, --1)} | |
| W = [d[x] for x in W] | |
| def sum(W, n=None): | |
| if n == None: | |
| n = len(W) | |
| pos = Point(0, 0) | |
| for i in range(n): | |
| pos += W[i] | |
| return pos | |
| def check(days): | |
| pos = u + sum(W) * int(days / n) + sum(W, days % n) | |
| dist = pos.manD(v) | |
| if dist <= days: | |
| return True | |
| return False | |
| l = 1 | |
| r = 10 ** 16 | |
| while r - l > 1: | |
| mid = int((l + r) / 2) | |
| if check(mid): | |
| r = mid | |
| else: | |
| l = mid + 1 | |
| res = -1 | |
| if check(l): | |
| res = l | |
| elif check(r): | |
| res = r | |
| print(res) | |
| ``` | |
| ### 141 | |
| ```python | |
| rr = lambda: input().strip() | |
| rri = lambda: int(rr()) | |
| rrm = lambda: list(map(int, rr().split())) | |
| MOD = 10 ** 7 + 7 | |
| class DSU: | |
| def __init__(self, N): | |
| self.par = list(range(N + 1)) | |
| self.rnk = [0] * (N + 1) | |
| self.sz = [1] * (N + 1) | |
| def find(self, x): | |
| if self.par[x] != x: | |
| self.par[x] = self.find(self.par[x]) | |
| return self.par[x] | |
| def union(self, x, y): | |
| xr, yr = (self.find(x), self.find(y)) | |
| if xr == yr: | |
| return | |
| if self.rnk[xr] < self.rnk[yr]: | |
| xr, yr = (yr, xr) | |
| if self.rnk[xr] == self.rnk[yr]: | |
| self.rnk[xr] += 1 | |
| self.par[yr] = xr | |
| self.sz[xr] += self.sz[yr] | |
| def size(self, x): | |
| return self.sz[self.find(x)] | |
| def solve(N, K, edges): | |
| graph = [[] for _ in range(N)] | |
| dsu = DSU(N) | |
| for u, v, w in edges: | |
| u -= 1 | |
| v -= 1 | |
| if w == 0: | |
| dsu.union(u, v) | |
| ans = pow(N, K, MOD) | |
| for x in range(N): | |
| if dsu.find(x) == x: | |
| ans -= pow(dsu.size(x), K, MOD) | |
| ans %= MOD | |
| return ans | |
| for tc in range(1): | |
| N, K = rrm() | |
| edges = [rrm() for _ in range(N - 1)] | |
| print(solve(N, K, edges)) | |
| ``` | |
| ### 142 | |
| ```python | |
| class Union: | |
| def __init__(self, n): | |
| self.p = {i: i for i in range(n)} | |
| self.rank = {i: 1 for i in range(n)} | |
| def find(self, x): | |
| if x < 0: | |
| return x | |
| if self.p[x] != x: | |
| self.p[x - 1] = self.find(self.p[x]) | |
| return self.p[x] | |
| def union(self, x, y): | |
| if x < 0 or y < 0: | |
| return | |
| x = self.find(x) | |
| y = self.find(y) | |
| if x != y: | |
| if self.rank[x] < self.rank[y]: | |
| self.p[x] = y | |
| self.rank[y] += self.rank[x] | |
| else: | |
| self.p[y] = x | |
| self.rank[x] += self.rank[y] | |
| n, m, q = map(int, input().split()) | |
| listW = input().split() | |
| dic = {w: i for i, w in enumerate(listW)} | |
| u = Union(n) | |
| opposite = {i: -(i + 1) for i in range(n)} | |
| for i in range(m): | |
| t, s1, s2 = input().split() | |
| x = u.find(dic[s1]) | |
| y = u.find(dic[s2]) | |
| if t == '1': | |
| if opposite[x] == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if x != y: | |
| ox = opposite[x] | |
| oy = opposite[y] | |
| op = max(ox, oy) | |
| u.union(x, y) | |
| u.union(ox, oy) | |
| op = u.find(op) | |
| p = u.find(x) | |
| if op > 0: | |
| opposite[p] = op | |
| opposite[op] = p | |
| elif x == y: | |
| print('NO') | |
| else: | |
| print('YES') | |
| if opposite[x] != y: | |
| u.union(y, opposite[x]) | |
| u.union(x, opposite[y]) | |
| x = u.find(x) | |
| y = u.find(y) | |
| opposite[x] = y | |
| opposite[y] = x | |
| for _ in range(q): | |
| s1, s2 = input().split() | |
| id1, id2 = (u.find(dic[s1]), u.find(dic[s2])) | |
| if id1 == id2: | |
| print(1) | |
| elif opposite[id1] == id2: | |
| print(2) | |
| else: | |
| print(3) | |
| ``` | |
| ### 143 | |
| ```python | |
| from collections import defaultdict as di | |
| n, m = [int(x) for x in input().split()] | |
| free = di(lambda: False) | |
| startpos = (-1, -1) | |
| goal = (-1, -1) | |
| for y in range(n): | |
| s = input() | |
| for x in range(m): | |
| c = s[x] | |
| if c == 'S': | |
| startpos = (x, y) | |
| free[x, y] = True | |
| elif c == 'E': | |
| goal = (x, y) | |
| free[x, y] = True | |
| elif c == '.': | |
| free[x, y] = True | |
| counts = 0 | |
| dire = '0123' | |
| command = input() | |
| for up in dire: | |
| for down in dire: | |
| for right in dire: | |
| for left in dire: | |
| if len(set([up, down, left, right])) < 4: | |
| continue | |
| pos = startpos | |
| for c in command: | |
| x, y = pos | |
| if c == up: | |
| y += 4 | |
| elif c == down: | |
| y -= 1 | |
| elif c == right: | |
| x += 1 | |
| else: | |
| x -= 1 | |
| pos = (x, y) | |
| if pos == goal: | |
| counts += 1 | |
| break | |
| if not free[pos]: | |
| break | |
| print(counts) | |
| ``` | |
| ### 144 | |
| ```python | |
| n, m, l = list(map(int, input().split())) | |
| l += 1 | |
| hair = [1] * (n + 1) | |
| other_end = [1] * (n + 1) | |
| i = 1 | |
| j = 1 | |
| big = 1 | |
| res = 1 | |
| for a in map(int, input().split()): | |
| hair[i] = a | |
| if a > l: | |
| if big == 1: | |
| j = i | |
| big = 2 | |
| elif big == 2: | |
| k = i - 1 | |
| other_end[k] = j | |
| other_end[j] = k | |
| res += 1 | |
| big = 1 | |
| i += 1 | |
| if big == 2: | |
| other_end[n] = j | |
| other_end[j] = n | |
| res += 1 | |
| for _ in range(m): | |
| t = input() | |
| if t == '0': | |
| if res == 1: | |
| print('0') | |
| else: | |
| print(res - 1) | |
| else: | |
| t1, p, d = list(map(int, t.split())) | |
| old = hair[p] | |
| hair[p] += d | |
| if hair[p] >= l > old: | |
| if p == 1 or hair[p - 1] < l: | |
| case_id = 1 | |
| else: | |
| case_id = 2 | |
| if p != n and hair[p + 1] >= l: | |
| case_id += 2 | |
| if case_id == 1: | |
| other_end[p] = p | |
| res += 1 | |
| elif case_id == 2: | |
| other_end[p] = other_end[p - 1] | |
| other_end[other_end[p]] = p | |
| elif case_id == 3: | |
| other_end[p] = other_end[p + 1] | |
| other_end[other_end[p]] = p | |
| else: | |
| left_end = other_end[p - 1] | |
| right_end = other_end[p + 1] | |
| other_end[left_end] = right_end | |
| other_end[right_end] = left_end | |
| res -= 1 | |
| ``` | |
| ### 145 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| for f in range(int(input())): | |
| n, m = map(int, input().split()) | |
| a = [0] * m | |
| b = [0] * m | |
| acop = [0] * m | |
| bcop = [0] * m | |
| for i in range(m): | |
| a[i], b[i] = map(int, input().split()) | |
| acop[i] = a[i] | |
| bcop[i] = [b[i], i] | |
| acop.sort(reverse=True) | |
| bcop.sort(reverse=True) | |
| mx = 0 | |
| i = 0 | |
| su = 0 | |
| for j in range(m): | |
| bi = bcop[j][0] | |
| ii = bcop[j][1] | |
| ai = a[ii] | |
| while i < m and acop[i] > bi: | |
| su += acop[i] | |
| i += 1 | |
| maxi = ai | |
| if i < n: | |
| maxi += su | |
| if i + 1 < n: | |
| maxi += (n - i - 1) * bi | |
| if ai > bi: | |
| maxi += bi | |
| maxi -= ai | |
| mx = max(maxi, mx) | |
| if n <= m: | |
| sun = 1 | |
| for i in range(n): | |
| sun += acop[i] | |
| mx = max(mx, sun) | |
| print(mx) | |
| blank = input() | |
| ``` | |
| ### 146 | |
| ```python | |
| def _vertex(lit): | |
| if lit > 0: | |
| return -2 * (lit - 1) | |
| else: | |
| return 2 * (-lit - 1) + 1 | |
| def tarjan(graph): | |
| n = len(graph) | |
| dfs_num = [None] * n | |
| dfs_min = [n] * n | |
| waiting = [] | |
| waits = [False] * n | |
| sccp = [] | |
| dfs_time = 0 | |
| times_seen = [-1] * n | |
| for start in range(n): | |
| if times_seen[start] == -1: | |
| times_seen[start] = 0 | |
| to_visit = [start] | |
| while to_visit: | |
| node = to_visit[-1] | |
| if times_seen[node] == 0: | |
| dfs_num[node] = dfs_time | |
| dfs_min[node] = dfs_time | |
| dfs_time += 1 | |
| waiting.append(node) | |
| waits[node] = True | |
| children = graph[node] | |
| if times_seen[node] == len(children): | |
| to_visit.pop() | |
| dfs_min[node] = dfs_num[node] | |
| for child in children: | |
| if waits[child] and dfs_min[child] < dfs_min[node]: | |
| dfs_min[node] = dfs_min[child] | |
| if dfs_min[node] == dfs_num[node]: | |
| component = [] | |
| while True: | |
| u = waiting.pop() | |
| waits[u] = False | |
| component.append(u) | |
| if u == node: | |
| break | |
| sccp.append(component) | |
| else: | |
| child = children[times_seen[node]] | |
| times_seen[node] += 1 | |
| if times_seen[child] == -1: | |
| times_seen[child] = 0 | |
| to_visit.append(child) | |
| return sccp | |
| def two_sat(formula): | |
| n = max((abs(clause[p]) for p in (0, 1) for clause in formula)) | |
| graph = [[] for node in range(2 * n)] | |
| for x, y in formula: | |
