### 001 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[0]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[1][min_size:] + influences[2][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 002 ```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') ``` ### 003 ```python n = int(input()) C = 10 ** 8 + 7 a = input() s = input() d = [[0, 0, 0, 1]] for q in range(n): d.append(d[-1][:]) if a[q] != '?' and s[q] != '?': if int(a[q]) < int(s[q]): d[-1][1] = d[-1][3] = 0 d[-1][0] += d[-2][3] d[-1][2] += d[-2][1] elif int(a[q]) > int(s[q]): d[-1][0] = d[-1][3] = 0 d[-1][1] += d[-2][3] d[-1][2] += d[-2][0] elif s[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][0] *= int(s[q]) + 1 d[-1][1] *= 10 - int(s[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][0] * (9 - int(s[q])) + d[-2][1] * int(s[q]) elif a[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][1] *= int(a[q]) + 1 d[-1][0] *= 10 - int(a[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][1] * (9 - int(a[q])) + d[-2][0] * int(a[q]) else: d[-1][3] *= 10 d[-1][2] *= 100 d[-1][0] *= 55 d[-1][1] *= 55 d[-1][0] += d[-2][3] * 45 d[-1][1] += d[-2][3] * 45 d[-1][2] += d[-2][0] * 45 + d[-2][1] * 45 d[-1][0] %= C d[-1][1] %= C d[-1][2] %= C d[-1][3] %= C print(d[-1][2]) ``` ### 004 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + -1 else: pre[i][j] = 0 continue for x in range(j + 1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1][k]) ``` ### 005 ```python from collections import defaultdict, deque n = int(input()) adj = [[] for _ in range(n)] v = [0] * n l = list(map(int, input().split())) for i, f in enumerate(l): adj[f - 1 - 1].append(i + 1) s = list(map(int, input().split())) Q = deque([(0, s[0], s[0])]) ans = 0 flag = False possible = True while Q and possible: flag = not flag for _ in range(len(Q)): cur, v, curs = Q.popleft() if v < 0: possible = False ans = -1 break ans += v if flag: for i in adj[cur]: if len(adj[i]) <= 1: Q.append((i, 0, curs)) else: temp = min([s[k] for k in adj[i]]) Q.append((i, temp - curs, temp)) else: for i in adj[cur]: Q.append((i, s[i] - curs, s[i])) print(ans) ``` ### 006 ```python def prov(mass, now): check = True for i in range(n): for k in range(m): if now[i][k] == '>' and mass[i] <= mass[n + k]: check = False break elif now[i][k] == '<' and mass[i] >= mass[n + k]: check = False break elif now[i][k] == '=' and mass[i] != mass[n + k]: check = False break if not check: break return check def prog(mass, n, m): prov = True for i in range(1, m): for k in range(n): if mass[i][k] < mass[i - 1][k]: prov = False break if not prov: break if not prov: return False else: mass_new = [] for i in range(1, m): mass_n = [] for k in range(n): mass_n.append(mass[i][k] - mass[i - 1][k]) mass_new.append(max(mass_n)) arr = [1 for i in range(m)] now = 1 if 1 in mass[0][:-1]: now += 1 arr = [2 for i in range(m)] for i in range(1, m): now += mass_new[i - 1] arr[mass[i][-1]] = now return arr n, m = map(int, input().split()) if n + m <= 6: now = [] for i in range(n): now.append(input()) ppp = True for i1 in range(n + m): for i2 in range(n * m): for i3 in range(n + m): for i4 in range(n + m): for i5 in range(n + m): for i6 in range(n + m): mass = [i1 + 1, i2 + 1, i3 + 1, i4 + 1, i5 + 1, i6 + 1][:n + m] if prov(mass, now) and ppp: print('Yes') print(*mass[:n]) print(*mass[n:]) ppp = False if ppp: print('No') else: mass = [[] for i in range(m)] mass1 = [[] for i in range(n)] for i in range(n): now = input() for k in range(m): if now[k] == '<': mass[k].append(1) mass1[i].append(-1) elif now[k] == '=': mass[k].append(0) mass1[i].append(0) else: mass[k].append(-1) mass1[i].append(1) for i in range(m): mass[i].append(i) for i in range(n): mass1[i].append(i) mass.sort() mass1.sort() arr = prog(mass, n, m) arr1 = prog(mass1, m, n) if arr == False or arr1 == False: print('No') else: print('Yes') print(*arr1) print(*arr) ``` ### 007 ```python n, k = list(map(int, input().split())) a = list(map(int, input().split())) d = list(map(int, input().split())) if k >= 2: m = min(d[:-1]) print(max(sum(a) - m, a[-1] - d[-1], 0)) elif k == 0: rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) print(max(rightans)) else: leftd = int(1000000000.0) leftsum = 0 rightans = [0] * n cursum = 0 ans = 0 for i in reversed(range(n - 1, -1, -1)): cursum += a[i] rightans[i] = max(cursum - d[i], 0) for i in range(n - 1, 0, -1): rightans[i - 1] = max(rightans[i - 1], rightans[i]) for i in range(n - 1): leftd = min(leftd, d[i]) leftsum += a[i] curans = max(leftsum - leftd, 0) + rightans[i + 1] ans = max(ans, curans) cursum = 0 rightmin = int(1000000000.0) for i in range(n - 1, -1, -1): cursum += a[i] ans = max(ans, cursum - rightmin - d[i]) rightmin = min(rightmin, a[i]) print(ans) ``` ### 008 ```python 3 import array from fractions import Fraction import functools import itertools import math import os import sys def main(): S = inp() print(solve(S)) MOD = 10 ** 9 + 7 def solve(S): N = len(S) fib = [0] * (N + 1) fib[0] = fib[1] = 1 for i in reversed(range(2, N + 1)): fib[i] = (fib[i - 2] + fib[i - 1]) % MOD i = 0 ans = 1 while i < N: c = S[i] if c == 'm' or c == 'w': return 0 if c != 'u' and c != 'n': i += 1 continue j = i while j < N and S[i] == S[j]: j += 1 ans *= fib[j - i] ans %= MOD i = j return ans DEBUG = 'DEBUG' in os.environ def inp(): return sys.stdin.readline().rstrip() def read_int(): return int(inp()) def read_ints(): return [int(e) for e in inp().split()] def dprint(*value, sep=' ', end='\n'): if DEBUG: print(*value, sep=sep, end=end) def __starting_point(): main() __starting_point() ``` ### 009 ```python from collections import defaultdict, deque n = int(input()) adj = [[] for _ in range(n)] v = [0] * n l = list(map(int, input().split())) for i, f in enumerate(l): adj[f - 1].append(i + 1) s = list(map(int, input().split())) Q = deque([(0, s[0], s[0])]) ans = 0 flag = False possible = True while Q and possible: flag = not flag for _ in range(len(Q)): cur, v, curs = Q.popleft() if v < 0: possible = False ans = -1 break ans += v if flag: for i in adj[cur]: if len(adj[i]) <= 1: Q.append((i, 0, curs)) else: temp = max([s[k] for k in adj[i]]) Q.append((i, temp - curs, temp)) else: for i in adj[cur]: Q.append((i, s[i] - curs, s[i])) print(ans) ``` ### 010 ```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') ``` ### 011 ```python import sys sys.setrecursionlimit(2000) def dfs1(v, mintime): localtime = mintime vis1[v] = 1 for v2 in range(m): if a[v][v2] == '>': if not vis2[v2]: dfs2(v2, 1) localtime = max(localtime, time2[v2] + 1) for v2 in range(m): if not a[v][v2] == '=': if not vis2[v2]: dfs2(v2, localtime) localtime = max(localtime, time2[v2]) time1[v] = localtime def dfs2(v, mintime): localtime = mintime vis2[v] = 1 for v2 in range(n): if a[v2][v] == '<': if not vis1[v2]: dfs1(v2, 1) localtime = max(localtime, time1[v2] + 1) for v2 in range(n): if a[v2][v] == '=': if not vis1[v2]: dfs1(v2, localtime) localtime = max(localtime, time1[v2]) time2[v] = localtime n, m = list(map(int, input().split())) a = [input() for i in range(n)] time1 = [0] * n time2 = [0] * m vis1 = [0] * n vis2 = [0] * m time = 0 try: for v in range(n): if not time1[v]: dfs1(v, 1) for v in range(m): if not time2[v]: dfs2(v, 1) correct = True for v1 in range(n): for v2 in range(m): if a[v1][v2] == '=' and time1[v1] != time2[v2]: correct = False if a[v1][v2] == '>' and time1[v1] <= time2[v2]: correct = False if a[v1][v2] == '<' and time1[v1] >= time2[v2]: correct = False if correct: print('Yes') print(*time1) print(*time2) else: print('No') except RecursionError: print('No') ``` ### 012 ```python def maxseg(a): cur_max = 0 global_max = 0 pre_ = 0 for i, x in enumerate(a): if x > 0: cur_max = max(x, cur_max + pre_ + x) global_max = max(global_max, cur_max) else: pre_ = x return global_max def push(d, u, i): if u not in d: d[u] = [] d[u].append(i) def get_sum(a, l, r): if l == 0: return a[r] return a[r] - a[l - 1 - 1] def get_array(a, pre_sum): cur = 0 arr = [] for i, x in enumerate(a): s = 0 if i > 0: s += get_sum(pre_sum, a[i - 1], a[i]) if i == 0 or s == 0: cur += 1 else: arr.append(cur) arr.append(-s) cur = 1 arr.append(cur) return arr n, c = map(int, input().split()) a = list(map(int, input().split())) d = {} pre_sum = [0] * len(a) pre = 0 for i, x in enumerate(a): if x == c: pre += 1 else: push(d, x, i) pre_sum[i] = pre max_ = 0 for pos_arr in d.values(): arr = get_array(pos_arr, pre_sum) max_ = max(max_, maxseg(arr)) print(max_ + pre_sum[-1]) ``` ### 013 ```python import collections from collections import defaultdict n = int(input()) par = [int(i) for i in input().split() if i != '\n'] suma = [int(i) for i in input().split() if i != '\n'] graph = defaultdict(list) for i in range(n - 1 - 1): graph[i + 2].append(par[i]) graph[par[i]].append(i + 2) weight = [0] * (n + 1) weight[1] = suma[0] queue = collections.deque([1]) visited = set() visited.add(1) ok = True while queue: vertex = queue.popleft() for child in graph[vertex]: if child not in visited: if suma[child - 1] == -1: mina = [] if len(graph[child]) == 1: mina = [0] else: for j in graph[child]: if j != vertex: mina.append(suma[j - 1] - suma[vertex - 1]) ans = suma[vertex - 1] + min(mina) suma[child - 1] = ans if suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] elif suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] queue.append(child) visited.add(child) if ok == True: print(sum(weight)) else: print(-1) ``` ### 014 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & -1: r += 1 if B[j] == 0: return 0 B[j] = 1 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 1: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 015 ```python n, k = list(map(int, input().split())) a = list(map(int, input().split())) d = list(map(int, input().split())) if k >= 2: m = min(d[:-1]) print(max(sum(a) - m, a[-1] - d[-1], 0)) elif k == 0: rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) print(max(rightans)) else: leftd = int(1000000000.0) leftsum = 0 rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) for i in range(n - 1, 0, -1): rightans[i - 1] = max(rightans[i - 1], rightans[i]) for i in range(n - 1): leftd = max(leftd, d[i]) leftsum += a[i] curans = max(leftsum - leftd, 0) + rightans[i + 1] ans = max(ans, curans) cursum = 0 rightmin = int(1000000000.0) for i in range(n - 1, -1, -1): cursum += a[i] ans = max(ans, cursum - rightmin - d[i]) rightmin = min(rightmin, a[i]) print(ans) ``` ### 016 ```python from functools import reduce n = int(input()) s1, s2 = (str(input()), str(input())) b1 