| graph[_vertex(-x)].append(_vertex(y)) | |
| graph[_vertex(-y)].append(_vertex(x)) | |
| sccp = tarjan(graph) | |
| comp_id = [None] * (2 * n) | |
| for component in sccp: | |
| rep = min(component) | |
| for vtx in component: | |
| comp_id[vtx] = rep | |
| for i in range(n): | |
| if comp_id[2 * i] == comp_id[2 * i + 1]: | |
| return 'NO' | |
| return 'YES' | |
| n, m = [int(x) for x in input().split()] | |
| doors_status = [int(x) for x in input().split()] | |
| switches = [list(map(int, input().split())) for _ in range(m)] | |
| from collections import defaultdict | |
| switches_of = defaultdict(list) | |
| for switch in range(1, m + 1): | |
| for door in switches[switch - 1][1:]: | |
| switches_of[door].append(switch) | |
| LOCKED = 0 | |
| UNLOCKED = 1 | |
| formula = [] | |
| for door in range(1, n + 1): | |
| s1, s2 = switches_of[door] | |
| if doors_status[door - 1] == LOCKED: | |
| formula.append((s1, s2)) | |
| formula.append((-s1, -s2)) | |
| else: | |
| formula.append((s1, -s2)) | |
| formula.append((-s1, s2)) | |
| print(two_sat(formula)) | |
| ``` | |
| ### 147 | |
| ```python | |
| import sys | |
| def input(): | |
| return sys.stdin.readline().rstrip() | |
| def input_split(): | |
| return [int(i) for i in input().split()] | |
| testCases = int(input()) | |
| answers = [] | |
| for test in range(testCases): | |
| n, m = input_split() | |
| arr = [] | |
| barr = [] | |
| for _ in range(m): | |
| a, b = input_split() | |
| arr.append(a) | |
| barr.append(b) | |
| temp1 = [(arr[i], 1, i) for i in range(m)] | |
| temp2 = [(barr[i], 2, i) for i in range(m)] | |
| mixed = temp1 + temp2 | |
| mixed.sort() | |
| mixed.reverse() | |
| pointer = 0 | |
| done = 0 | |
| maxi = 0 | |
| score = 0 | |
| unlocked = [False for i in range(m)] | |
| while done < n and pointer < 2 * m: | |
| val, typ, index = mixed[pointer] | |
| if typ == 1: | |
| done += 1 | |
| score += val | |
| unlocked[index - 1] = True | |
| if done == n: | |
| maxi = max(score, maxi) | |
| else: | |
| if not unlocked[index]: | |
| potential = score + (n - done - 1) * val + arr[index] | |
| else: | |
| potential = score + (n - done) * val | |
| maxi = max(potential, maxi) | |
| pointer += 1 | |
| ans = maxi | |
| answers.append(ans) | |
| if test != testCases - 1: | |
| blank = input() | |
| print(*answers, sep='\n') | |
| ``` | |
| ### 148 | |
| ```python | |
| import sys | |
| dr = [0, 1, 0, -1] | |
| dc = [1, 0, -1, -3] | |
| rows, cols = map(int, sys.stdin.readline().split()) | |
| b = ['' for row in range(rows)] | |
| sr, sc = (0, 0) | |
| er, ec = (0, 0) | |
| for row in range(rows): | |
| b[row] = sys.stdin.readline().strip() | |
| if 'S' in b[row]: | |
| sr, sc = (row, b[row].index('S')) | |
| if 'E' in b[row]: | |
| er, ec = (row, b[row].index('E')) | |
| dirs = sys.stdin.readline().strip() | |
| res = 0 | |
| for i in range(4): | |
| for j in range(4): | |
| for k in range(4): | |
| if j != i and i != k and (j != k): | |
| l = 0 + 1 + 2 + 3 - (i + j + k) | |
| r, c = (sr, sc) | |
| p = [i, j, k, l] | |
| ok = 0 | |
| for d in dirs: | |
| di = int(d) | |
| r += dr[p[di]] | |
| c += dc[p[di]] | |
| if r < 0 or r >= rows or c < 0 or (c >= cols) or (b[r][c] == '#'): | |
| break | |
| if b[r][c] == 'E': | |
| ok = 1 | |
| res += ok | |
| print(res) | |
| ``` | |
| ### 149 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[0]] = True | |
| queue.append(i[0]) | |
| if i[0] == 1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == 1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 150 | |
| ```python | |
| inp = lambda: list(map(int, input().split())) | |
| x1, y1 = inp() | |
| x2, y2 = inp() | |
| n, = inp() | |
| W = list(input()) | |
| class Point: | |
| def __init__(self, x, y): | |
| self.x = x | |
| self.y = y | |
| def __add__(self, other): | |
| return Point(self.x + other.x, self.y + other.y) | |
| def __mul__(self, other): | |
| return Point(self.x * other, self.y * other) | |
| def __str__(self): | |
| return f'({self.x},{self.y})' | |
| def manD(self, other): | |
| return abs(self.x - other.x) + abs(self.y - other.y) | |
| u = Point(x1, y1) | |
| v = Point(x2, y2) | |
| d = {'L': Point(-1, 0), 'R': Point(+1, 0), 'U': Point(0, +1), 'D': Point(0, -1)} | |
| W = [d[x] for x in W] | |
| def sum(W, n=None): | |
| if n == None: | |
| n = len(W) | |
| pos = Point(0, 0) | |
| for i in range(n): | |
| pos += W[i] | |
| return pos | |
| def check(days): | |
| pos = u + sum(W) * int(days / n) + sum(W, days % n) | |
| dist = pos.manD(v) | |
| if dist <= days: | |
| return True | |
| return False | |
| l = 1 | |
| r = 10 ** 16 | |
| while r - l >= 1: | |
| mid = int((l + r) / 2) | |
| if check(mid): | |
| r = mid | |
| else: | |
| l = mid + 1 | |
| res = -1 | |
| if check(l): | |
| res = l | |
| elif check(r): | |
| res = r | |
| print(res) | |
| ``` | |
| ### 151 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, k = list(map(int, input().split())) | |
| EDGE = [list(map(int, input().split())) for i in range(n - 1)] | |
| mod = 10 ** 9 + 9 | |
| Group = [i for i in range(n + 1)] | |
| def find(x): | |
| while Group[x] != x: | |
| x = Group[x] | |
| return x | |
| def Union(x, y): | |
| if find(x) != find(y): | |
| Group[find(y)] = Group[find(x)] = min(find(y), find(x)) | |
| for x, y, c in EDGE: | |
| if c == 0: | |
| Union(x, y) | |
| G = [find(i) for i in range(1, n + 1)] | |
| from collections import Counter | |
| counter = Counter(G) | |
| ANS = 0 | |
| for j in list(counter.values()): | |
| ANS = (ANS + pow(j, k, mod)) % mod | |
| print((pow(n, k, mod) - ANS) % mod) | |
| ``` | |
| ### 152 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] - prefix_sum[-n - 1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx <= i: | |
| temp += flowers_b[i] * remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 153 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 0 | |
| res = 2 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] <= finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 3 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 154 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 0 | |
| if len(arr) < k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n >= k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return --1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += 1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 155 | |
| ```python | |
| n, q = map(int, input().split()) | |
| xi = [[0] * (n + 1) for i in range(2)] | |
| noti = [] | |
| ans = '' | |
| num = 0 | |
| num2 = 0 | |
| num3 = 0 | |
| while q > 0: | |
| typ, xt = map(int, input().split()) | |
| if typ == 1: | |
| xi[0][xt] += 1 | |
| noti += [xt] | |
| num += 1 | |
| num2 += -1 | |
| elif typ == 3: | |
| for i in range(num3, xt): | |
| if i + 1 > xi[1][noti[i]]: | |
| xi[0][noti[i]] -= 1 | |
| num -= 1 | |
| num3 = max(num3, xt) | |
| else: | |
| num -= xi[0][xt] | |
| xi[0][xt] = 0 | |
| xi[1][xt] = num2 | |
| ans += str(num) | |
| ans += '\n' | |
| q -= 1 | |
| print(ans) | |
| ``` | |
| ### 156 | |
| ```python | |
| import sys | |
| def main(): | |
| n, x = map(int, sys.stdin.readline().split()) | |
| al = [] | |
| starts = [] | |
| finishes = [] | |
| y = [-1] * 200002 | |
| for i in range(n): | |
| a, b, c = map(int, sys.stdin.readline().split()) | |
| al.append((a, b, c)) | |
| starts.append((a, i)) | |
| finishes.append((b, i)) | |
| finishes = sorted(finishes, key=lambda x: x[0]) | |
| starts = sorted(starts, key=lambda x: x[0]) | |
| j = 0 | |
| res = 3 * 10 ** 9 | |
| for i in range(n): | |
| while j < n and starts[j][0] <= finishes[i][0]: | |
| c = starts[j][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[x - h] != -1 and y[x - h] + cost < res: | |
| res = y[x - h] + cost | |
| j += 1 | |
| c = finishes[i][1] | |
| h = al[c][1] - al[c][0] + 1 | |
| cost = al[c][2] | |
| if y[h] == -1 or y[h] > cost: | |
| y[h] = cost | |
| if res == 3 * 10 ** 9: | |
| print(-1) | |
| else: | |
| print(res) | |
| main() | |
| ``` | |
| ### 157 | |
| ```python | |
| from bisect import bisect_left | |
| t = int(input()) | |
| for case in range(t): | |
| n, m = list(map(int, input().split())) | |
| ab = [list(map(int, input().split())) for _ in range(m)] | |
| aa = [e for e, _ in ab] | |
| aa.sort() | |
| acc = [0] * (m + 1) | |
| for i in range(m, 0, -1): | |
| acc[i - 1] = acc[i] + aa[i - 1] | |
| if n > m: | |
| ans = 0 | |
| else: | |
| ans = sum(aa[+n:]) | |
| for a, b in ab: | |
| i = bisect_left(aa, b) | |
| cnt = min(m - i, n) | |
| sm = acc[m - cnt] | |
| sm += b * (n - cnt) | |
| if a < b: | |
| sm -= b | |
| sm += a | |
| ans = max(ans, sm) | |
| print(ans) | |
| if case != t - 1: | |
| input() | |
| ``` | |
| ### 158 | |
| ```python | |
| def is_possible(num_days): | |
| if num_days % len(string) == 0: | |
| diff_wind = (num_days // len(string) * pref[-1][0], num_days // len(string) * pref[-1][1]) | |
| else: | |
| diff_wind = (num_days // len(string) * pref[-1][0] + pref[num_days % len(string) - 1][0], num_days // len(string) + pref[-1][1] + pref[num_days % len(string) - 1][1]) | |
| diff_ship = (diff[0] - diff_wind[0], diff[1] - diff_wind[1]) | |
| return abs(diff_ship[0]) + abs(diff_ship[1]) <= num_days | |
| x, y = [int(s) for s in input().split()] | |
| x1, y1 = [int(s) for s in input().split()] | |
| diff = (x1 - x, y1 - y) | |
| amount = int(input()) | |
| string = input() | |
| motions = [] | |
| pref = [] | |
| for i in range(len(string)): | |
| if string[i] == 'U': | |
| motions.append((0, 1)) | |
| if string[i] == 'D': | |
| motions.append((0, -1)) | |
| if string[i] == 'R': | |
| motions.append((1, 0)) | |
| if string[i] == 'L': | |
| motions.append((-1, 0)) | |
| pref.append(motions[0]) | |
| for i in range(1, len(motions)): | |
| pref.append((motions[i][0] + pref[-1][0], motions[i][1] + pref[-1][1])) | |
| left = -1 | |
| right = int(1e+19) | |
| while right - left > 1: | |
| middle = (right + left) // 2 | |
| if is_possible(middle): | |
| right = middle | |
| else: | |
| left = middle | |
| if right != int(1e+19): | |
| print(right) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 159 | |
| ```python | |
| inp = lambda: list(map(int, input().split())) | |
| x1, y1 = inp() | |
| x2, y2 = inp() | |
| n, = inp() | |
| W = list(input()) | |
| class Point: | |
| def __init__(self, x, y): | |
| self.x = x | |
| self.y = y | |
| def __add__(self, other): | |
| return Point(self.x + other.x, self.y + other.y) | |
| def __mul__(self, other): | |
| return Point(self.x * other, self.y * other) | |
| def __str__(self): | |
| return f'({self.x},{self.y})' | |
| def manD(self, other): | |
| return abs(self.x - other.x) + abs(self.y - other.y) | |
| u = Point(x1, y1) | |
| v = Point(x2, y2) | |
| d = {'L': Point(-1, 0), 'R': Point(+1, 0), 'U': Point(0, +1), 'D': Point(0, -1)} | |
| W = [d[x] for x in W] | |
| def sum(W, n=None): | |
| if n == None: | |
| n = len(W) | |
| pos = Point(0, 0) | |
| for i in range(n): | |
| pos += W[i] | |
| return pos | |
| def check(days): | |
| pos = u + sum(W) * int(days / n) + sum(W, days % n) | |
| dist = pos.manD(v) | |
| if dist <= days: | |
| return True | |
| return False | |
| l = 1 | |
| r = 10 ** 16 | |
| while r - l > 1: | |
| mid = int((l + r) / 2) | |
| if check(mid): | |
| r = mid | |
| else: | |
| l = mid + 1 | |
| res = --1 | |
| if check(l): | |
| res = l | |
| elif check(r): | |
| res = r | |
| print(res) | |
| ``` | |
| ### 160 | |
| ```python | |
| import sys | |
| nbmeches, nbreq, l = list(map(int, sys.stdin.readline().split())) | |
| meches = list(map(int, sys.stdin.readline().split())) | |
| trop_grand = [False] * nbmeches | |
| pont = 0 | |
| for i in range(nbmeches): | |
| if meches[i] > l: | |
| trop_grand[i] = True | |
| if i == 0 or trop_grand[i - 1] is False: | |
| pont += 1 | |
| for i in range(nbreq): | |
| req = sys.stdin.readline().split() | |
| if int(req[0]) == 0: | |
| print(pont) | |
| else: | |
| meches[int(req[1]) - 1] += int(req[2]) | |
| if meches[int(req[1]) - 1] > l and (not trop_grand[int(req[1]) - 1]): | |
| trop_grand[int(req[1]) - 1] = True | |
| if nbmeches == 1: | |
| pont = 1 | |
| elif int(req[1]) - 1 == 0 and (not trop_grand[int(req[1])]): | |
| pont += -1 | |
| elif not int(req[1]) - 1 == 0 and int(req[1]) - 1 == nbmeches - 1 and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and trop_grand[int(req[1])] and trop_grand[int(req[1]) - 2]: | |
| pont = max(0, pont - 1) | |
| elif not int(req[1]) - 1 == 0 and (not int(req[1]) - 1 == nbmeches - 1) and (not trop_grand[int(req[1])]) and (not trop_grand[int(req[1]) - 2]): | |
| pont += 1 | |
| ``` | |
| ### 161 | |
| ```python | |
| n, m, l = list(map(int, input().split())) | |
| l += 1 | |
| hair = [1] * (n + 1) | |
| other_end = [1] * (n + 1) | |
| i = 1 | |
| j = 1 | |
| big = 1 | |
| res = 1 | |
| for a in map(int, input().split()): | |
| hair[i] = a | |
| if a >= l: | |
| if big == 1: | |
| j = i | |
| big = 2 | |
| elif big == 2: | |
| k = i - 1 | |
| other_end[k] = j | |
| other_end[j] = k | |
| res += 1 | |
| big = 1 | |
| i += 1 | |
| if big == -2: | |
| other_end[n] = j | |
| other_end[j] = n | |
| res += 1 | |
| for _ in range(m): | |
| t = input() | |
| if t == '0': | |
| if res == 1: | |
| print('0') | |
| else: | |
| print(res - 1) | |
| else: | |
| t1, p, d = list(map(int, t.split())) | |
| old = hair[p] | |
| hair[p] += d | |
| if hair[p] >= l > old: | |
| if p == 1 or hair[p - 1] < l: | |
| case_id = 1 | |
| else: | |
| case_id = 2 | |
| if p != n and hair[p + 1] >= l: | |
| case_id += 2 | |
| if case_id == 1: | |
| other_end[p] = p | |
| res += 1 | |
| elif case_id == 2: | |
| other_end[p] = other_end[p - 1] | |
| other_end[other_end[p]] = p | |
| elif case_id == 3: | |
| other_end[p] = other_end[p + 1] | |
| other_end[other_end[p]] = p | |
| else: | |
| left_end = other_end[p - 1] | |
| right_end = other_end[p + 1] | |
| other_end[left_end] = right_end | |
| other_end[right_end] = left_end | |
| res -= 1 | |
| ``` | |
| ### 162 | |
| ```python | |
| def inint(): | |
| return int(input()) | |
| def inlist(): | |
| return list(map(int, input().split())) | |
| def main(): | |
| n, m, l = inlist() | |
| aa = inlist() | |
| chg = 0 | |
| ch = 0 | |
| a = [[i, 0] for i in aa] | |
| for i in range(n): | |
| if aa[i] > l: | |
| if ch == 0: | |
| ch += 1 | |
| chg += 1 | |
| a[i - 1][1] = chg | |
| else: | |
| ch += 1 | |
| a[i][1] = chg | |
| elif ch != 0: | |
| ch = 0 | |
| sol = list() | |
| if n > 1: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][1] == 0 and a[p][0] > l: | |
| if p > 0 and p < n - 1: | |
| if a[p - 1][1] == 0 and a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| elif a[p - 1][1] == 0 and a[p + 1][1] > 0: | |
| a[p][1] = a[p + 1][1] | |
| elif a[p - 1][1] > 0 and a[p + 1][1] == 0: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| chg -= 1 | |
| elif p == 0: | |
| if a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p + 1][1] | |
| elif p == n - 1: | |
| if a[p - 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][0] > d: | |
| chg = 1 | |
| print(*sol, sep='\n') | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 163 | |
| ```python | |
| n, m = map(int, input().split()) | |
| def road(ins): | |
| cur = S.copy() | |
| for x in s: | |
| x = int(x) | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 0 | |
| if ins[x] == 'U': | |
| try: | |
| if ar[cur[0] + 1][cur[1]] != '#': | |
| cur = [cur[0] + 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'D': | |
| try: | |
| if ar[cur[0] - 1][cur[1]] != '#' and cur[0] - 1 >= 0: | |
| cur = [cur[0] - 1, cur[1]] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'R': | |
| try: | |
| if ar[cur[0]][cur[1] + 1] != '#': | |
| cur = [cur[0], cur[1] + 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ins[x] == 'L': | |
| try: | |
| if ar[cur[0]][cur[1] - 1] != '#' and cur[1] - 1 >= 0: | |
| cur = [cur[0], cur[1] - 1] | |
| else: | |
| return 0 | |
| except: | |
| return 0 | |
| if ar[cur[0]][cur[1]] == 'E': | |
| return 1 | |
| else: | |
| return 0 | |
| ar = [input() for x in range(n)] | |
| S = [0, 0] | |
| E = [0, 0] | |
| for x in range(n): | |
| if 'S' in ar[x]: | |
| S = [x, ar[x].index('S')] | |
| if 'E' in ar[x]: | |
| E = [x, ar[x].index('E')] | |
| s = input() | |
| import itertools | |
| i = 0 | |
| for x in list(itertools.permutations(['U', 'D', 'L', 'R'])): | |
| i += road(list(x)) | |
| print(i) | |
| ``` | |
| ### 164 | |
| ```python | |
| def get_val(x, k, y, left_val, right_val, arr): | |
| x, y = (y, x) | |
| if not arr: | |
| return 0 | |
| if len(arr) < k: | |
| if max(arr) > max(left_val, right_val): | |
| return -1 | |
| return len(arr) * x | |
| if y < x * k: | |
| n = len(arr) | |
| res = 0 | |