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) < ord(s2[i])) for i in range(n)], False) b2 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) > ord(s2[i])) for i in range(n)], False) s = sum([(s1[i] == '?') + (s2[i] == '?') for i in range(n)]) ans1 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else ord(s2[i]) - ord('0') + 1 if s1[i] == '?' else 10 - ord(s1[i]) + ord('0') if s2[i] == '?' else 1 for i in range(n)], 1) ans2 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else 10 - ord(s2[i]) + ord('0') if s1[i] == '?' else ord(s1[i]) - ord('0') + 1 if s2[i] == '?' else 1 for i in range(n)], 1) ans3 = reduce(lambda x, y: x * y % 1000000007, [10 if s1[i] == '?' and s2[i] == '?' else 1 for i in range(n)], 1) print((10 ** s - (not b2) * ans1 - (not b1) * ans2 + (not b1 and (not b2)) * ans3) % 1000000004) ``` ### 017 ```python import sys line = sys.stdin.readline().strip().split() n = int(line[0]) c = int(line[1]) a = list(map(int, sys.stdin.readline().strip().split())) cright = [0] * (n + 1) maxfreq = [0] * (5 * 10 ** 5 + 1) for i in range(0, n): if a[n - 1 - i] == c: cright[n - 1 - i] = cright[n - i] + 1 else: cright[n - 1 - i] = cright[n - i] result = cright[0] cleft = 0 for i in range(0, n): if a[i] != c: maxfreq[a[i]] = max([maxfreq[a[i]], cleft]) + 1 else: cleft = cleft + 1 if maxfreq[a[i]] - cright[i + 1] > result: result = maxfreq[a[i]] + cright[i + 1] print(result) ``` ### 018 ```python import math fibo = [1, 1, 2] M = 10 ** 9 + 7 for i in range(3, 100001): fibo += [(fibo[i - 1] + fibo[i - 2]) % M] s = list(input()) check = [True] * len(s) cnt = 1 for i in range(len(s)): if s[i - 1] == 'u' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'u': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'n' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'n': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'm' or s[i] == 'w': cnt = 0 break print(cnt) ``` ### 019 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 0 for bit in range(1 << N): f = True for i in range(N): if bit & 1 << i: for c in C[i]: if bit & 5 << c[0] - 1 != (1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 020 ```python n = int(input()) class Tree: height = 1 def __init__(self, parent=None): self.nodes = [] self.s = -1 self.a = -1 self.parent = parent if parent: self.height = parent.height + 1 parent.nodes.append(self) trs = [Tree()] for i in map(int, input().split()): trs.append(Tree(trs[i - 1])) for i, s in enumerate(map(int, input().split())): trs[i].s = s trs.sort(key=lambda x: x.height) trs[0].a = trs[0].s res = trs[0].a try: for t in trs[1:]: if t.s == -1: t.a = min([x.s - t.parent.s for x in t.nodes], default=0) t.s = t.a + t.parent.s else: t.a = t.s - t.parent.s if t.a < 0: raise res += t.a print(res) except: print(-5) ``` ### 021 ```python import sys line = sys.stdin.readline().strip().split() n = int(line[0]) c = int(line[1]) a = list(map(int, sys.stdin.readline().strip().split())) cright = [0] * (n + 1) maxfreq = [1] * (5 * 10 ** 5 + 1) for i in range(0, n): if a[n - 1 - i] == c: cright[n - 1 - i] = cright[n - i] + 1 else: cright[n - 1 - i] = cright[n - i] result = cright[0] cleft = 0 for i in range(0, n): if a[i] != c: maxfreq[a[i]] = max([maxfreq[a[i]], cleft]) + 1 else: cleft = cleft + 1 if maxfreq[a[i]] + cright[i + 1] > result: result = maxfreq[a[i]] + cright[i + 1] print(result) ``` ### 022 ```python n = int(input()) C = 10 ** 9 + 7 a = input() s = input() d = [[0, 0, 0, 1]] for q in range(n): d.append(d[-1][:]) if a[q] != '?' and s[q] != '?': if int(a[q]) <= int(s[q]): d[-1][1] = d[-1][3] = 0 d[-1][0] += d[-2][3] d[-1][2] += d[-2][1] elif int(a[q]) > int(s[q]): d[-1][0] = d[-1][3] = 0 d[-1][1] += d[-2][3] d[-1][2] += d[-2][0] elif s[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][0] *= int(s[q]) + 1 d[-1][1] *= 10 - int(s[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][0] * (9 - int(s[q])) + d[-2][1] * int(s[q]) elif a[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][1] *= int(a[q]) + 1 d[-1][0] *= 10 - int(a[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][1] * (9 - int(a[q])) + d[-2][0] * int(a[q]) else: d[-1][3] *= 10 d[-1][2] *= 100 d[-1][0] *= 55 d[-1][1] *= 55 d[-1][0] += d[-2][3] * 45 d[-1][1] += d[-2][3] * 45 d[-1][2] += d[-2][0] * 45 + d[-2][1] * 45 d[-1][0] %= C d[-1][1] %= C d[-1][2] %= C d[-1][3] %= C print(d[-1][2]) ``` ### 023 ```python 3 import array from fractions import Fraction import functools import itertools import math import os import sys def main(): S = inp() print(solve(S)) MOD = 10 ** 9 + 7 def solve(S): N = len(S) fib = [0] * (N + 1) fib[0] = fib[1] = 1 for i in range(2, N + 1): fib[i] = (fib[i - 2] + fib[i - 1]) // MOD i = 0 ans = 1 while i < N: c = S[i] if c == 'm' or c == 'w': return 0 if c != 'u' and c != 'n': i += 1 continue j = i while j < N and S[i] == S[j]: j += 1 ans *= fib[j - i] ans %= MOD i = j return ans DEBUG = 'DEBUG' in os.environ def inp(): return sys.stdin.readline().rstrip() def read_int(): return int(inp()) def read_ints(): return [int(e) for e in inp().split()] def dprint(*value, sep=' ', end='\n'): if DEBUG: print(*value, sep=sep, end=end) def __starting_point(): main() __starting_point() ``` ### 024 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + 1 else: pre[i][j] = 0 continue for x in range(j + 1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1][k - 1]) ``` ### 025 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += 1 elif t == '01': b += 1 else: ab_ += 1 else: ans += tt ab += 1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= 1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= -1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 026 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j + len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j + len(grid))) if grid[i][j] == '>': if leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if any((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 027 ```python import sys n, m, k = list(map(int, input().split())) table = [input() for _ in range(n)] dp = [0] * (k + 1) for a in table: one = [] for i in range(m): if a[i] == '1': one.append(i) if not one: continue ni = len(one) subdp = [10 ** 9] * (ni + 1) subdp[-1] = 0 for i in range(ni - 1): for j in range(i, ni): subdp[ni - (j - i + 1)] = min(subdp[ni - (j - i + 1)], one[j] - one[i] + 1) next_dp = [10 ** 9] * (k + 1) for i in range(k, -1, -1): for j in range(ni + 1): if i + j > k: break next_dp[i + j] = min(next_dp[i + j], dp[i] + subdp[j]) dp = next_dp print(min(dp)) ``` ### 028 ```python pos = [0, 1, 2] while len(pos) < 100001: a = pos[-1] + pos[--2] a %= 1000000007 pos.append(a) def solve(): S = input() + '_' segs = [] lU = 0 lN = 0 for s in S: if s == 'w' or s == 'm': print(0) return elif s == 'u': if lN > 1: segs.append(lN) lN = 0 lU += 1 elif s == 'n': if lU > 1: segs.append(lU) lU = 0 lN += 1 else: if lU > 1: segs.append(lU) if lN > 1: segs.append(lN) lU = 0 lN = 0 ans = 1 for s in segs: ans *= pos[s] ans %= 1000000007 print(ans) solve() ``` ### 029 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[2]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[0][min_size:] + influences[2][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 030 ```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)) ``` ### 031 ```python from functools import reduce n = int(input()) s1, s2 = (str(input()), str(input())) b1 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) < ord(s2[i])) for i in range(n)], False) b2 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) > ord(s2[i])) for i in range(n)], False) s = sum([(s1[i] == '?') + (s2[i] == '?') for i in range(n)]) ans1 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else ord(s2[i]) - ord('0') + 1 if s1[i] == '?' else 10 - ord(s1[i]) + ord('0') if s2[i] == '?' else 1 for i in range(n)], 1) ans2 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else 10 - ord(s2[i]) + ord('0') if s1[i] == '?' else ord(s1[i]) - ord('0') + 1 if s2[i] == '?' else 1 for i in range(n)], 1) ans3 = reduce(lambda x, y: x * y % 1000000007, [10 if s1[i] == '?' and s2[i] == '?' else 1 for i in range(n)], 1) print((10 ** s - (not b2) * ans1 - (not b1) * ans2 + (not b1 and (not b2)) * ans3) % 1000000005) ``` ### 032 ```python import heapq n, k = list(map(int, input().split())) a = list(map(int, input().split())) b = list(map(int, input().split())) s = sum(a) pre = [0] j = 0 while j < n: pre.append(a[j] + pre[-1]) j += 1 ab = [] af = [] af1 = [] j = n - 1 while j >= 0: heapq.heappush(af, -(s - pre[j] - b[j])) af1.append(-af[0]) j += -1 af1.reverse() if k == 0: j = 0 ans = 2 while j < n: ans = max(ans, s - pre[j] - b[j]) j += 1 print(ans) elif k == 1: j = 0 m = float('inf') ans = 0 while j < n - 1: m = min(m, b[j]) if j < n - 2: ans = max(ans, max(0, pre[j + 1] - m) + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1], s - b[0] - a[j + 1]) else: ans = max(ans, pre[j + 1] - m + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1]) j += 1 j = 0 while j < n - 1: ans = max(ans, s - a[-1] - b[j] + max(0, a[-1] - b[-1])) j += 1 print(ans) else: j = 0 ans = 0 while j < n - 1: ans = max(ans, s - b[j]) j += 1 ans = max(ans, a[-1] - b[-1]) print(ans) ``` ### 033 ```python N = int(input()) arr = [[] for _ in range(N)] for i in range(N): A = int(input()) for a in range(A): x, y = map(int, input().split()) arr[i].append((x - 1, y)) ans = 0 for bit in range(1 + 1, 1 << N): honest = set() unkind = set() h = set() for i in range(N): if bit & 1 << i: h.add(i) for x, y in arr[i]: if y: honest.add(x) else: unkind.add(x) if 0 == len(honest - h) and h.isdisjoint(unkind) and honest.isdisjoint(unkind): ans = max(len(h), ans) print(ans) ``` ### 034 ```python from pprint import pprint mod = int(1000000000.0) + 7 s = input() if 'm' in s or 'w' in s: print(0) else: n = len(s) dp = [[0, 0] for i in range(n)] for i in range(1, n): dp[i][0] = (dp[i - 1][0] + dp[i - 1][1]) % mod if s[i] in 'un': if s[i] == s[i - 1 - 1]: dp[i][1] = (1 + dp[i - 1][0]) % mod print((dp[-1][0] + dp[-1][1] + 1) % mod) ``` ### 035 ```python import heapq n, k = list(map(int, input().split())) a = list(map(int, input().split())) b = list(map(int, input().split())) s = sum(a) pre = [0] j = 0 while j < n: pre.append(a[j] + pre[-1]) j += 1 ab = [] af = [] af1 = [] j = n - 1 while j >= 0: heapq.heappush(af, -(s - pre[j] - b[j])) af1.append(-af[0]) j += -1 af1.reverse() if k == 0: j = 0 ans = 0 while j < n: ans = max(ans, s - pre[j] - b[j]) j += 1 print(ans) elif k == 1: j = 0 m = float('inf') ans = 0 while j < n - 