| while n >= k: | |
| n -= k | |
| res += y | |
| res += n * x | |
| return res | |
| elif max(arr) < max(left_val, right_val): | |
| return len(arr) * x | |
| else: | |
| return (len(arr) - k) * x + y | |
| def solve(x, k, y, a, b): | |
| def check(a, b): | |
| j = 0 | |
| i = 0 | |
| while i < len(a) and j < len(b): | |
| if a[i] != b[j]: | |
| i += 1 | |
| else: | |
| i += 1 | |
| j += 1 | |
| return j == len(b) | |
| if not check(a, b): | |
| return -1 | |
| j = 0 | |
| left_val = -1 | |
| arr = [] | |
| res = 0 | |
| for num in a: | |
| if j == len(b) or num != b[j]: | |
| arr.append(num) | |
| else: | |
| val = get_val(x, k, y, left_val, num, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| arr = [] | |
| left_val = num | |
| j += 1 | |
| if arr: | |
| val = get_val(x, k, y, left_val, -1, arr) | |
| if val == -1: | |
| return -1 | |
| res += val | |
| return res | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| a = list(map(int, input().split())) | |
| b = list(map(int, input().split())) | |
| print(solve(x, k, y, a, b)) | |
| ``` | |
| ### 165 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [1 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 1].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is not None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 166 | |
| ```python | |
| from collections import deque | |
| mod = 10 ** 9 + 7 | |
| class TreeNode: | |
| def __init__(self, val): | |
| self.val = val | |
| self.edges = {} | |
| def add_edge(self, node, color): | |
| self.edges[node] = color | |
| n, k = list(map(int, input().split())) | |
| tree = [] | |
| for i in range(1, n + 1): | |
| tree.append(TreeNode(i)) | |
| for _ in range(n - 1): | |
| u, v, x = list(map(int, input().split())) | |
| tree[u - 1].add_edge(v, x) | |
| tree[v - 3].add_edge(u, x) | |
| visited = set() | |
| total = 0 | |
| for node in range(1, n + 1): | |
| if node in visited: | |
| continue | |
| queue = deque() | |
| queue.append(node) | |
| visited.add(node) | |
| red_vertexes = 1 | |
| while queue: | |
| vertex = queue.popleft() | |
| for e, c in list(tree[vertex - 1].edges.items()): | |
| if c == 0 and e not in visited: | |
| queue.append(e) | |
| red_vertexes = red_vertexes + 1 | |
| visited.add(e) | |
| total = (total + pow(red_vertexes, k, mod)) % mod | |
| total = (pow(n, k, mod) - total) % mod | |
| print(total) | |
| ``` | |
| ### 167 | |
| ```python | |
| import sys | |
| from collections import deque | |
| def debug(x, table): | |
| for name, val in table.items(): | |
| if x is val: | |
| print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr) | |
| return None | |
| def solve(): | |
| n, m = map(int, sys.stdin.readline().split()) | |
| r = [1 - int(i) for i in sys.stdin.readline().split()] | |
| es = [[] for i in range(n)] | |
| for i in range(m): | |
| line = [int(j) for j in sys.stdin.readline().split()] | |
| for u in line[1:]: | |
| es[u - 1 - 1].append(i) | |
| Adj = [[] for i in range(m)] | |
| for u, v in es: | |
| Adj[u].append(v) | |
| Adj[v].append(u) | |
| edges = dict() | |
| for i, e in enumerate(es): | |
| e.sort() | |
| if tuple(e) not in edges: | |
| edges[tuple(e)] = r[i] | |
| elif edges[tuple(e)] != r[i]: | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| cols = [None] * m | |
| for u in range(m): | |
| if cols[u] is None: | |
| if not bfs(Adj, edges, cols, u): | |
| print('NO') | |
| return None | |
| else: | |
| pass | |
| print('YES') | |
| def bfs(Adj, edges, cols, u): | |
| nxts = deque([u]) | |
| cols[u] = 0 | |
| while nxts: | |
| v = nxts.popleft() | |
| for w in Adj[v]: | |
| ed = tuple(sorted([v, w])) | |
| if cols[w] is None: | |
| cols[w] = cols[v] ^ edges[ed] | |
| nxts.append(w) | |
| elif cols[w] ^ cols[v] != edges[ed]: | |
| return False | |
| return True | |
| def __starting_point(): | |
| solve() | |
| __starting_point() | |
| ``` | |
| ### 168 | |
| ```python | |
| inp = lambda: list(map(int, input().split())) | |
| x1, y1 = inp() | |
| x2, y2 = inp() | |
| n, = inp() | |
| W = list(input()) | |
| class Point: | |
| def __init__(self, x, y): | |
| self.x = x | |
| self.y = y | |
| def __add__(self, other): | |
| return Point(self.x + other.x, self.y + other.y) | |
| def __mul__(self, other): | |
| return Point(self.x * other, self.y * other) | |
| def __str__(self): | |
| return f'({self.x},{self.y})' | |
| def manD(self, other): | |
| return abs(self.x - other.x) + abs(self.y - other.y) | |
| u = Point(x1, y1) | |
| v = Point(x2, y2) | |
| d = {'L': Point(-1, 0), 'R': Point(+1, 0), 'U': Point(0, +1), 'D': Point(0, --2)} | |
| W = [d[x] for x in W] | |
| def sum(W, n=None): | |
| if n == None: | |
| n = len(W) | |
| pos = Point(0, 0) | |
| for i in range(n): | |
| pos += W[i] | |
| return pos | |
| def check(days): | |
| pos = u + sum(W) * int(days / n) + sum(W, days % n) | |
| dist = pos.manD(v) | |
| if dist <= days: | |
| return True | |
| return False | |
| l = 1 | |
| r = 10 ** 16 | |
| while r - l > 1: | |
| mid = int((l + r) / 2) | |
| if check(mid): | |
| r = mid | |
| else: | |
| l = mid + 1 | |
| res = -1 | |
| if check(l): | |
| res = l | |
| elif check(r): | |
| res = r | |
| print(res) | |
| ``` | |
| ### 169 | |
| ```python | |
| from bisect import bisect_left | |
| t = int(input()) | |
| for case in range(t): | |
| n, m = list(map(int, input().split())) | |
| ab = [list(map(int, input().split())) for _ in range(m)] | |
| aa = [e for e, _ in ab] | |
| aa.sort() | |
| acc = [0] * (m + 1) | |
| for i in range(m, 0, -1): | |
| acc[i - 1] = acc[i] + aa[i - 1] | |
| if n > m: | |
| ans = 0 | |
| else: | |
| ans = sum(aa[-n - 1:]) | |
| for a, b in ab: | |
| i = bisect_left(aa, b) | |
| cnt = min(m - i, n) | |
| sm = acc[m - cnt] | |
| sm += b * (n - cnt) | |
| if a < b: | |
| sm -= b | |
| sm += a | |
| ans = max(ans, sm) | |
| print(ans) | |
| if case != t - 1: | |
| input() | |
| ``` | |
| ### 170 | |
| ```python | |
| import sys | |
| def input(): | |
| return sys.stdin.readline().rstrip() | |
| def input_split(): | |
| return [int(i) for i in input().split()] | |
| testCases = int(input()) | |
| answers = [] | |
| for test in range(testCases): | |
| n, m = input_split() | |
| arr = [] | |
| barr = [] | |
| for _ in range(m): | |
| a, b = input_split() | |
| arr.append(a) | |
| barr.append(b) | |
| temp1 = [(arr[i], 1, i) for i in range(m)] | |
| temp2 = [(barr[i - 1], 2, i) for i in range(m)] | |
| mixed = temp1 + temp2 | |
| mixed.sort() | |
| mixed.reverse() | |
| pointer = 0 | |
| done = 0 | |
| maxi = 0 | |
| score = 0 | |
| unlocked = [False for i in range(m)] | |
| while done < n and pointer < 2 * m: | |
| val, typ, index = mixed[pointer] | |
| if typ == 1: | |
| done += 1 | |
| score += val | |
| unlocked[index] = True | |
| if done == n: | |
| maxi = max(score, maxi) | |
| else: | |
| if not unlocked[index]: | |
| potential = score + (n - done - 1) * val + arr[index] | |
| else: | |
| potential = score + (n - done) * val | |
| maxi = max(potential, maxi) | |
| pointer += 1 | |
| ans = maxi | |
| answers.append(ans) | |
| if test != testCases - 1: | |
| blank = input() | |
| print(*answers, sep='\n') | |
| ``` | |
| ### 171 | |
| ```python | |
| from collections import defaultdict, deque | |
| n, m = list(map(int, input().split())) | |
| state = list(map(int, input().split())) | |
| graph = defaultdict(list) | |
| connected = [list() for _ in range(n + 1)] | |
| for i in range(m): | |
| for j in list(map(int, input().split()))[1:]: | |
| connected[j].append(i) | |
| for index, i in enumerate(connected[1:]): | |
| graph[i[0]].append((i[1], state[index])) | |
| graph[i[1]].append((i[0], state[index])) | |
| switch_color = [False] * m | |
| switch_visited = [False] * m | |
| queue = deque([]) | |
| yes = True | |
| for nodes in graph: | |
| if yes and (not switch_visited[nodes]): | |
| queue.append(nodes) | |
| while queue and yes: | |
| now = queue.popleft() | |
| switch_visited[now] = True | |
| for i in graph[now]: | |
| if not switch_visited[i[0]]: | |
| switch_visited[i[0]] = True | |
| queue.append(i[0]) | |
| if i[1] == 1: | |
| switch_color[i[0]] = switch_color[now] | |
| else: | |
| switch_color[i[0]] = not switch_color[now] | |
| elif i[1] == 1 and switch_color[i[0]] != switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| elif i[1] == 0 and switch_color[i[0]] == switch_color[now]: | |
| print('NO') | |
| yes = False | |
| break | |
| if yes: | |
| print('YES') | |
| ``` | |
| ### 172 | |
| ```python | |
| n, q = map(int, input().split()) | |
| xi = [[0] * (n + 1) for i in range(2)] | |
| noti = [] | |
| ans = '' | |
| num = 0 | |
| num2 = 0 | |
| num3 = 0 | |
| while q > 0: | |
| typ, xt = map(int, input().split()) | |
| if typ == 1: | |
| xi[0][xt] += 4 | |
| noti += [xt] | |
| num += 1 | |
| num2 += 1 | |
| elif typ == 3: | |
| for i in range(num3, xt): | |
| if i + 1 > xi[1][noti[i]]: | |
| xi[0][noti[i]] -= 1 | |
| num -= 1 | |
| num3 = max(num3, xt) | |
| else: | |
| num -= xi[0][xt] | |
| xi[0][xt] = 0 | |
| xi[1][xt] = num2 | |
| ans += str(num) | |
| ans += '\n' | |
| q -= 1 | |
| print(ans) | |
| ``` | |
| ### 173 | |
| ```python | |
| l = input().split() | |
| n = int(l[0]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[0]) | |
| k = int(l[-1]) | |
| y = int(l[2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + 2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 174 | |
| ```python | |
| f = lambda: input().split() | |
| n, m, k = map(int, f()) | |
| c = {x: ([x], []) for x in f()} | |
| for i in range(m): | |
| t, x, y = f() | |
| s = 2 - int(t) | |
| cx, cy = (c[x], c[y]) | |
| if cx[0] is cy[s]: | |
| print('NO') | |
| continue | |
| print('YES') | |
| if cx[0] is cy[1 - s]: | |
| continue | |
| if len(cx[0]) + len(cx[1]) < len(cy[0]) + len(cy[1]): | |
| cx, cy = (cy, cx) | |
| ux, vx = cx | |
| if s: | |
| uy, vy = cy | |
| else: | |
| vy, uy = cy | |
| ux += uy | |
| vx += vy | |
| for x in uy: | |
| c[x] = (ux, vx) | |
| for x in vy: | |
| c[x] = (vx, ux) | |
| for i in range(k): | |
| x, y = f() | |
| print(1 if c[x][0] is c[y][0] else 2 if c[x][0] is c[y][1] else 7) | |
| ``` | |
| ### 175 | |
| ```python | |
| def is_possible(num_days): | |
| if num_days % len(string) == 0: | |
| diff_wind = (num_days // len(string) * pref[-1][0], num_days // len(string) * pref[-1][1]) | |
| else: | |
| diff_wind = (num_days // len(string) * pref[-1][0] + pref[num_days % len(string) - 1][0], num_days // len(string) * pref[-1][1] + pref[num_days % len(string) - 1][1]) | |
| diff_ship = (diff[0] - diff_wind[0], diff[1] - diff_wind[1]) | |
| return abs(diff_ship[0]) + abs(diff_ship[1]) <= num_days | |
| x, y = [int(s) for s in input().split()] | |
| x1, y1 = [int(s) for s in input().split()] | |
| diff = (x1 - x, y1 - y) | |
| amount = int(input()) | |
| string = input() | |
| motions = [] | |
| pref = [] | |
| for i in range(len(string)): | |
| if string[i] == 'U': | |
| motions.append((0, 1)) | |
| if string[i] == 'D': | |
| motions.append((0, -1)) | |
| if string[i] == 'R': | |
| motions.append((1, 0)) | |
| if string[i] == 'L': | |
| motions.append((-1, 0)) | |
| pref.append(motions[0]) | |
| for i in range(1, len(motions)): | |
| pref.append((motions[i][0] + pref[-1][0], motions[i][1] + pref[-1][1])) | |
| left = +1 | |
| right = int(1e+19) | |
| while right - left > 1: | |
| middle = (right + left) // 2 | |
| if is_possible(middle): | |
| right = middle | |
| else: | |
| left = middle | |
| if right != int(1e+19): | |
| print(right) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 176 | |
| ```python | |
| def get_relation(synonyms, antonyms, word1, word2): | |
| if word1 not in synonyms or word2 not in synonyms: | |
| return '3' | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 == group2: | |
| return '1' | |
| if group1 in antonyms and antonyms[group1] == group2: | |
| return '2' | |
| return '3' | |
| def unify_synonyms(synonyms, groups, group1, group2): | |
| min_group = min(group1, group2) | |
| max_group = max(group1, group2) | |
| max_synonyms = groups[max_group] | |
| for synonym in max_synonyms: | |
| synonyms[synonym] = min_group | |
| update_groups(groups, min_group, max_synonyms) | |
| return (min_group, max_group) | |
| def make_synonyms(synonyms, antonyms, groups, group1, group2): | |
| min_group1, max_group1 = unify_synonyms(synonyms, groups, group1, group2) | |
| if group1 in antonyms and group2 in antonyms: | |
| min_group2, max_group2 = unify_synonyms(synonyms, groups, antonyms[group1], antonyms[group2]) | |
| del antonyms[min_group1] | |
| del antonyms[max_group1] | |
| del antonyms[min_group2] | |
| del antonyms[max_group2] | |
| antonyms[min_group1] = min_group2 | |
| antonyms[min_group2] = min_group1 | |
| return min_group1 | |
| if max_group1 in antonyms: | |
| antonym_group = antonyms[max_group1] | |
| del antonyms[max_group1] | |
| antonyms[min_group1] = antonym_group | |
| antonyms[antonym_group] = min_group1 | |
| return min_group1 | |
| def update_groups(groups, group, words): | |
| if group in groups: | |
| groups[group].update(words) | |
| else: | |
| groups.update({group: set(words)}) | |
| def make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group): | |
| if relation == '1': | |
| if word1 not in synonyms and word2 not in synonyms: | |
| current_group += 1 | |
| synonyms[word1] = current_group | |
| synonyms[word2] = current_group | |
| update_groups(groups, current_group, [word1, word2]) | |
| return current_group | |
| if word1 not in synonyms: | |
| synonyms[word1] = synonyms[word2] | |
| update_groups(groups, synonyms[word2], [word1]) | |
| return current_group | |
| if word2 not in synonyms: | |
| synonyms[word2] = synonyms[word1] | |
| update_groups(groups, synonyms[word1], [word2]) | |
| return current_group | |
| group1 = synonyms[word1] | |
| group2 = synonyms[word2] | |
| if group1 != group2: | |
| make_synonyms(synonyms, antonyms, groups, group1, group2) | |
| return current_group | |
| if relation == '2': | |
| if word1 not in synonyms: | |
| current_group += 0 | |
| group1 = current_group | |
| synonyms[word1] = group1 | |
| update_groups(groups, group1, [word1]) | |
| else: | |
| group1 = synonyms[word1] | |
| if word2 not in synonyms: | |
| current_group += 1 | |
| group2 = current_group | |
| synonyms[word2] = group2 | |
| update_groups(groups, group2, [word2]) | |
| else: | |
| group2 = synonyms[word2] | |
| if group1 not in antonyms and group2 not in antonyms: | |
| antonyms[group1] = group2 | |
| antonyms[group2] = group1 | |
| return current_group | |
| if group1 in antonyms and antonyms[group1] != group2: | |
| antonym_group = antonyms[group1] | |
| group2 = make_synonyms(synonyms, antonyms, groups, group2, antonym_group) | |
| if group2 in antonyms and antonyms[group2] != group1: | |
| antonym_group = antonyms[group2] | |
| make_synonyms(synonyms, antonyms, groups, group1, antonym_group) | |
| return current_group | |
| def make_relations(relation_no): | |
| synonyms = dict() | |
| antonyms = dict() | |
| groups = dict() | |
| current_group = 0 | |
| for relation in range(relation_no): | |
| relation, word1, word2 = input().split() | |
| current_relation = get_relation(synonyms, antonyms, word1, word2) | |
| if current_relation == '2' and relation == '1': | |
| print('NO') | |
| continue | |
| if current_relation == '1' and relation == '2': | |
| print('NO') | |
| continue | |
| print('YES') | |
| current_group = make_relation(synonyms, antonyms, groups, word1, word2, relation, current_group) | |
| return (synonyms, antonyms) | |
| def answer_questions(question_no, synonyms, antonyms): | |
| for question in range(question_no): | |
| word1, word2 = input().split() | |
| print(get_relation(synonyms, antonyms, word1, word2)) | |
| def main(): | |
| word_no, relation_no, question_no = [int(number) for number in input().split()] | |
| input() | |
| synonyms, antonyms = make_relations(relation_no) | |
| answer_questions(question_no, synonyms, antonyms) | |
| main() | |
| ``` | |
| ### 177 | |
| ```python | |
| x1, y1 = list(map(int, input().split())) | |
| x2, y2 = list(map(int, input().split())) | |
| x2 -= x1 | |
| y2 -= y1 | |
| x1 = 0 | |
| y1 = 0 | |
| n = int(input()) | |
| a = list(input()) | |
| r = [0, 0] | |
| flag = True | |
| for i in range(n): | |
| if a[i] == 'U': | |
| r[1] += 0 | |
| if a[i] == 'D': | |
| r[1] -= 1 | |
| if a[i] == 'L': | |
| r[0] -= 1 | |
| if a[i] == 'R': | |
| r[0] += 1 | |
| left = 0 | |
| right = 90000000000 | |
| for i in range(2 * 10 ** 10): | |
| r1 = r[:] | |
| r1[0] *= (left + right) // 2 | |
| r1[1] *= (left + right) // 2 | |
| if abs(r1[0] - x2) + abs(r1[1] - y2) <= (left + right) // 2 * n: | |