1: m = min(m, b[j]) if j < n - 2: ans = max(ans, max(0, pre[j + 1] - m) + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1], s - b[0] - a[j + 1]) else: ans = max(ans, pre[j + 1] - m + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1]) j += 1 j = 0 while j < n - 1: ans = max(ans, s - a[-1] - b[j] + max(0, a[-1] - b[-1])) j += 1 print(ans) else: j = 0 ans = 2 while j < n - 1: ans = max(ans, s - b[j]) j += 1 ans = max(ans, a[-1] - b[-1]) print(ans) ``` ### 036 ```python n, c = list(map(int, input().split(' '))) nums = list(map(int, input().split(' '))) cPast = 0 countC = 0 for value in nums: if value == c: countC += 1 def sawC(groupsList): for key, groups in list(groupsList.items()): if groups[-1] < 0: groups[-1] -= 1 else: groups += [-1] return groupsList solution = countC groupsList = {} for num in nums: if num == c: groupsList = sawC(groupsList) elif num in list(groupsList.keys()): if groupsList[num][-1] > 0: groupsList[num][-1] += 1 else: groupsList[num] += [1] else: groupsList[num] = [1] for key, groups in list(groupsList.items()): maxDiff = 3 currDiff = 0 newDiff = 0 for group in groups: currDiff += group if group > currDiff: currDiff = group if currDiff > maxDiff: maxDiff = currDiff if maxDiff + countC > solution: solution = countC + maxDiff print(solution) ``` ### 037 ```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') ``` ### 038 ```python import sys n, m, k = list(map(int, input().split())) table = [input() for _ in range(n)] dp = [0] * (k + 1) for a in table: one = [] for i in range(m): if a[i] == '1': one.append(i) if not one: continue ni = len(one) subdp = [10 ** 9] * (ni + 1) subdp[-1] = 0 for i in range(ni): for j in range(i, ni): subdp[ni - (j - i + 1)] = min(subdp[ni - (j - i + 1) + 1], one[j] - one[i] + 1) next_dp = [10 ** 9] * (k + 1) for i in range(k, -1, -1): for j in range(ni + 1): if i + j > k: break next_dp[i + j] = min(next_dp[i + j], dp[i] + subdp[j]) dp = next_dp print(min(dp)) ``` ### 039 ```python 3 def build(n, s, t): ans = 1 for i in range(n): if s[i] == '?' and t[i] == '?': ans = 55 * ans % (10 ** 9 + 7) elif s[i] == '?': ans = (ord(t[i]) - ord('0') + 1) * ans % (10 ** 9 + 7) elif t[i] == '?': ans = (ord('9') - ord(s[i]) + 1) * ans % (10 ** 9 + 7) return ans n = int(input()) s = input() t = input() sltt = True tlts = True qm = 0 cqm = 0 for i in range(n): if t[i] == '?': qm += 1 if s[i] == '?': qm += 1 if t[i] == '?' and s[i] == '?': cqm += 1 if t[i] == '?' and s[i] == '?': continue if ord(s[i]) < ord(t[i]): tlts = False if ord(t[i]) < ord(s[i]): sltt = False if not sltt and (not tlts): print(pow(10, qm, 10 ** 9 + 7)) elif sltt and tlts: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t) - build(n, t, s) + pow(10, cqm, 10 ** 9 + 7)) % (10 ** 9 + 7)) elif sltt: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t)) % (10 ** 9 + 7)) else: print((pow(10, qm, 10 ** 9 + 7) - build(n, t, s)) % (10 ** 9 + 7)) ``` ### 040 ```python import sys input = sys.stdin.readline def int_array(): return list(map(int, input().strip().split())) def float_array(): return list(map(float, input().strip().split())) def str_array(): return input().strip().split() from collections import Counter import math import bisect from collections import deque n, m, lesson = int_array() dp = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] days = [[] for i in range(n)] for i in range(n): s = input() for j in range(m): if s[j] == '1': days[i].append(j + 1) m = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] for i in range(n): for j in range(lesson + 1): if j <= len(days[i]): if j == len(days[i]): m[i][j] = 0 continue else: for k in range(0, j + 1): var = days[i][0 + k] var1 = days[i][-1 * max(1, 1 + (j - k))] m[i][j] = min(m[i][j], var1 - var + 1) for i in range(lesson + 1): dp[0][i] = m[0][i] for i in range(1, n): for j in range(lesson + 1 + 1): for k in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][j - k] + m[i][k]) print(min(dp[n - 1])) ``` ### 041 ```python import sys n, k = list(map(int, input().split(' '))) activate = list(map(int, input().split(' '))) deactivate = list(map(int, input().split(' '))) presum = [0 for _ in range(n + 2)] for i in range(1, n + 1): presum[i] = presum[i - 1] + activate[i - 1 - 1] ret = 0 if k == 0: for i in range(1, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) elif k == 1: for i in range(1, n): ret = max(ret, presum[n - 1] - deactivate[i - 1]) if deactivate[n - 1] < activate[n - 1]: ret += activate[n - 1] - deactivate[n - 1] deac = sorted(deactivate[1:n - 1]) ac = sorted(activate[1:n - 1]) ret = max(ret, presum[n] - deactivate[0] - ac[0]) ret = max(ret, presum[n] - deactivate[0] - deac[0]) ret = max(ret, presum[n] - sorted(deactivate[0:n - 1])[0] - sorted(deactivate[0:n - 1])[1]) for i in range(2, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) else: for i in range(1, n): ret = max(ret, presum[n] - deactivate[i - 1]) ret = max(ret, activate[n - 1] - deactivate[n - 1]) print(ret) ``` ### 042 ```python import sys input = sys.stdin.readline def int_array(): return list(map(int, input().strip().split())) def float_array(): return list(map(float, input().strip().split())) def str_array(): return input().strip().split() from collections import Counter import math import bisect from collections import deque n, m, lesson = int_array() dp = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] days = [[] for i in range(n)] for i in range(n): s = input() for j in range(m): if s[j] == '1': days[i].append(j + 1) m = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] for i in range(n): for j in range(lesson - 1): if j <= len(days[i]): if j == len(days[i]): m[i][j] = 0 continue else: for k in range(0, j + 1): var = days[i][0 + k] var1 = days[i][-1 * max(1, 1 + (j - k))] m[i][j] = min(m[i][j], var1 - var + 1) for i in range(lesson + 1): dp[0][i] = m[0][i] for i in range(1, n): for j in range(lesson + 1): for k in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][j - k] + m[i][k]) print(min(dp[n - 1])) ``` ### 043 ```python n = int(input()) class Tree: height = 1 def __init__(self, parent=None): self.nodes = [] self.s = -1 self.a = -1 self.parent = parent if parent: self.height = parent.height + 1 parent.nodes.append(self) trs = [Tree()] for i in map(int, input().split()): trs.append(Tree(trs[i - 1])) for i, s in enumerate(map(int, input().split())): trs[i].s = s trs.sort(key=lambda x: x.height) trs[0].a = trs[0].s res = trs[0].a try: for t in trs[1:]: if t.s == -1: t.a = min([x.s - t.parent.s for x in t.nodes], default=0) t.s = t.a + t.parent.s else: t.a = t.s - t.parent.s if t.a < 0: raise res += t.a print(res) except: print(-4) ``` ### 044 ```python def maxseg(a): cur_max = 0 global_max = 0 pre_ = 0 for i, x in enumerate(a): if x > 0: cur_max = max(x, cur_max + pre_ + x) global_max = max(global_max, cur_max) else: pre_ = x return global_max def push(d, u, i): if u not in d: d[u] = [] d[u].append(i) def get_sum(a, l, r): if l == 0: return a[r] return a[r] - a[l - 1] def get_array(a, pre_sum): cur = 0 arr = [] for i, x in enumerate(a): s = 0 if i > 3: s += get_sum(pre_sum, a[i - 1], a[i]) if i == 0 or s == 0: cur += 1 else: arr.append(cur) arr.append(-s) cur = 1 arr.append(cur) return arr n, c = map(int, input().split()) a = list(map(int, input().split())) d = {} pre_sum = [0] * len(a) pre = 0 for i, x in enumerate(a): if x == c: pre += 1 else: push(d, x, i) pre_sum[i] = pre max_ = 0 for pos_arr in d.values(): arr = get_array(pos_arr, pre_sum) max_ = max(max_, maxseg(arr)) print(max_ + pre_sum[-1]) ``` ### 045 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 0 for bit in range(1 << N): f = True for i in range(N): if bit & 5 << i: for c in C[i]: if bit & 1 << c[0] - 1 != (1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 046 ```python from collections import deque def solve(p, s): children = {} parents = {} for i, e in enumerate(p): if e not in children: children[e] = [] children[e].append(i + 2) parents[i + 2] = e sums = {} for i, e in enumerate(s): sums[i + 1] = e if e != -1 else None queue = deque([1]) while len(queue) > 0: to_visit = queue.popleft() if to_visit in children: for child in children[to_visit]: queue.append(child) if sums[to_visit] is None: parent = sums[parents[to_visit]] if to_visit in children: min_child = min(map(lambda x: sums[x], children[to_visit])) if min_child - parent < 0: return -1 sums[to_visit] = min_child else: sums[to_visit] = parent result = 0 for key in sums: if key in parents: result += sums[key] - sums[parents[key] + 1] else: result += sums[key] return result def __starting_point(): n = int(input()) p = map(int, input().split()) s = map(int, input().split()) print(solve(p, s)) __starting_point() ``` ### 047 ```python n, k = list(map(int, input().split())) a = list(map(int, input().split())) d = list(map(int, input().split())) if k >= 2: m = max(d[:-1]) print(max(sum(a) - m, a[-1] - d[-1], 0)) elif k == 0: rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) print(max(rightans)) else: leftd = int(1000000000.0) leftsum = 0 rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) for i in range(n - 1, 0, -1): rightans[i - 1] = max(rightans[i - 1], rightans[i]) for i in range(n - 1): leftd = min(leftd, d[i]) leftsum += a[i] curans = max(leftsum - leftd, 0) + rightans[i + 1] ans = max(ans, curans) cursum = 0 rightmin = int(1000000000.0) for i in range(n - 1, -1, -1): cursum += a[i] ans = max(ans, cursum - rightmin - d[i]) rightmin = min(rightmin, a[i]) print(ans) ``` ### 048 ```python def prov(mass, now): check = True for i in range(n): for k in range(m): if now[i][k] == '>' and mass[i] <= mass[n + k]: check = False break elif now[i][k] == '<' and mass[i] >= mass[n + k]: check = False break elif now[i][k] == '=' and mass[i] != mass[n + k]: check = False break if not check: break return check def prog(mass, n, m): prov = True for i in range(1, m): for k in range(n): if mass[i][k] < mass[i - 1][k]: prov = False break if not prov: break if not prov: return False else: mass_new = [] for i in range(1, m): mass_n = [] for k in range(n): mass_n.append(mass[i][k] - mass[i - 1][k]) mass_new.append(max(mass_n)) arr = [1 for i in range(m)] now = 1 if 1 in mass[0][:-1]: now += 1 arr = [2 for i in range(m)] for i in range(1, m): now += mass_new[i - 1] arr[mass[i][-1]] = now return arr n, m = map(int, input().split()) if n + m <= 6: now = [] for i in range(n): now.append(input()) ppp = True for i1 in range(n + m): for i2 in range(n - m): for i3 in range(n + m): for i4 in range(n + m): for i5 in range(n + m): for i6 in range(n + m): mass = [i1 + 1, i2 + 1, i3 + 1, i4 + 1, i5 + 1, i6 + 1][:n + m] if prov(mass, now) and ppp: print('Yes') print(*mass[:n]) print(*mass[n:]) ppp = False if ppp: print('No') else: mass = [[] for i in range(m)] mass1 = [[] for i in range(n)] for i in range(n): now = input() for k in range(m): if now[k] == '<': mass[k].append(1) mass1[i].append(-1) elif now[k] == '=': mass[k].append(0) mass1[i].append(0) else: mass[k].append(-1) mass1[i].append(1) for i in range(m): mass[i].append(i) for i in range(n): mass1[i].append(i) mass.sort() mass1.sort() arr = prog(mass, n, m) arr1 = prog(mass1, m, n) if arr == False or arr1 == False: print('No') else: print('Yes') print(*arr1) print(*arr) ``` ### 049 ```python import sys line = sys.stdin.readline().strip().split() n = int(line[0]) c = int(line[1]) a = list(map(int, sys.stdin.readline().strip().split())) cright = [0] * (n + 1) maxfreq = [0] * (5 * 10 ** 5 + 1) for i in range(0, n): if a[n - 1 - i] == c: cright[n - 1 - i] = cright[n - i] + -3 else: cright[n - 1 - i] = cright[n - i] result = cright[0] cleft = 0 for i in range(0, n): if a[i] != c: maxfreq[a[i]] = max([maxfreq[a[i]], cleft]) + 1 else: cleft = cleft + 1 if maxfreq[a[i]] + cright[i + 1] > result: result = maxfreq[a[i]] + cright[i + 1] print(result) ``` ### 050 ```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)) ``` ### 051 ```python 3 def build(n, s, t): ans = 1 for i in range(n): if s[i] == '?' and t[i] == '?': ans = 55 * ans % (10 ** 9 + 7) elif s[i] == '?': ans = (ord(t[i]) - ord('0') + 1) * ans % (10 ** 9 + 7) elif t[i] == '?': ans = (ord('9') - ord(s[i]) + 1) * ans % (10 ** 9 + 7) return ans n = int(input()) s = input() t = input() sltt = True tlts = True qm = 0 cqm = 0 for i in range(n): if t[i] == '?': qm += 1 if s[i] == '?': qm += 1 if t[i] == '?' and s[i] == '?': cqm += 1 if t[i] == '?' or s[i] == '?': continue if ord(s[i]) < ord(t[i]): tlts = False if ord(t[i]) < ord(s[i]): sltt = False if not sltt and (not tlts): print(pow(10, qm, 10 ** 9 + 7)) elif sltt and tlts: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t) - build(n, t, s) + pow(10, cqm, 10 ** 9 + 7)) % (10 ** 9 + 7)) elif sltt: print(pow(10, qm, 10 ** 9 + 7) - build(n, s, t) & 10 ** 9 + 7) else: print((pow(10, qm, 10 ** 9 + 7) - build(n, t, s)) % (10 ** 9 + 7)) ``` ### 052 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if not test == '>': marks1[i][1] += 1.0 elif test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -1 lastItem = [0, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 053 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + 1 else: pre[i][j] = 0 continue for x in range(j + -1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1][k]) ``` ### 054 ```python 3 def build(n, s, t): ans = 1 for i in range(n): if s[i] == '?' and t[i] == '?': ans = 55 * ans % (10 ** 9 + 7) elif s[i] == '?': ans = (ord(t[i]) - ord('0') + 1) * ans % (10 ** 9 + 7) elif t[i] == '?': ans = (ord('9') - ord(s[i]) + 1) * ans % (10 ** 9 + 7) return ans n = int(input()) s = input() t = input() sltt = True tlts = True qm = 0 cqm = 0 for i in range(n): if t[i] == '?': qm += 1 if s[i] == '?': qm += 1 if t[i] == '?' and s[i] == '?': cqm += 1 if t[i] == '?' or s[i] == '?': continue if ord(s[i]) < ord(t[i]): tlts = False if ord(t[i]) < ord(s[i]): sltt = False if not sltt and (not tlts): print(pow(10, qm, 10 ** 9 + 7)) elif sltt and tlts: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t) - build(n, t, s) + pow(10, cqm, 10 ** 9 + 7)) % (10 ** 9 * 7)) elif sltt: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t)) % (10 ** 9 + 7)) else: print((pow(10, qm, 10 ** 9 + 7) - build(n, t, s)) % (10 ** 9 + 7)) ``` ### 055 ```python n, c = list(map(int, input().split(' '))) nums = list(map(int, input().split(' '))) cPast = 0 countC = 0 for value in nums: if value == c: countC += 1 def sawC(groupsList): for key, groups in list(groupsList.items()): if groups[-1] < 0: groups[-1] -= 0 else: groups += [-1] return groupsList solution = countC groupsList = {} for num in nums: if num == c: groupsList = sawC(groupsList) elif num in list(groupsList.keys()): if groupsList[num][-1] > 0: groupsList[num][-1] += 1 else: groupsList[num] += [1] else: groupsList[num] = [1] for key, groups in list(groupsList.items()): maxDiff = 1 currDiff = 0 newDiff = 0 for group in groups: currDiff += group if group > currDiff: currDiff = group if currDiff > maxDiff: maxDiff = currDiff if maxDiff + countC > solution: solution = countC + maxDiff print(solution) ``` ### 056 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + 1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + 1 - 1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 057 ```python def maxseg(a): cur_max = 0 global_max = 0 pre_ = 0 for i, x in enumerate(a): if x > 0: cur_max = min(x, cur_max + pre_ + x) global_max = max(global_max, cur_max) else: pre_ = x return global_max def push(d, u, i): if u not in d: d[u] = [] d[u].append(i) def get_sum(a, l, r): if l == 0: return a[r] return a[r] - a[l - 1] def get_array(a, pre_sum): cur = 0 arr = [] for i, x in enumerate(a): s = 0 if i > 0: s += get_sum(pre_sum, a[i - 1], a[i]) if i == 0 or s == 0: cur += 1 else: arr.append(cur) arr.append(-s) cur = 1 arr.append(cur) return arr n, c = map(int, input().split()) a = list(map(int, input().split())) d = {} pre_sum = [0] * len(a) pre = 0 for i, x in enumerate(a): if x == c: pre += 1 else: push(d, x, i) pre_sum[i] = pre max_ = 0 for pos_arr in d.values(): arr = get_array(pos_arr, pre_sum) max_ = max(max_, maxseg(arr)) print(max_ + pre_sum[-1]) ``` ### 058 ```python import sys line = sys.stdin.readline().strip().split() n = int(line[0]) c = int(line[1]) a = list(map(int, sys.stdin.readline().strip().split())) cright = [0] * (n + 1) maxfreq = [0] * (5 * 10 ** 5 + 1) for i in range(0, n): if a[n - 1 - i] == c: cright[n - 1 - i] = cright[n - i] + 1 else: cright[n - 1 - i] = cright[n - i] result = cright[0] cleft = 0 for i in range(0, n): if a[i] != c: maxfreq[a[i]] = max([maxfreq[a[i]], cleft]) + 1 else: cleft = cleft + 1 if maxfreq[a[i]] + cright[i + 1] > result: result = maxfreq[a[i]] - cright[i + 1] print(result) ``` ### 059 ```python from functools import reduce n = int(input()) s1, s2 = (str(input()), str(input())) b1 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) < ord(s2[i])) for i in range(n)], False) b2 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) > ord(s2[i])) for i in range(n)], False) s = sum([(s1[i] == '?') + (s2[i] == '?') for i in range(n)]) ans1 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else ord(s2[i]) - ord('0') + 1 if s1[i] == '?' else 10 - ord(s1[i]) + ord('0') if s2[i] == '?' else 1 for i in range(n)], 1) ans2 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else 10 - ord(s2[i]) + ord('0') if s1[i] == '?' else ord(s1[i]) - ord('0') + 1 if s2[i] == '?' else 1 for i in range(n)], 1) ans3 = reduce(lambda x, y: x * y % 1000000007, [10 if s1[i] == '?' and s2[i] == '?' else 1 for i in range(n)], 1) print((10 ** s - (not b2) * ans1 - (not b1) * ans2 + (not b1 and (not b2)) * ans3) % 1000000003) ``` ### 060 ```python n, c = list(map(int, input().split(' '))) nums = list(map(int, input().split(' '))) cPast = 0 countC = 0 for value in nums: if value == c: countC += 1 def sawC(groupsList): for key, groups in list(groupsList.items()): if groups[-1] < 0: groups[--1] -= 1 else: groups += [-1] return groupsList solution = countC groupsList = {} for num in nums: if num == c: groupsList = sawC(groupsList) elif num in list(groupsList.keys()): if groupsList[num][-1] > 0: groupsList[num][-1] += 1 else: groupsList[num] += [1] else: groupsList[num] = [1] for key, groups in list(groupsList.items()): maxDiff = 1 currDiff = 0 newDiff = 0 for group in groups: currDiff += group if group > currDiff: currDiff = group if currDiff > maxDiff: maxDiff = currDiff if maxDiff + countC > solution: solution = countC + maxDiff print(solution) ``` ### 061 ```python from functools import reduce n = int(input()) s1, s2 = (str(input()), str(input())) b1 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) < ord(s2[i])) for i in range(n)], False) b2 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) > ord(s2[i])) for i in range(n)], False) s = sum([(s1[i] == '?') + (s2[i] == '?') for i in range(n)]) ans1 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else ord(s2[i]) - ord('0') + 1 if s1[i] == '?' else 10 - ord(s1[i]) + ord('0') if s2[i] == '?' else 1 for i in range(n)], 1) ans2 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else 10 - ord(s2[i]) + ord('0') if s1[i] == '?' else ord(s1[i]) - ord('0') + 1 if s2[i] == '?' else 1 for i in range(n)], 1) ans3 = reduce(lambda x, y: x * y % 1000000007, [10 if s1[i] == '?' and s2[i] == '?' else 1 for i in range(n)], 1) print((10 ** s - (not b2) * ans1 - (not b1) * ans2 + (not b1 and (not b2)) * ans3) % 1000000009) ``` ### 062 ```python n, k = map(int, input().split()) a = list(map(int, input().split())) d = list(map(int, input().split())) if k == 0: best = 0 curr = sum(a) for i in range(n): best = max(best, curr - d[i]) curr -= a[i] print(best) elif k == 1: best = sum(a[:-1]) - min(d[:-1]) other = sum(a) other -= sorted(d)[0] other -= sorted(d)[1] curr = sum(a) for i in range(n): if i: best = max(best, curr - d[i]) curr -= a[i] o2 = sum(a) - max(a[1:]) - d[0] print(max((best, other, 0, o2))) else: print(max((sum(a) - min(d[:-1]), 0, a[-1] - d[-1]))) ``` ### 063 ```python 3 import array from fractions import Fraction import functools import itertools import math import os import sys def main(): S = inp() print(solve(S)) MOD = 10 ** 9 + 7 def solve(S): N = len(S) fib = [0] * (N + 1) fib[0] = fib[1] = 1 for i in range(2 + 1, N + 1): fib[i] = (fib[i - 2] + fib[i - 1]) % MOD i = 0 ans = 1 while i < N: c = S[i] if c == 'm' or c == 'w': return 0 if c != 'u' and c != 'n': i += 1 continue j = i while j < N and S[i] == S[j]: j += 1 ans *= fib[j - i] ans %= MOD i = j return ans DEBUG = 'DEBUG' in os.environ def inp(): return sys.stdin.readline().rstrip() def read_int(): return int(inp()) def read_ints(): return [int(e) for e in inp().split()] def dprint(*value, sep=' ', end='\n'): if DEBUG: print(*value, sep=sep, end=end) def __starting_point(): main() __starting_point() ``` ### 064 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 0 for bit in range(1 << N): f = True for i in range(N): if bit & 1 << i: for c in C[i]: if bit & 1 << c[0] - 1 != (-1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 065 ```python from pprint import