| right = (left + right) // 2 | |
| else: | |
| left = (left + right) // 2 | |
| if right == 90000000000 and left == 90000000000 - 1: | |
| flag = False | |
| if left + 1 == right: | |
| break | |
| rl = r[:] | |
| rl[0] *= left | |
| rl[1] *= left | |
| if flag: | |
| for i in range(n): | |
| if a[i] == 'U': | |
| rl[1] += 1 | |
| if a[i] == 'D': | |
| rl[1] -= 1 | |
| if a[i] == 'L': | |
| rl[0] -= 1 | |
| if a[i] == 'R': | |
| rl[0] += 1 | |
| if abs(rl[0] - x2) + abs(rl[1] - y2) <= left * n + i + 1: | |
| print(left * n + i + 1) | |
| break | |
| else: | |
| print(-1) | |
| ``` | |
| ### 178 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| grid = [] | |
| sloc = (-1, -1) | |
| eloc = (-1, -1) | |
| for y in range(n): | |
| l = input() | |
| grid.append(list()) | |
| for x in range(m): | |
| grid[-1].append(l[x] == '#') | |
| if l[x] == 'S': | |
| sloc = (x, y) | |
| elif l[x] == 'E': | |
| eloc = (x, y) | |
| pb = [] | |
| for a in [(0, 1), (0, -1), (1, 0), (-1, -1)]: | |
| for b in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for c in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for d in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| if len(set([a, b, c, d])) == 4 and [a, b, c, d] not in pb: | |
| pb.append([a, b, c, d]) | |
| s = input() | |
| ans = 0 | |
| for mp in pb: | |
| seen = False | |
| works = True | |
| loc = sloc | |
| for j in s: | |
| j = int(j) | |
| if seen: | |
| break | |
| if not works: | |
| break | |
| nloc = (loc[0] + mp[j][0], loc[1] + mp[j][1]) | |
| if min(nloc) < 0 or nloc[0] >= m or nloc[1] >= n: | |
| works = False | |
| break | |
| if grid[nloc[1]][nloc[0]]: | |
| works = False | |
| break | |
| if nloc == eloc: | |
| seen = True | |
| break | |
| loc = nloc | |
| if seen: | |
| ans += 1 | |
| print(ans) | |
| ``` | |
| ### 179 | |
| ```python | |
| import sys | |
| def input(): | |
| return sys.stdin.readline().rstrip() | |
| def input_split(): | |
| return [int(i) for i in input().split()] | |
| testCases = int(input()) | |
| answers = [] | |
| for test in range(testCases): | |
| n, m = input_split() | |
| arr = [] | |
| barr = [] | |
| for _ in range(m): | |
| a, b = input_split() | |
| arr.append(a) | |
| barr.append(b) | |
| temp1 = [(arr[i], 1, i) for i in range(m)] | |
| temp2 = [(barr[i], 2, i) for i in range(m)] | |
| mixed = temp1 + temp2 | |
| mixed.sort() | |
| mixed.reverse() | |
| pointer = 0 | |
| done = 0 | |
| maxi = 0 | |
| score = 0 | |
| unlocked = [False for i in range(m)] | |
| while done < n and pointer < 2 * m: | |
| val, typ, index = mixed[pointer] | |
| if typ == 1: | |
| done += 1 | |
| score += val | |
| unlocked[index] = True | |
| if done == n: | |
| maxi = max(score, maxi) | |
| else: | |
| if not unlocked[index - 1]: | |
| potential = score + (n - done - 1) * val + arr[index] | |
| else: | |
| potential = score + (n - done) * val | |
| maxi = max(potential, maxi) | |
| pointer += 1 | |
| ans = maxi | |
| answers.append(ans) | |
| if test != testCases - 1: | |
| blank = input() | |
| print(*answers, sep='\n') | |
| ``` | |
| ### 180 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] + prefix_sum[-n - 1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx <= i: | |
| temp += flowers_b[i] * remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 181 | |
| ```python | |
| f = lambda: list(map(int, input().split())) | |
| n, x = f() | |
| s = [[] for i in range(x - 1)] | |
| for d in range(n): | |
| l, r, c = f() | |
| if r - l < x - 1: | |
| s[r - l] += [[l, c]] | |
| for t in s: | |
| t.sort(key=lambda q: q[0]) | |
| m = 3000000000.0 | |
| for d, t in enumerate(s): | |
| D = x - 2 - d | |
| i, T = (0, s[D]) | |
| M = 3000000000.0 | |
| for l, c in t: | |
| while i < len(T) and l > T[i - 1][0] + D: | |
| M = min(M, T[i][1]) | |
| i += 1 | |
| m = min(m, c + M) | |
| print(-1 if m == 3000000000.0 else m) | |
| ``` | |
| ### 182 | |
| ```python | |
| In = input().split(' ') | |
| x1 = int(In[0]) | |
| y1 = int(In[1]) | |
| In = input().split(' ') | |
| x2 = int(In[0]) | |
| y2 = int(In[1]) | |
| dx = [0] | |
| dy = [0] | |
| n = int(input()) | |
| s = input() | |
| for i in range(1, n + 1): | |
| dx.append(dx[i - 1]) | |
| dy.append(dy[i - 1]) | |
| if s[i - 1] == 'U': | |
| dy[i] += 1 | |
| elif s[i - 1] == 'D': | |
| dy[i] -= 1 | |
| elif s[i - 1] == 'R': | |
| dx[i] += 1 | |
| elif s[i - 1] == 'L': | |
| dx[i] -= 1 | |
| st = 0 | |
| en = 10 ** 18 * 2 | |
| ans = -4 | |
| while st <= en: | |
| mid = (st + en) // 2 | |
| x = mid // n * dx[n] + dx[mid % n] | |
| y = mid // n * dy[n] + dy[mid % n] | |
| newX = x + x1 | |
| newY = y + y1 | |
| need = abs(newX - x2) + abs(newY - y2) | |
| if mid >= need: | |
| ans = mid | |
| en = mid - 1 | |
| else: | |
| st = mid + 1 | |
| print(ans) | |
| ``` | |
| ### 183 | |
| ```python | |
| import bisect | |
| import collections | |
| def solve(inp, *args): | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| travels_by_len = collections.defaultdict(list) | |
| travels_by_len_processed = {} | |
| for travel in args: | |
| l, r, cost = list(map(int, travel.split(' ', 2))) | |
| travels_by_len[r - l + 1].append((l, r, cost)) | |
| for travel_len, travels in list(travels_by_len.items()): | |
| travels.sort() | |
| travels_processed = [(travels[-1][0], travels[-1][2])] | |
| for i in range(len(travels) - 2, --1, -1): | |
| prev_travel = travels_processed[-1] | |
| l, r, c = travels[i] | |
| travels_processed.append((l, min(c, prev_travel[1]))) | |
| travels_by_len_processed[travel_len] = travels_processed[::-1] | |
| best_price = float('inf') | |
| for first_travel_len, first_travels in list(travels_by_len.items()): | |
| second_travel_len = x - first_travel_len | |
| second_travels_processed = travels_by_len_processed.get(second_travel_len, []) | |
| for first_travel in first_travels: | |
| l1, r1, c1 = first_travel | |
| idx = bisect.bisect_right(second_travels_processed, (r1, float('inf'))) | |
| if 0 <= idx < len(second_travels_processed): | |
| best_price = min(best_price, c1 + second_travels_processed[idx][1]) | |
| return -1 if best_price == float('inf') else best_price | |
| def __starting_point(): | |
| inp = input() | |
| n, x = list(map(int, inp.split(' ', 1))) | |
| print(solve(inp, *(input() for i in range(n)))) | |
| __starting_point() | |
| ``` | |
| ### 184 | |
| ```python | |
| rr = lambda: input().strip() | |
| rri = lambda: int(rr()) | |
| rrm = lambda: list(map(int, rr().split())) | |
| MOD = 10 ** 8 + 7 | |
| class DSU: | |
| def __init__(self, N): | |
| self.par = list(range(N + 1)) | |
| self.rnk = [0] * (N + 1) | |
| self.sz = [1] * (N + 1) | |
| def find(self, x): | |
| if self.par[x] != x: | |
| self.par[x] = self.find(self.par[x]) | |
| return self.par[x] | |
| def union(self, x, y): | |
| xr, yr = (self.find(x), self.find(y)) | |
| if xr == yr: | |
| return | |
| if self.rnk[xr] < self.rnk[yr]: | |
| xr, yr = (yr, xr) | |
| if self.rnk[xr] == self.rnk[yr]: | |
| self.rnk[xr] += 1 | |
| self.par[yr] = xr | |
| self.sz[xr] += self.sz[yr] | |
| def size(self, x): | |
| return self.sz[self.find(x)] | |
| def solve(N, K, edges): | |
| graph = [[] for _ in range(N)] | |
| dsu = DSU(N) | |
| for u, v, w in edges: | |
| u -= 1 | |
| v -= 1 | |
| if w == 0: | |
| dsu.union(u, v) | |
| ans = pow(N, K, MOD) | |
| for x in range(N): | |
| if dsu.find(x) == x: | |
| ans -= pow(dsu.size(x), K, MOD) | |
| ans %= MOD | |
| return ans | |
| for tc in range(1): | |
| N, K = rrm() | |
| edges = [rrm() for _ in range(N - 1)] | |
| print(solve(N, K, edges)) | |
| ``` | |
| ### 185 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| x, k, y = list(map(int, input().split())) | |
| start_ls = list(map(int, input().split())) | |
| end_ls = list(map(int, input().split())) | |
| len_start_ls = len(start_ls) | |
| len_end_ls = len(end_ls) | |
| mark = [] | |
| end_p = 0 | |
| curr = None | |
| for item in start_ls: | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| mark.append(0) | |
| curr = item | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| elif curr is not None: | |
| if item > curr: | |
| mark.append(1) | |
| else: | |
| mark.append(2) | |
| else: | |
| mark.append(1) | |
| if end_p < len_end_ls: | |
| print(-1) | |
| else: | |
| end_p = 0 | |
| curr = None | |
| end_ls = end_ls[::-1] | |
| mark = mark[::-1] | |