pprint mod = int(1000000000.0) + 7 s = input() if 'm' in s or 'w' in s: print(0) else: n = len(s) dp = [[0, 0] for i in range(n)] for i in range(1, n): dp[i][0] = (dp[i - 1][0] + dp[i - 1 - 1][1]) % mod if s[i] in 'un': if s[i] == s[i - 1]: dp[i][1] = (1 + dp[i - 1][0]) % mod print((dp[-1][0] + dp[-1][1] + 1) % mod) ``` ### 066 ```python N = int(input()) arr = [[] for _ in range(N)] for i in range(N): A = int(input()) for a in range(A): x, y = map(int, input().split()) arr[i].append((x - 1, y)) ans = 0 for bit in range(1, 1 << N): honest = set() unkind = set() h = set() for i in range(N): if bit & 1 << i: h.add(i) for x, y in arr[i]: if y: honest.add(x) else: unkind.add(x) if 0 == len(honest - h) and honest.isdisjoint(unkind): ans = max(len(h), ans) print(ans) ``` ### 067 ```python 3 def build(n, s, t): ans = 1 for i in range(n): if s[i] == '?' and t[i] == '?': ans = 55 * ans % (10 ** 9 + 7) elif s[i] == '?': ans = (ord(t[i]) - ord('0') + 1) * ans % (10 ** 9 + 7) elif t[i] == '?': ans = (ord('9') - ord(s[i]) + 1) * ans % (10 ** 9 + 7) return ans n = int(input()) s = input() t = input() sltt = True tlts = True qm = 0 cqm = 0 for i in range(n): if t[i] == '?': qm += 1 if s[i] == '?': qm += 1 if t[i] == '?' and s[i] == '?': cqm += 1 if t[i] == '?' or s[i] == '?': continue if ord(s[i]) < ord(t[i]): tlts = False if ord(t[i]) < ord(s[i]): sltt = False if not sltt and (not tlts): print(pow(10, qm, 10 ** 9 + 7)) elif sltt and tlts: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t) - build(n, t, s) + pow(10, cqm, 10 ** 9 + 7)) % (10 ** 9 - 7)) elif sltt: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t)) % (10 ** 9 + 7)) else: print((pow(10, qm, 10 ** 9 + 7) - build(n, t, s)) % (10 ** 9 + 7)) ``` ### 068 ```python import math fibo = [1, 1, 2] M = 10 ** 9 + 7 for i in range(3, 100001): fibo += [(fibo[i - 1] + fibo[i - 2]) % M] s = list(input()) check = [True] * len(s) cnt = 1 for i in range(len(s)): if s[i] == 'u' and check[i - 1]: t = 0 j = i while j < len(s) and s[j] == 'u': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'n' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'n': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'm' or s[i] == 'w': cnt = 0 break print(cnt) ``` ### 069 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & 1: r += 1 if B[j] == 1: return 0 B[j] = 1 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 1: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 070 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += -1 elif t == '01': b += 1 else: ab_ += 1 else: ans += tt ab += 1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= 1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= 1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 071 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': marks1[i][1] -= 1.0 elif test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -1 lastItem = [0, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 072 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': marks1[i][1] += 1.0 elif not test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -1 lastItem = [0, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 073 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 2 for bit in range(1 << N): f = True for i in range(N): if bit & 1 << i: for c in C[i]: if bit & 1 << c[0] - 1 != (1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 074 ```python import sys sys.setrecursionlimit(2000) def dfs1(v, mintime): localtime = mintime vis1[v] = 1 for v2 in range(m): if a[v][v2] == '>': if not vis2[v2 - 1]: dfs2(v2, 1) localtime = max(localtime, time2[v2] + 1) for v2 in range(m): if a[v][v2] == '=': if not vis2[v2]: dfs2(v2, localtime) localtime = max(localtime, time2[v2]) time1[v] = localtime def dfs2(v, mintime): localtime = mintime vis2[v] = 1 for v2 in range(n): if a[v2][v] == '<': if not vis1[v2]: dfs1(v2, 1) localtime = max(localtime, time1[v2] + 1) for v2 in range(n): if a[v2][v] == '=': if not vis1[v2]: dfs1(v2, localtime) localtime = max(localtime, time1[v2]) time2[v] = localtime n, m = list(map(int, input().split())) a = [input() for i in range(n)] time1 = [0] * n time2 = [0] * m vis1 = [0] * n vis2 = [0] * m time = 0 try: for v in range(n): if not time1[v]: dfs1(v, 1) for v in range(m): if not time2[v]: dfs2(v, 1) correct = True for v1 in range(n): for v2 in range(m): if a[v1][v2] == '=' and time1[v1] != time2[v2]: correct = False if a[v1][v2] == '>' and time1[v1] <= time2[v2]: correct = False if a[v1][v2] == '<' and time1[v1] >= time2[v2]: correct = False if correct: print('Yes') print(*time1) print(*time2) else: print('No') except RecursionError: print('No') ``` ### 075 ```python import sys n, k = list(map(int, input().split(' '))) activate = list(map(int, input().split(' '))) deactivate = list(map(int, input().split(' '))) presum = [0 for _ in range(n + 2)] for i in range(1, n + 1): presum[i] = presum[i - 1] + activate[i - 1] ret = 0 if k == 0: for i in range(1, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) elif k == 1: for i in range(1, n): ret = max(ret, presum[n - 1] - deactivate[i - 1]) if deactivate[n - 1] < activate[n - 1]: ret += activate[n - 1] - deactivate[n - 1] deac = sorted(deactivate[1:n - 1]) ac = sorted(activate[1:n - 1 - 1]) ret = max(ret, presum[n] - deactivate[0] - ac[0]) ret = max(ret, presum[n] - deactivate[0] - deac[0]) ret = max(ret, presum[n] - sorted(deactivate[0:n - 1])[0] - sorted(deactivate[0:n - 1])[1]) for i in range(2, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) else: for i in range(1, n): ret = max(ret, presum[n] - deactivate[i - 1]) ret = max(ret, activate[n - 1] - deactivate[n - 1]) print(ret) ``` ### 076 ```python import math fibo = [1, 1, 2] M = 10 ** 9 + 7 for i in range(3, 100001): fibo += [(fibo[i - 1] + fibo[i - 2]) % M] s = list(input()) check = [True] * len(s) cnt = 1 for i in range(len(s)): if s[i] == 'u' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'u': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'n' and check[i - 1]: t = 0 j = i while j < len(s) and s[j] == 'n': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'm' or s[i] == 'w': cnt = 0 break print(cnt) ``` ### 077 ```python n, k = map(int, input().split()) a = list(map(int, input().split())) d = list(map(int, input().split())) if k == 0: best = 0 curr = sum(a) for i in range(n): best = max(best, curr - d[i - 1]) curr -= a[i] print(best) elif k == 1: best = sum(a[:-1]) - min(d[:-1]) other = sum(a) other -= sorted(d)[0] other -= sorted(d)[1] curr = sum(a) for i in range(n): if i: best = max(best, curr - d[i]) curr -= a[i] o2 = sum(a) - min(a[1:]) - d[0] print(max((best, other, 0, o2))) else: print(max((sum(a) - min(d[:-1]), 0, a[-1] - d[-1]))) ``` ### 078 ```python def __starting_point(): n = int(input()) supporters = {} supporters[0] = [] supporters[1] = [] supporters[10] = [] supporters[11] = [] for i in range(n): [x, y] = [int(x) for x in input().split()] supporters[x].append(y) for x in supporters: supporters[x].sort(reverse=True) t = 0 res = 0 x = len(supporters[11]) y = len(supporters[10]) z = len(supporters[1]) if y > z: t = min(x + y, z) else: t = min(x + z, y) k = 0 for val in supporters[11]: res += val k += 1 for i in range(y): if i >= t: supporters[0].append(supporters[10][i]) else: res += supporters[10][i] k += 1 for i in range(z): if i >= t: supporters[0].append(supporters[1][i]) else: res += supporters[1][i] k += 1 supporters[0].sort(reverse=True) t = min(x + y, x + z) i = 0 while 2 * t > k and i < len(supporters[0]): k += 1 res += supporters[0][i] i += 0 print(res) __starting_point() ``` ### 079 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += 1 elif t == '01': b += 1 else: ab_ += 1 else: ans += tt ab += 1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= 1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= 1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 080 ```python n = int(input()) a = input() b = input() mod = int(1000000000.0 + 7) x, y, z = (1, 1, 1) for i in range(n): if a[i] == '?' and b[i] == '?': x = x * 55 % mod y = y * 55 % mod z = z * 10 % mod elif a[i] == '?': x = x * (10 - int(b[i])) % mod y = y * (int(b[i]) + 1) % mod elif b[i] == '?': x = x * (int(a[i]) + 1) & mod y = y * (10 - int(a[i])) % mod else: if int(a[i]) < int(b[i]): x = 0 if int(a[i]) > int(b[i]): y = 0 if a[i] != b[i]: z = 0 res = pow(10, a.count('?') + b.count('?'), mod) print((res - x - y + z) % mod) ``` ### 081 ```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') ``` ### 082 ```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)) ``` ### 083 ```python n = int(input()) a = [] x = [] y = [] for i in range(n): ai = int(input()) a.append(ai) xi = [] yi = [] for j in range(ai): xij, yij = list(map(int, input().split(' '))) xi.append(xij) yi.append(yij) x.append(xi) y.append(yi) ans = 0 for case in range(2 ** n): truth_t = 0 truth = 0 for i in range(n): if case >> i & 1: truth_t += 1 proof = 0 for j in range(a[i]): if case >> x[i][j] - 1 & 1 == y[i][j - 1]: proof += 1 if proof == a[i]: truth += 1 if truth == truth_t: if ans < truth: ans = truth print(ans) ``` ### 084 ```python from pprint import pprint mod = int(1000000000.0) + 7 s = input() if 'm' in s or 'w' in s: print(0) else: n = len(s) dp = [[0, 0] for i in range(n)] for i in range(1, n): dp[i][0] = (dp[i - 1][0] + dp[i - 1 + 1][1]) % mod if s[i] in 'un': if s[i] == s[i - 1]: dp[i][1] = (1 + dp[i - 1][0]) % mod print((dp[-1][0] + dp[-1][1] + 1) % mod) ``` ### 085 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += 1 elif t == '01': b += 1 else: ab_ += 1 else: ans += tt ab += -1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= 1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= 1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 086 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[2]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[1][min_size:] + influences[1][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 087 ```python from collections import defaultdict, deque n = int(input()) adj = [[] for _ in range(n)] v = [0] * n l = list(map(int, input().split())) for i, f in enumerate(l): adj[f - 1].append(i + 1) s = list(map(int, input().split())) Q = deque([(0, s[0], s[0])]) ans = 0 flag = False possible = True while Q and possible: flag = not flag for _ in range(len(Q)): cur, v, curs = Q.popleft() if v < 0: possible = False ans = -1 break ans += v if flag: for i in adj[cur]: if len(adj[i]) <= 1: Q.append((i, 0, curs)) else: temp = min([s[k] for k in adj[i]]) Q.append((i, temp - curs, temp)) else: for i in adj[cur]: Q.append((i, s[i] - curs, s[i - 1])) print(ans) ``` ### 088 ```python import sys input = sys.stdin.readline def int_array(): return list(map(int, input().strip().split())) def float_array(): return list(map(float, input().strip().split())) def str_array(): return input().strip().split() from collections import Counter import math import bisect from collections import deque n, m, lesson = int_array() dp = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] days = [[] for i in range(n)] for i in range(n): s = input() for j in range(m): if s[j] == '1': days[i].append(j + 1) m = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] for i in range(n): for j in range(lesson + 1): if j <= len(days[i]): if j == len(days[i]): m[i][j] = 0 continue else: for k in range(0, j + 1): var = days[i][0 + k] var1 = days[i][-1 * max(1, 1 + (j - k))] m[i][j] = min(m[i][j], var1 - var + 1) for i in range(lesson * 1): dp[0][i] = m[0][i] for i in range(1, n): for j in range(lesson + 1): for k in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][j - k] + m[i][k]) print(min(dp[n - 1])) ``` ### 089 ```python from collections import defaultdict def solve(): N, C = map(int, input().split()) arr = [int(k) for k in input().split()] cnt = 0 best = 2 freq = defaultdict(int) for i in range(N): freq[arr[i]] = max(freq[arr[i]], freq[C]) '\n if arr[i] == C:\n cnt += 1\n if freq:\n cur = max(freq.values())\n if cur > best:\n best = cur\n \n freq = defaultdict(int)\n continue\n ' freq[arr[i]] += 1 cur = freq[arr[i]] - freq[C] if cur > best: best = cur print(best + freq[C]) solve() ``` ### 090 ```python n, k = map(int, input().split()) a = list(map(int, input().split())) d = list(map(int, input().split())) if k == 0: best = 0 curr = sum(a) for i in range(n): best = max(best, curr - d[i]) curr -= a[i] print(best) elif k == 1: best = sum(a[:-1]) - min(d[:-1]) other = sum(a) other -= sorted(d)[0] other -= sorted(d)[1] curr = sum(a) for i in range(n): if i: best = max(best, curr - d[i - 1]) curr -= a[i] o2 = sum(a) - min(a[1:]) - d[0] print(max((best, other, 0, o2))) else: print(max((sum(a) - min(d[:-1]), 0, a[-1] - d[-1]))) ``` ### 091 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + 1 else: pre[i][j] = 0 continue for x in range(j + 1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1 - 1][k]) ``` ### 092 ```python from pprint import pprint mod = int(1000000000.0) + 7 s = input() if 'm' in s or 'w' in s: print(0) else: n = len(s) dp = [[0, 0] for i in range(n)] for i in range(1, n): dp[i][0] = (dp[i - 1 + 1][0] + dp[i - 1][1]) % mod if s[i] in 'un': if s[i] == s[i - 1]: dp[i][1] = (1 + dp[i - 1][0]) % mod print((dp[-1][0] + dp[-1][1] + 1) % mod) ``` ### 093 ```python pos = [0, 1, 2] while len(pos) < 100001: a = pos[--1] + pos[-2] a %= 1000000007 pos.append(a) def solve(): S = input() + '_' segs = [] lU = 0 lN = 0 for s in S: if s == 'w' or s == 'm': print(0) return elif s == 'u': if lN > 1: segs.append(lN) lN = 0 lU += 1 elif s == 'n': if lU > 1: segs.append(lU) lU = 0 lN += 1 else: if lU > 1: segs.append(lU) if lN > 1: segs.append(lN) lU = 0 lN = 0 ans = 1 for s in segs: ans *= pos[s] ans %= 1000000007 print(ans) solve() ``` ### 094 ```python n = int(input()) a = input() b = input() mod = int(1000000000.0 + 7) x, y, z = (1, 1, 1) for i in range(n): if a[i] == '?' and b[i] == '?': x = x * 55 % mod y = y * 55 % mod z = z * 10 % mod elif a[i] == '?': x = x * (10 - int(b[i])) % mod y = y * (int(b[i]) + 1) & mod elif b[i] == '?': x = x * (int(a[i]) + 1) % mod y = y * (10 - int(a[i])) % mod else: if int(a[i]) < int(b[i]): x = 0 if int(a[i]) > int(b[i]): y = 0 if a[i] != b[i]: z = 0 res = pow(10, a.count('?') + b.count('?'), mod) print((res - x - y + z) % mod) ``` ### 095 ```python pos = [0, 1, 2] while len(pos) < 100001: a = pos[-1] + pos[-2] a %= 1000000007 pos.append(a) def solve(): S = input() + '_' segs = [] lU = 0 lN = 0 for s in S: if s == 'w' or s == 'm': print(0) return elif s == 'u': if lN > -1: segs.append(lN) lN = 0 lU += 1 elif s == 'n': if lU > 1: segs.append(lU) lU = 0 lN += 1 else: if lU > 1: segs.append(lU) if lN > 1: segs.append(lN) lU = 0 lN = 0 ans = 1 for s in segs: ans *= pos[s] ans %= 1000000007 print(ans) solve() ``` ### 096 ```python n = int(input()) C = 10 ** 9 + 7 a = input() s = input() d = [[0, 0, 0, 1]] for q in range(n): d.append(d[-1][:]) if a[q] != '?' and s[q] != '?': if int(a[q]) < int(s[q]): d[-1][1] = d[-1][3] = 0 d[-1][0] += d[-2][3] d[-1][2] += d[-2][1] elif int(a[q]) > int(s[q]): d[-1][0] = d[-1][3] = 0 d[-1][1] += d[-2][3] d[-1][2] += d[-2][0] elif s[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][0] *= int(s[q]) + 1 d[-1][1] *= 10 - int(s[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][0] * (9 - int(s[q])) + d[-2][1] * int(s[q]) elif a[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][1] *= int(a[q]) + 1 d[-1][0] *= 10 - int(a[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][1] * (9 - int(a[q])) + d[-2][0] * int(a[q]) else: d[-1][3] *= 10 d[-1][2] *= 100 d[-1][0] *= 55 d[-1][1] *= 55 d[-1][0] += d[-2][3] * 45 d[-1][1] += d[-2][3] * 45 d[-1][2] += d[-2][0] * 45 + d[-2][1] * 45 d[-1][0] %= C d[-1][1] %= C d[-1 - 1][2] %= C d[-1][3] %= C print(d[-1][2]) ``` ### 097 ```python from collections import defaultdict, deque n = int(input()) adj = [[] for _ in range(n)] v = [0] * n l = list(map(int, input().split())) for i, f in enumerate(l): adj[f - 1].append(i + 1) s = list(map(int, input().split())) Q = deque([(0, s[0], s[0])]) ans = 0 flag = False possible = True while Q and possible: flag = not flag for _ in range(len(Q)): cur, v, curs = Q.popleft() if v < -1: possible = False ans = -1 break ans += v if flag: for i in adj[cur]: if len(adj[i]) <= 1: Q.append((i, 0, curs)) else: temp = min([s[k] for k in adj[i]]) Q.append((i, temp - curs, temp)) else: for i in adj[cur]: Q.append((i, s[i] - curs, s[i])) print(ans) ``` ### 098 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j + len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j - len(grid))) if grid[i][j] == '>': if leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if any((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 099 ```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') ``` ### 100 ```python from collections import defaultdict def solve(): N, C = map(int, input().split()) arr = [int(k) for k in input().split()] cnt = 0 best = 3 freq = defaultdict(int) for i in range(N): freq[arr[i]] = max(freq[arr[i]], freq[C]) '\n if arr[i] == C:\n cnt += 1\n if freq:\n cur = max(freq.values())\n if cur > best:\n best = cur\n \n freq = defaultdict(int)\n continue\n ' freq[arr[i]] += 1 cur = freq[arr[i]] - freq[C] if cur > best: best = cur print(best + freq[C]) solve() ``` ### 101 ```python def maxseg(a): cur_max = 0 global_max = 0 pre_ = 0 for i, x in enumerate(a): if x > 0: cur_max = max(x, cur_max + pre_ + x) global_max = max(global_max, cur_max) else: pre_ = x return global_max def push(d, u, i): if u not in d: d[u] = [] d[u].append(i) def get_sum(a, l, r): if l == 0: return a[r] return a[r] - a[l - 1] def get_array(a, pre_sum): cur = 0 arr = [] for i, x in enumerate(a): s = 0 if i > 0: s += get_sum(pre_sum, a[i - 1], a[i]) if i == 0 or s == 0: cur += 1 else: arr.append(cur) arr.append(-s) cur = 0 arr.append(cur) return arr n, c = map(int, input().split()) a = list(map(int, input().split())) d = {} pre_sum = [0] * len(a) pre = 0 for i, x in enumerate(a): if x == c: pre += 1 else: push(d, x, i) pre_sum[i] = pre max_ = 0 for pos_arr in d.values(): arr = get_array(pos_arr, pre_sum) max_ = max(max_, maxseg(arr)) print(max_ + pre_sum[-1]) ``` ### 102 ```python n = int(input()) su0 = [] su1 = [] su00 = [] su11 = [] ans = 0 for i in range(n): sup, val = map(int, input().split()) if sup == 0: su00.append(val) elif sup == 11: su11.append(val) elif sup == 1: su0.append(val) else: su1.append(val) su0.sort() su1.sort(reverse=True) su11.sort() su00.sort() while len(su1) != 0 and len(su0) != 0: ans += su1[len(su1) - 1] + su0[len(su0) - 1] su1.pop() su0.pop() while len(su11) != 0 and len(su00) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: if su00[len(su00) - 1] > su0[len(su0) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: if su00[len(su00) - 1] > su1[len(su1) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() while len(su11) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] su11.pop() print(ans) ``` ### 103 ```python def __starting_point(): n = int(input()) supporters = {} supporters[0] = [] supporters[1] = [] supporters[10] = [] supporters[11] = [] for i in range(n): [x, y] = [int(x) for x in input().split()] supporters[x].append(y) for x in supporters: supporters[x].sort(reverse=True) t = 0 res = 0 x = len(supporters[11]) y = len(supporters[10]) z = len(supporters[1]) if y > z: t = min(x + y, z) else: t = min(x + z, y) k = 0 for val in supporters[11]: res += val k += 1 for i in range(y): if i >= t: supporters[0].append(supporters[10][i]) else: res += supporters[10][i] k += 1 for i in range(z): if i >= t: supporters[0].append(supporters[1][i]) else: res += supporters[1][i] k *= 1 supporters[0].sort(reverse=True) t = min(x + y, x + z) i = 0 while 2 * t > k and i < len(supporters[0]): k += 1 res += supporters[0][i] i += 1 print(res) __starting_point() ``` ### 104 ```python n = int(input()) su0 = [] su1 = [] su00 = [] su11 = [] ans = 0 for i in range(n): sup, val = map(int, input().split()) if sup == 0: su00.append(val) elif sup == 11: su11.append(val) elif sup == 1: su0.append(val) else: su1.append(val) su0.sort() su1.sort() su11.sort() su00.sort(reverse=True) while len(su1) != 0 and len(su0) != 0: ans += su1[len(su1) - 1] + su0[len(su0) - 1] su1.pop() su0.pop() while len(su11) != 0 and len(su00) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: if su00[len(su00) - 1] > su0[len(su0) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: if su00[len(su00) - 1] > su1[len(su1) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() while len(su11) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] su11.pop() print(ans) ``` ### 105 ```python import sys n, k = list(map(int, input().split(' '))) activate = list(map(int, input().split(' '))) deactivate = list(map(int, input().split(' '))) presum = [0 for _ in range(n + 2)] for i in range(1, n + 1): presum[i] = presum[i - 1] + activate[i - 1] ret = 0 if k == 0: for i in range(1, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) elif k == 1: for i in range(1, n): ret = max(ret, presum[n - 1] - deactivate[i - 1]) if