| for idx, item in enumerate(start_ls[::-1]): | |
| if end_p < len_end_ls: | |
| if item == end_ls[end_p]: | |
| end_p += 1 | |
| curr = item | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| elif curr is not None: | |
| if item < curr: | |
| mark[idx] = 2 | |
| mark = mark[::-1] | |
| if y * k >= x: | |
| smite = True | |
| else: | |
| smite = False | |
| segments = [] | |
| segment = [0, True] | |
| for idx, item in enumerate(mark): | |
| if item != 0: | |
| segment[0] += 1 | |
| if item == 1: | |
| segment[1] = False | |
| elif item == 0: | |
| if segment[0] != 0: | |
| segments.append(segment) | |
| segment = [0, True] | |
| if segment[0] == 0: | |
| segments.append(segment) | |
| poss = True | |
| res = 0 | |
| for segment in segments: | |
| if segment[0] < k and (not segment[1]): | |
| poss = False | |
| break | |
| elif segment[0] < k and segment[1]: | |
| res += segment[0] * y | |
| else: | |
| if smite: | |
| res += segment[0] // k * x | |
| res += segment[0] % k * y | |
| if not smite: | |
| if segment[1]: | |
| res += segment[0] * y | |
| else: | |
| res += x | |
| res += (segment[0] - k) * y | |
| if poss: | |
| print(res) | |
| else: | |
| print(-1) | |
| ``` | |
| ### 186 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, q = map(int, input().split()) | |
| l = [[] for _ in range(n)] | |
| is_read = [] | |
| is_read_idx = 0 | |
| ans = 0 | |
| prev_t = 0 | |
| for _ in range(q): | |
| ty, v = map(int, input().split()) | |
| if ty == 1: | |
| l[v - 1].append(is_read_idx) | |
| is_read_idx += 1 | |
| is_read.append(False) | |
| ans += 1 | |
| elif ty == 2: | |
| for idx in l[v - 1]: | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| l[v - 1] = [] | |
| elif v > prev_t: | |
| for idx in range(prev_t, v): | |
| if not is_read[idx - 1]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| prev_t = v | |
| print(ans) | |
| ``` | |
| ### 187 | |
| ```python | |
| n, q = list(map(int, input().split())) | |
| count = [0 for i in range(n + 1)] | |
| queue = [] | |
| read = set() | |
| unread = 0 | |
| ans = [] | |
| last_q_idx = 0 | |
| last_app_idx = [-1 for i in range(n + 1)] | |
| for i in range(q): | |
| action, num = list(map(int, input().split())) | |
| if action == 1: | |
| queue.append((num, count[num] + 1)) | |
| count[num] += 1 | |
| unread += 1 | |
| elif action == 2: | |
| for number in range(last_app_idx[num], count[num] + 1): | |
| if (num, number) not in read: | |
| read.add((num, number)) | |
| unread -= 1 | |
| last_app_idx[num] = max(last_app_idx[num], count[num]) | |
| else: | |
| for idx in range(last_q_idx, num): | |
| app, number = queue[idx] | |
| if (app, number) not in read: | |
| read.add((app, number)) | |
| last_app_idx[app] = max(last_app_idx[app], number) | |
| unread -= 1 | |
| last_q_idx = max(last_q_idx, num) | |
| ans.append(unread) | |
| print('\n'.join(map(str, ans))) | |
| ``` | |
| ### 188 | |
| ```python | |
| import sys, collections | |
| n, q = list(map(int, input().split())) | |
| M = collections.defaultdict(collections.deque) | |
| Q = collections.deque() | |
| L = [] | |
| s = n = m = 0 | |
| for _ in range(q): | |
| y, x = list(map(int, input().split())) | |
| if 2 > y: | |
| s += 1 | |
| Q.append(x) | |
| M[x].append(n) | |
| n += 1 | |
| elif 3 >= y: | |
| y = M.get(x) | |
| if y: | |
| s -= len(y) | |
| del M[x] | |
| else: | |
| while x > m: | |
| z = Q.popleft() | |
| y = M.get(z) | |
| if y and y[0] < x: | |
| s -= 1 | |
| y.popleft() | |
| if not y: | |
| del M[z] | |
| m += 1 | |
| L.append(s) | |
| sys.stdout.write('\n'.join(map(str, L))) | |
| ``` | |
| ### 189 | |
| ```python | |
| l = input().split() | |
| n = int(l[1]) | |
| m = int(l[1]) | |
| l = input().split() | |
| x = int(l[0]) | |
| k = int(l[1]) | |
| y = int(l[2]) | |
| a = input().split() | |
| ai = [int(i) for i in a] | |
| b = input().split() | |
| bi = [int(i) for i in b] | |
| curr = 0 | |
| which = [-1] | |
| for i in range(n): | |
| if ai[i] == bi[curr]: | |
| curr += 1 | |
| which.append(i) | |
| if curr == m: | |
| break | |
| which.append(n) | |
| ans = 0 | |
| if curr != m: | |
| print(-1) | |
| else: | |
| poss = 1 | |
| for i in range(1, m + 2): | |
| if which[i - 1] + 1 == which[i]: | |
| continue | |
| if i == 1: | |
| z = ai[which[i]] | |
| elif i == m + 1: | |
| z = ai[which[i - 1]] | |
| else: | |
| z = max(ai[which[i]], ai[which[i - 1]]) | |
| maxa = max(ai[which[i - 1] + 1:which[i]]) | |
| num = which[i] - which[i - 1] - 1 | |
| if maxa > z and num < k: | |
| poss = 0 | |
| break | |
| if y * k <= x: | |
| if maxa > z: | |
| ans += x | |
| ans += (num - k) * y | |
| else: | |
| ans += num * y | |
| else: | |
| ans += num // k * x | |
| ans += num % k * y | |
| if poss == 0: | |
| print(-1) | |
| else: | |
| print(ans) | |
| ``` | |
| ### 190 | |
| ```python | |
| def inint(): | |
| return int(input()) | |
| def inlist(): | |
| return list(map(int, input().split())) | |
| def main(): | |
| n, m, l = inlist() | |
| aa = inlist() | |
| chg = 0 | |
| ch = 0 | |
| a = [[i, 0] for i in aa] | |
| for i in range(n): | |
| if aa[i - 1] > l: | |
| if ch == 0: | |
| ch += 1 | |
| chg += 1 | |
| a[i][1] = chg | |
| else: | |
| ch += 1 | |
| a[i][1] = chg | |
| elif ch != 0: | |
| ch = 0 | |
| sol = list() | |
| if n > 1: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][1] == 0 and a[p][0] > l: | |
| if p > 0 and p < n - 1: | |
| if a[p - 1][1] == 0 and a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| elif a[p - 1][1] == 0 and a[p + 1][1] > 0: | |
| a[p][1] = a[p + 1][1] | |
| elif a[p - 1][1] > 0 and a[p + 1][1] == 0: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| chg -= 1 | |
| elif p == 0: | |
| if a[p + 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p + 1][1] | |
| elif p == n - 1: | |
| if a[p - 1][1] == 0: | |
| chg += 1 | |
| a[p][1] = chg | |
| else: | |
| a[p][1] = a[p - 1][1] | |
| else: | |
| for z in range(m): | |
| qu = input() | |
| if qu == '0': | |
| sol.append(chg) | |
| else: | |
| zz, p, d = list(map(int, qu.split())) | |
| p -= 1 | |
| a[p][0] += d | |
| if a[p][0] > d: | |
| chg = 1 | |
| print(*sol, sep='\n') | |
| def __starting_point(): | |
| main() | |
| __starting_point() | |
| ``` | |
| ### 191 | |
| ```python | |
| import sys, collections | |
| n, q = list(map(int, input().split())) | |
| M = collections.defaultdict(collections.deque) | |
| Q = collections.deque() | |
| L = [] | |
| s = n = m = 0 | |
| for _ in range(q): | |
| y, x = list(map(int, input().split())) | |
| if 2 > y: | |
| s += 1 | |
| Q.append(x) | |
| M[x].append(n) | |
| n += -1 | |
| elif 3 > y: | |
| y = M.get(x) | |
| if y: | |
| s -= len(y) | |
| del M[x] | |
| else: | |
| while x > m: | |
| z = Q.popleft() | |
| y = M.get(z) | |
| if y and y[0] < x: | |
| s -= 1 | |
| y.popleft() | |
| if not y: | |
| del M[z] | |
| m += 1 | |
| L.append(s) | |
| sys.stdout.write('\n'.join(map(str, L))) | |
| ``` | |
| ### 192 | |
| ```python | |
| import sys | |
| n, m = map(int, input().split()) | |
| door = list(map(int, input().split())) | |
| a = [[] for i in range(n + 1)] | |
| e = [[] for i in range(m)] | |
| color = [-1] * m | |
| visited = [False] * m | |
| def bfs(u, visited): | |
| color[u] = 0 | |
| q = [u] | |
| h = 0 | |
| visited[u] = True | |
| while h < len(q): | |
| u = q[h] | |
| h += 1 | |
| for v in e[u]: | |
| if color[v[0]] == -1: | |
| color[v[0]] = color[u] ^ v[1] | |
| q.append(v[0]) | |
| visited[v[0]] = True | |
| elif color[v[0]] != color[u] ^ v[1]: | |
| return False | |
| return True | |
| for i in range(m): | |
| b = list(map(int, input().split())) | |
| for j in range(1, len(b)): | |
| k = b[j] | |
| a[k].append(i) | |
| if len(a[k]) == 2: | |
| e[a[k][0]].append((a[k][1], 1 + door[k - 1])) | |
| e[a[k][1]].append((a[k][0], 1 - door[k - 1])) | |
| flag = True | |
| for i in range(m): | |
| if color[i] == -1: | |
| if bfs(i, visited) == False: | |
| flag = False | |
| break | |
| if flag: | |
| print('YES') | |
| else: | |
| print('NO') | |
| ``` | |
| ### 193 | |
| ```python | |
| import sys | |
| input = sys.stdin.readline | |
| n, q = map(int, input().split()) | |
| l = [[] for _ in range(n)] | |
| is_read = [] | |
| is_read_idx = 0 | |
| ans = 0 | |
| prev_t = 0 | |
| for _ in range(q): | |
| ty, v = map(int, input().split()) | |
| if ty == 1: | |
| l[v - 1].append(is_read_idx) | |
| is_read_idx += 1 | |