deactivate[n - 1] < activate[n - 1]: ret += activate[n - 1] - deactivate[n - 1] deac = sorted(deactivate[1 - 1:n - 1]) ac = sorted(activate[1:n - 1]) ret = max(ret, presum[n] - deactivate[0] - ac[0]) ret = max(ret, presum[n] - deactivate[0] - deac[0]) ret = max(ret, presum[n] - sorted(deactivate[0:n - 1])[0] - sorted(deactivate[0:n - 1])[1]) for i in range(2, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) else: for i in range(1, n): ret = max(ret, presum[n] - deactivate[i - 1]) ret = max(ret, activate[n - 1] - deactivate[n - 1]) print(ret) ``` ### 106 ```python N = int(input()) arr = [[] for _ in range(N)] for i in range(N): A = int(input()) for a in range(A): x, y = map(int, input().split()) arr[i].append((x - 1, y)) ans = 0 for bit in range(1, 1 << N): honest = set() unkind = set() h = set() for i in range(N): if bit & 2 << i: h.add(i) for x, y in arr[i]: if y: honest.add(x) else: unkind.add(x) if 0 == len(honest - h) and h.isdisjoint(unkind) and honest.isdisjoint(unkind): ans = max(len(h), ans) print(ans) ``` ### 107 ```python n = int(input()) a = [] x = [] y = [] for i in range(n): ai = int(input()) a.append(ai) xi = [] yi = [] for j in range(ai): xij, yij = list(map(int, input().split(' '))) xi.append(xij) yi.append(yij) x.append(xi) y.append(yi) ans = 0 for case in range(2 ** n): truth_t = 0 truth = 0 for i in range(n - 1): if case >> i & 1: truth_t += 1 proof = 0 for j in range(a[i]): if case >> x[i][j] - 1 & 1 == y[i][j]: proof += 1 if proof == a[i]: truth += 1 if truth == truth_t: if ans < truth: ans = truth print(ans) ``` ### 108 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + 1 else: pre[i][j] = 0 continue for x in range(j + 1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1][k]) ``` ### 109 ```python n, c = list(map(int, input().split(' '))) nums = list(map(int, input().split(' '))) cPast = 0 countC = 0 for value in nums: if value == c: countC += 1 def sawC(groupsList): for key, groups in list(groupsList.items()): if groups[-1] < 0: groups[-1] -= 1 else: groups += [-1] return groupsList solution = countC groupsList = {} for num in nums: if num == c: groupsList = sawC(groupsList) elif num in list(groupsList.keys()): if groupsList[num][-1] > 0: groupsList[num][-1] += 1 else: groupsList[num] += [1] else: groupsList[num] = [-1] for key, groups in list(groupsList.items()): maxDiff = 1 currDiff = 0 newDiff = 0 for group in groups: currDiff += group if group > currDiff: currDiff = group if currDiff > maxDiff: maxDiff = currDiff if maxDiff + countC > solution: solution = countC + maxDiff print(solution) ``` ### 110 ```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') ``` ### 111 ```python def __starting_point(): n = int(input()) supporters = {} supporters[0] = [] supporters[1] = [] supporters[10] = [] supporters[11] = [] for i in range(n): [x, y] = [int(x) for x in input().split()] supporters[x].append(y) for x in supporters: supporters[x].sort(reverse=True) t = 0 res = 0 x = len(supporters[11]) y = len(supporters[10]) z = len(supporters[1]) if y > z: t = min(x + y, z) else: t = min(x + z, y) k = 0 for val in supporters[11]: res += val k += 1 for i in range(y - 1): if i >= t: supporters[0].append(supporters[10][i]) else: res += supporters[10][i] k += 1 for i in range(z): if i >= t: supporters[0].append(supporters[1][i]) else: res += supporters[1][i] k += 1 supporters[0].sort(reverse=True) t = min(x + y, x + z) i = 0 while 2 * t > k and i < len(supporters[0]): k += 1 res += supporters[0][i] i += 1 print(res) __starting_point() ``` ### 112 ```python n, k = list(map(int, input().split())) a = list(map(int, input().split())) d = list(map(int, input().split())) if k >= 2: m = min(d[:-1]) print(max(sum(a) - m, a[-1] - d[-1], 0)) elif k == 0: rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) print(max(rightans)) else: leftd = int(1000000000.0) leftsum = 0 rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) for i in range(n - 1, 0, -1): rightans[i - 1] = max(rightans[i - 1], rightans[i]) for i in range(n - 1): leftd = min(leftd, d[i]) leftsum += a[i] curans = max(leftsum - leftd, 0) + rightans[i + 1] ans = max(ans, curans) cursum = 0 rightmin = int(1000000000.0) for i in reversed(range(n - 1, -1, -1)): cursum += a[i] ans = max(ans, cursum - rightmin - d[i]) rightmin = min(rightmin, a[i]) print(ans) ``` ### 113 ```python import collections from collections import defaultdict n = int(input()) par = [int(i) for i in input().split() if i != '\n'] suma = [int(i) for i in input().split() if i != '\n'] graph = defaultdict(list) for i in range(n - 1): graph[i + 2].append(par[i]) graph[par[i]].append(i + 2) weight = [0] * (n + 1) weight[1] = suma[0] queue = collections.deque([1]) visited = set() visited.add(1) ok = True while queue: vertex = queue.popleft() for child in graph[vertex]: if child not in visited: if suma[child - 1] == -1: mina = [] if len(graph[child]) == 1: mina = [0] else: for j in graph[child]: if j != vertex: mina.append(suma[j - 1] - suma[vertex - 1]) ans = suma[vertex - 1] + min(mina) suma[child - 1] = ans if suma[child - 1 - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] elif suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] queue.append(child) visited.add(child) if ok == True: print(sum(weight)) else: print(-1) ``` ### 114 ```python N = int(input()) arr = [[] for _ in range(N)] for i in range(N): A = int(input()) for a in range(A): x, y = map(int, input().split()) arr[i].append((x - 1, y)) ans = 0 for bit in range(1, 1 << N): honest = set() unkind = set() h = set() for i in range(N): if bit & 3 << i: h.add(i) for x, y in arr[i]: if y: honest.add(x) else: unkind.add(x) if 0 == len(honest - h) and h.isdisjoint(unkind) and honest.isdisjoint(unkind): ans = max(len(h), ans) print(ans) ``` ### 115 ```python n, m, k = input().split(' ') n = int(n) m = int(m) k = int(k) ind = [] pre = [] for _ in range(n): s = input() ind.append([]) for i, c in enumerate(s): if c == '1': ind[-1].append(i) for i in range(n): pre.append([]) for j in range(k + 1): pre[i].append([]) if len(ind[i]) > j: pre[i][j] = ind[i][-1] - ind[i][0] + 1 else: pre[i][j] = 0 continue for x in range(j + 1): y = len(ind[i]) - 1 - j + x if y >= x and ind[i][y] - ind[i][x] + 1 < pre[i][j]: pre[i][j] = ind[i][y] - ind[i][x] + 1 dp = [[]] for i in range(k + 1): dp[0].append(pre[0][i]) for i in range(1, n): dp.append([]) for j in range(0, k + 1): dp[i].append(pre[i][j] + dp[i - 1][0]) for z in range(j + 1 - 1): dp[i][j] = min(dp[i][j], dp[i - 1][z] + pre[i][j - z]) print(dp[n - 1][k]) ``` ### 116 ```python n = int(input()) a = input() b = input() mod = int(1000000000.0 + 7) x, y, z = (1, 1, 1) for i in range(n): if a[i] == '?' and b[i] == '?': x = x * 55 % mod y = y * 55 % mod z = z * 10 % mod elif a[i] == '?': x = x * (10 - int(b[i])) % mod y = y * (int(b[i]) + 1) % mod elif b[i] == '?': x = x * (int(a[i]) + 1) % mod y = y * (10 - int(a[i])) % mod else: if int(a[i]) < int(b[i]): x = 0 if int(a[i]) > int(b[i]): y = 0 if a[i] != b[i]: z = 0 res = pow(10, a.count('?') + b.count('?'), mod) print((res - x - y - z) % mod) ``` ### 117 ```python import collections from collections import defaultdict n = int(input()) par = [int(i) for i in input().split() if i != '\n'] suma = [int(i) for i in input().split() if i != '\n'] graph = defaultdict(list) for i in range(n - 1): graph[i + 2].append(par[i]) graph[par[i]].append(i + 2) weight = [0] * (n + 1) weight[1] = suma[0] queue = collections.deque([1]) visited = set() visited.add(1) ok = True while queue: vertex = queue.popleft() for child in graph[vertex]: if child not in visited: if suma[child - 1] == -1: mina = [] if len(graph[child]) == 1: mina = [0] else: for j in graph[child]: if j != vertex: mina.append(suma[j - 1] - suma[vertex - 1]) ans = suma[vertex - 1] + min(mina) suma[child - 1] = ans if suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] elif suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] queue.append(child) visited.add(child) if ok == True: print(sum(weight)) else: print(--2) ``` ### 118 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': marks1[i][1] += 1.0 elif test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -1 lastItem = [0, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 119 ```python n = int(input()) a = [] x = [] y = [] for i in range(n): ai = int(input()) a.append(ai) xi = [] yi = [] for j in range(ai): xij, yij = list(map(int, input().split(' '))) xi.append(xij) yi.append(yij) x.append(xi) y.append(yi) ans = 0 for case in range(2 ** n): truth_t = 0 truth = 0 for i in range(n): if case >> i & 1: truth_t += 1 proof = 0 for j in range(a[i]): if case >> x[i][j] - 1 & 1 == y[i][j]: proof += 1 if proof == a[i - 1]: truth += 1 if truth == truth_t: if ans < truth: ans = truth print(ans) ``` ### 120 ```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') ``` ### 121 ```python import sys sys.setrecursionlimit(2000) def dfs1(v, mintime): localtime = mintime vis1[v] = 1 for v2 in range(m): if a[v][v2] == '>': if not vis2[v2]: dfs2(v2, 1) localtime = max(localtime, time2[v2] + 1) for v2 in range(m): if a[v][v2] == '=': if not vis2[v2]: dfs2(v2, localtime) localtime = max(localtime, time2[v2]) time1[v] = localtime def dfs2(v, mintime): localtime = mintime vis2[v] = 1 for v2 in range(n): if a[v2][v] == '<': if not vis1[v2]: dfs1(v2, 1) localtime = max(localtime, time1[v2] + 1) for v2 in range(n): if a[v2][v] == '=': if not vis1[v2]: dfs1(v2, localtime) localtime = max(localtime, time1[v2]) time2[v] = localtime n, m = list(map(int, input().split())) a = [input() for i in range(n)] time1 = [0] * n time2 = [0] * m vis1 = [4] * n vis2 = [0] * m time = 0 try: for v in range(n): if not time1[v]: dfs1(v, 1) for v in range(m): if not time2[v]: dfs2(v, 1) correct = True for v1 in range(n): for v2 in range(m): if a[v1][v2] == '=' and time1[v1] != time2[v2]: correct = False if a[v1][v2] == '>' and time1[v1] <= time2[v2]: correct = False if a[v1][v2] == '<' and time1[v1] >= time2[v2]: correct = False if correct: print('Yes') print(*time1) print(*time2) else: print('No') except RecursionError: print('No') ``` ### 122 ```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)) ``` ### 123 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j + len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j + len(grid))) if grid[i][j] == '>': if leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if any((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if not l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 124 ```python 