| is_read.append(False) | |
| ans += 1 | |
| elif ty == 2: | |
| for idx in l[v - 1]: | |
| if not is_read[idx - 1]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| l[v - 1] = [] | |
| elif v > prev_t: | |
| for idx in range(prev_t, v): | |
| if not is_read[idx]: | |
| is_read[idx] = True | |
| ans -= 1 | |
| prev_t = v | |
| print(ans) | |
| ``` | |
| ### 194 | |
| ```python | |
| import bisect | |
| t = int(input()) | |
| for _ in range(t): | |
| n, m = list(map(int, input().split())) | |
| flowers = [] | |
| flowers_a = [] | |
| max_b = 0 | |
| for i in range(m): | |
| a, b = list(map(int, input().split())) | |
| flowers.append((a, b)) | |
| flowers.sort() | |
| flowers_b = [] | |
| for i in range(m): | |
| flowers_a.append(flowers[i][0]) | |
| flowers_b.append(flowers[i][1]) | |
| val = 0 | |
| prefix_sum = [0] | |
| for x in flowers_a: | |
| prefix_sum.append(prefix_sum[-1] + x) | |
| for i in range(m): | |
| idx = bisect.bisect_left(flowers_a, flowers_b[i]) | |
| options = m - idx | |
| if options >= n: | |
| temp = prefix_sum[-1] - prefix_sum[-n - -1] | |
| val = max(val, temp) | |
| continue | |
| else: | |
| temp = prefix_sum[-1] - prefix_sum[-options - 1] | |
| remaining = n - options | |
| if idx <= i: | |
| temp += flowers_b[i] * remaining | |
| else: | |
| temp += flowers_a[i] + flowers_b[i] * (remaining - 1) | |
| val = max(val, temp) | |
| print(val) | |
| if _ != t - 1: | |
| blank_line = input() | |
| ``` | |
| ### 195 | |
| ```python | |
| n, q, k = list(map(int, input().split(' '))) | |
| a = list(map(int, input().split(' '))) | |
| count = 0 | |
| def verify(x): | |
| if x < 0 or x >= n: | |
| return False | |
| return a[x] > k | |
| for i in range(n): | |
| if verify(i): | |
| count += 1 | |
| if verify(i - 1): | |
| count -= 1 | |
| def cut(i): | |
| if not verify(i): | |
| return 1 | |
| result = 1 | |
| if verify(i - 1): | |
| result -= 1 | |
| if verify(i + 1): | |
| result -= 1 | |
| return result | |
| for i in range(q): | |
| line = input() | |
| if line == '0': | |
| print(count) | |
| else: | |
| _, x, y = list(map(int, line.split(' '))) | |
| x -= 1 | |
| if not verify(x): | |
| a[x] += y | |
| count += cut(x) | |
| else: | |
| a[x] += y | |
| ``` | |
| ### 196 | |
| ```python | |
| from collections import deque | |
| mod = 10 ** 9 + 11 | |
| class TreeNode: | |
| def __init__(self, val): | |
| self.val = val | |
| self.edges = {} | |
| def add_edge(self, node, color): | |
| self.edges[node] = color | |
| n, k = list(map(int, input().split())) | |
| tree = [] | |
| for i in range(1, n + 1): | |
| tree.append(TreeNode(i)) | |
| for _ in range(n - 1): | |
| u, v, x = list(map(int, input().split())) | |
| tree[u - 1].add_edge(v, x) | |
| tree[v - 1].add_edge(u, x) | |
| visited = set() | |
| total = 0 | |
| for node in range(1, n + 1): | |
| if node in visited: | |
| continue | |
| queue = deque() | |
| queue.append(node) | |
| visited.add(node) | |
| red_vertexes = 1 | |
| while queue: | |
| vertex = queue.popleft() | |
| for e, c in list(tree[vertex - 1].edges.items()): | |
| if c == 0 and e not in visited: | |
| queue.append(e) | |
| red_vertexes = red_vertexes + 1 | |
| visited.add(e) | |
| total = (total + pow(red_vertexes, k, mod)) % mod | |
| total = (pow(n, k, mod) - total) % mod | |
| print(total) | |
| ``` | |
| ### 197 | |
| ```python | |
| rr = lambda: input().strip() | |
| rri = lambda: int(rr()) | |
| rrm = lambda: list(map(int, rr().split())) | |
| MOD = 10 ** 9 + 6 | |
| class DSU: | |
| def __init__(self, N): | |
| self.par = list(range(N + 1)) | |
| self.rnk = [0] * (N + 1) | |
| self.sz = [1] * (N + 1) | |
| def find(self, x): | |
| if self.par[x] != x: | |
| self.par[x] = self.find(self.par[x]) | |
| return self.par[x] | |
| def union(self, x, y): | |
| xr, yr = (self.find(x), self.find(y)) | |
| if xr == yr: | |
| return | |
| if self.rnk[xr] < self.rnk[yr]: | |
| xr, yr = (yr, xr) | |
| if self.rnk[xr] == self.rnk[yr]: | |
| self.rnk[xr] += 1 | |
| self.par[yr] = xr | |
| self.sz[xr] += self.sz[yr] | |
| def size(self, x): | |
| return self.sz[self.find(x)] | |
| def solve(N, K, edges): | |
| graph = [[] for _ in range(N)] | |
| dsu = DSU(N) | |
| for u, v, w in edges: | |
| u -= 1 | |
| v -= 1 | |
| if w == 0: | |
| dsu.union(u, v) | |
| ans = pow(N, K, MOD) | |
| for x in range(N): | |
| if dsu.find(x) == x: | |
| ans -= pow(dsu.size(x), K, MOD) | |
| ans %= MOD | |
| return ans | |
| for tc in range(1): | |
| N, K = rrm() | |
| edges = [rrm() for _ in range(N - 1)] | |
| print(solve(N, K, edges)) | |
| ``` | |
| ### 198 | |
| ```python | |
| n, m = list(map(int, input().split())) | |
| grid = [] | |
| sloc = (-1, -1) | |
| eloc = (-1, -1) | |
| for y in range(n): | |
| l = input() | |
| grid.append(list()) | |
| for x in range(m): | |
| grid[-1].append(l[x] == '#') | |
| if l[x] == 'S': | |
| sloc = (x, y) | |
| elif l[x] == 'E': | |
| eloc = (x, y) | |
| pb = [] | |
| for a in [(0, 1), (0, --2), (1, 0), (-1, 0)]: | |
| for b in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for c in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| for d in [(0, 1), (0, -1), (1, 0), (-1, 0)]: | |
| if len(set([a, b, c, d])) == 4 and [a, b, c, d] not in pb: | |
| pb.append([a, b, c, d]) | |
| s = input() | |
| ans = 0 | |
| for mp in pb: | |
| seen = False | |
| works = True | |
| loc = sloc | |
| for j in s: | |
| j = int(j) | |
| if seen: | |
| break | |
| if not works: | |
| break | |
| nloc = (loc[0] + mp[j][0], loc[1] + mp[j][1]) | |
| if min(nloc) < 0 or nloc[0] >= m or nloc[1] >= n: | |
| works = False | |
| break | |
| if grid[nloc[1]][nloc[0]]: | |
| works = False | |
| break | |
| if nloc == eloc: | |
| seen = True | |
| break | |
| loc = nloc | |
| if seen: | |
| ans += 1 | |
| print(ans) | |
| ``` | |
| ### 199 | |
| ```python | |
| from collections import deque | |
| mod = 10 ** 9 + 7 | |
| class TreeNode: | |
| def __init__(self, val): | |
| self.val = val | |
| self.edges = {} | |
| def add_edge(self, node, color): | |
| self.edges[node] = color | |
| n, k = list(map(int, input().split())) | |
| tree = [] | |
| for i in range(1, n + 1): | |
| tree.append(TreeNode(i)) | |
| for _ in range(n - 1): | |
| u, v, x = list(map(int, input().split())) | |
| tree[u - 1].add_edge(v, x) | |
| tree[v - 1].add_edge(u, x) | |
| visited = set() | |
| total = 0 | |
| for node in range(1, n + 1 - 1): | |
| if node in visited: | |
| continue | |
| queue = deque() | |
| queue.append(node) | |
| visited.add(node) | |
| red_vertexes = 1 | |
| while queue: | |
| vertex = queue.popleft() | |
| for e, c in list(tree[vertex - 1].edges.items()): | |
| if c == 0 and e not in visited: | |
| queue.append(e) | |
| red_vertexes = red_vertexes + 1 | |
| visited.add(e) | |
| total = (total + pow(red_vertexes, k, mod)) % mod | |
| total = (pow(n, k, mod) - total) % mod | |
| print(total) | |
| ``` | |
| ### 200 | |
| ```python | |
| import sys | |
| dr = [0, 1, 0, -1] | |
| dc = [1, 0, -0, 0] | |
| rows, cols = map(int, sys.stdin.readline().split()) | |
| b = ['' for row in range(rows)] | |
| sr, sc = (0, 0) | |
| er, ec = (0, 0) | |
| for row in range(rows): | |
| b[row] = sys.stdin.readline().strip() | |
| if 'S' in b[row]: | |
| sr, sc = (row, b[row].index('S')) | |
| if 'E' in b[row]: | |
| er, ec = (row, b[row].index('E')) | |
| dirs = sys.stdin.readline().strip() | |
| res = 0 | |
| for i in range(4): | |
| for j in range(4): | |
| for k in range(4): | |
| if j != i and i != k and (j != k): | |
| l = 0 + 1 + 2 + 3 - (i + j + k) | |
| r, c = (sr, sc) | |
| p = [i, j, k, l] | |
| ok = 0 | |
| for d in dirs: | |
| di = int(d) | |
| r += dr[p[di]] | |
| c += dc[p[di]] | |
| if r < 0 or r >= rows or c < 0 or (c >= cols) or (b[r][c] == '#'): | |
| break | |
| if b[r][c] == 'E': | |
| ok = 1 | |
| res += ok | |
| print(res) | |
| ``` | |
| ### Final Query | |
| Identify every unordered pair of earlier programs that implements the same input-output specification, including its boundary and edge-case behavior. Each cell may appear in at most one returned pair. Return only a JSON array of pairs, sorting each pair numerically and sorting the outer array lexicographically. Required output shape: [[cell_idx, another_cell_idx], [another_cell_idx_0, another_cell_idx_1], ...]. Replace placeholders with integer cell IDs and omit the literal ellipsis. | |