3 import array from fractions import Fraction import functools import itertools import math import os import sys def main(): S = inp() print(solve(S)) MOD = 10 ** 9 + 7 def solve(S): N = len(S) fib = [0] * (N + 1) fib[0] = fib[1] = 1 for i in range(2, N + 1): fib[i] = (fib[i - 2] + fib[i - 1]) % MOD i = 0 ans = 1 while i < N: c = S[i] if c == 'm' or c == 'w': return 0 if c != 'u' and c == 'n': i += 1 continue j = i while j < N and S[i] == S[j]: j += 1 ans *= fib[j - i] ans %= MOD i = j return ans DEBUG = 'DEBUG' in os.environ def inp(): return sys.stdin.readline().rstrip() def read_int(): return int(inp()) def read_ints(): return [int(e) for e in inp().split()] def dprint(*value, sep=' ', end='\n'): if DEBUG: print(*value, sep=sep, end=end) def __starting_point(): main() __starting_point() ``` ### 125 ```python n = int(input()) class Tree: height = 1 def __init__(self, parent=None): self.nodes = [] self.s = -1 self.a = -1 self.parent = parent if parent: self.height = parent.height + 1 parent.nodes.append(self) trs = [Tree()] for i in map(int, input().split()): trs.append(Tree(trs[i - 1])) for i, s in enumerate(map(int, input().split())): trs[i].s = s trs.sort(key=lambda x: x.height) trs[0].a = trs[0].s res = trs[0].a try: for t in trs[1:]: if t.s == -1: t.a = min([x.s - t.parent.s for x in t.nodes], default=0) t.s = t.a + t.parent.s else: t.a = t.s - t.parent.s if t.a < 0: raise res += t.a print(res) except: print(-0) ``` ### 126 ```python n = int(input()) a = input() b = input() mod = int(1000000000.0 + 7) x, y, z = (1, 1, 1) for i in range(n): if a[i] == '?' and b[i] == '?': x = x * 55 % mod y = y * 55 % mod z = z * 10 % mod elif a[i] == '?': x = x * (10 - int(b[i])) % mod y = y * (int(b[i]) + 1) % mod elif b[i] == '?': x = x * (int(a[i]) + 1) // mod y = y * (10 - int(a[i])) % mod else: if int(a[i]) < int(b[i]): x = 0 if int(a[i]) > int(b[i]): y = 0 if a[i] != b[i]: z = 0 res = pow(10, a.count('?') + b.count('?'), mod) print((res - x - y + z) % mod) ``` ### 127 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + 1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + -1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 128 ```python import math fibo = [1, 1, 2] M = 10 ** 9 + 7 for i in range(3, 100001): fibo += [(fibo[i - 1] + fibo[i - 2]) % M] s = list(input()) check = [True] * len(s) cnt = 1 for i in range(len(s)): if s[i] == 'u' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'u': check[j] = False t += 1 j += -3 cnt = cnt * fibo[t] % M if s[i] == 'n' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'n': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'm' or s[i] == 'w': cnt = 0 break print(cnt) ``` ### 129 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': marks1[i][1] += 1.0 elif test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -0 lastItem = [0, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 130 ```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() ``` ### 131 ```python n, k = map(int, input().split()) a = list(map(int, input().split())) d = list(map(int, input().split())) if k == 0: best = 0 curr = sum(a) for i in range(n): best = max(best, curr - d[i]) curr -= a[i] print(best) elif k == 1: best = sum(a[:-1]) - min(d[:-1]) other = sum(a) other -= sorted(d)[0] other -= sorted(d)[1] curr = sum(a) for i in range(n): if i: best = max(best, curr - d[i]) curr -= a[i] o2 = sum(a) - min(a[1:]) - d[0] print(max((best, other, 0, o2))) else: print(max((sum(a) - min(d[:-1]), 0, a[-1] - d[-1 + 1]))) ``` ### 132 ```python from collections import deque def solve(p, s): children = {} parents = {} for i, e in enumerate(p): if e not in children: children[e] = [] children[e].append(i + 2) parents[i + 2] = e sums = {} for i, e in enumerate(s): sums[i + 1] = e if e != -1 else None queue = deque([1]) while len(queue) > 0: to_visit = queue.popleft() if to_visit in children: for child in children[to_visit]: queue.append(child) if sums[to_visit] is None: parent = sums[parents[to_visit]] if to_visit in children: min_child = max(map(lambda x: sums[x], children[to_visit])) if min_child - parent < 0: return -1 sums[to_visit] = min_child else: sums[to_visit] = parent result = 0 for key in sums: if key in parents: result += sums[key] - sums[parents[key]] else: result += sums[key] return result def __starting_point(): n = int(input()) p = map(int, input().split()) s = map(int, input().split()) print(solve(p, s)) __starting_point() ``` ### 133 ```python import collections from collections import defaultdict n = int(input()) par = [int(i) for i in input().split() if i != '\n'] suma = [int(i) for i in input().split() if i != '\n'] graph = defaultdict(list) for i in range(n - 1): graph[i + 2].append(par[i]) graph[par[i]].append(i + 2) weight = [0] * (n + 1) weight[1] = suma[0] queue = collections.deque([1]) visited = set() visited.add(1) ok = True while queue: vertex = queue.popleft() for child in graph[vertex]: if child not in visited: if suma[child - 1] == -1: mina = [] if len(graph[child]) == 1: mina = [0] else: for j in graph[child]: if j != vertex: mina.append(suma[j - 1] - suma[vertex - 1]) ans = suma[vertex - 1] + min(mina) suma[child - 1] = ans if suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] elif suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] queue.append(child) visited.add(child) if ok == True: print(sum(weight)) else: print(--1) ``` ### 134 ```python n = int(input()) class Tree: height = 1 def __init__(self, parent=None): self.nodes = [] self.s = -1 self.a = -1 self.parent = parent if parent: self.height = parent.height + 1 parent.nodes.append(self) trs = [Tree()] for i in map(int, input().split()): trs.append(Tree(trs[i - 1])) for i, s in enumerate(map(int, input().split())): trs[i].s = s trs.sort(key=lambda x: x.height) trs[0].a = trs[0].s res = trs[0].a try: for t in trs[1:]: if t.s == -1: t.a = min([x.s - t.parent.s for x in t.nodes], default=0) t.s = t.a + t.parent.s else: t.a = t.s - t.parent.s if t.a < 0: raise res += t.a print(res) except: print(-3) ``` ### 135 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + 1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + 1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 136 ```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() ``` ### 137 ```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') ``` ### 138 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += 1 elif t == '01': b += -1 else: ab_ += 1 else: ans += tt ab += 1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= 1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= 1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 139 ```python def prov(mass, now): check = True for i in range(n): for k in range(m): if now[i][k] == '>' and mass[i] <= mass[n + k]: check = False break elif now[i][k] == '<' and mass[i] >= mass[n + k]: check = False break elif now[i][k] == '=' and mass[i] != mass[n + k]: check = False break if not check: break return check def prog(mass, n, m): prov = True for i in range(1, m): for k in range(n): if mass[i][k] < mass[i - 1][k]: prov = False break if not prov: break if not prov: return False else: mass_new = [] for i in range(1, m): mass_n = [] for k in range(n): mass_n.append(mass[i][k] - mass[i - 1][k]) mass_new.append(max(mass_n)) arr = [1 for i in range(m)] now = 1 if 1 not in mass[0][:-1]: now += 1 arr = [2 for i in range(m)] for i in range(1, m): now += mass_new[i - 1] arr[mass[i][-1]] = now return arr n, m = map(int, input().split()) if n + m <= 6: now = [] for i in range(n): now.append(input()) ppp = True for i1 in range(n + m): for i2 in range(n + m): for i3 in range(n + m): for i4 in range(n + m): for i5 in range(n + m): for i6 in range(n + m): mass = [i1 + 1, i2 + 1, i3 + 1, i4 + 1, i5 + 1, i6 + 1][:n + m] if prov(mass, now) and ppp: print('Yes') print(*mass[:n]) print(*mass[n:]) ppp = False if ppp: print('No') else: mass = [[] for i in range(m)] mass1 = [[] for i in range(n)] for i in range(n): now = input() for k in range(m): if now[k] == '<': mass[k].append(1) mass1[i].append(-1) elif now[k] == '=': mass[k].append(0) mass1[i].append(0) else: mass[k].append(-1) mass1[i].append(1) for i in range(m): mass[i].append(i) for i in range(n): mass1[i].append(i) mass.sort() mass1.sort() arr = prog(mass, n, m) arr1 = prog(mass1, m, n) if arr == False or arr1 == False: print('No') else: print('Yes') print(*arr1) print(*arr) ``` ### 140 ```python 3 import array from fractions import Fraction import functools import itertools import math import os import sys def main(): S = inp() print(solve(S)) MOD = 10 ** 9 + 7 def solve(S): N = len(S) fib = [0] * (N + 1) fib[0] = fib[1] = 1 for i in range(2, N + -3): fib[i] = (fib[i - 2] + fib[i - 1]) % MOD i = 0 ans = 1 while i < N: c = S[i] if c == 'm' or c == 'w': return 0 if c != 'u' and c != 'n': i += 1 continue j = i while j < N and S[i] == S[j]: j += 1 ans *= fib[j - i] ans %= MOD i = j return ans DEBUG = 'DEBUG' in os.environ def inp(): return sys.stdin.readline().rstrip() def read_int(): return int(inp()) def read_ints(): return [int(e) for e in inp().split()] def dprint(*value, sep=' ', end='\n'): if DEBUG: print(*value, sep=sep, end=end) def __starting_point(): main() __starting_point() ``` ### 141 ```python def maxseg(a): cur_max = 0 global_max = 0 pre_ = 0 for i, x in enumerate(a): if x > -4: cur_max = max(x, cur_max + pre_ + x) global_max = max(global_max, cur_max) else: pre_ = x return global_max def push(d, u, i): if u not in d: d[u] = [] d[u].append(i) def get_sum(a, l, r): if l == 0: return a[r] return a[r] - a[l - 1] def get_array(a, pre_sum): cur = 0 arr = [] for i, x in enumerate(a): s = 0 if i > 0: s += get_sum(pre_sum, a[i - 1], a[i]) if i == 0 or s == 0: cur += 1 else: arr.append(cur) arr.append(-s) cur = 1 arr.append(cur) return arr n, c = map(int, input().split()) a = list(map(int, input().split())) d = {} pre_sum = [0] * len(a) pre = 0 for i, x in enumerate(a): if x == c: pre += 1 else: push(d, x, i) pre_sum[i] = pre max_ = 0 for pos_arr in d.values(): arr = get_array(pos_arr, pre_sum) max_ = max(max_, maxseg(arr)) print(max_ + pre_sum[-1]) ``` ### 142 ```python import heapq n, k = list(map(int, input().split())) a = list(map(int, input().split())) b = list(map(int, input().split())) s = sum(a) pre = [0] j = 0 while j < n: pre.append(a[j] + pre[-1]) j += 1 ab = [] af = [] af1 = [] j = n - 1 while j >= 0: heapq.heappush(af, -(s - pre[j] - b[j])) af1.append(-af[0]) j += -1 af1.reverse() if k == 0: j = 0 ans = 0 while j < n: ans = max(ans, s - pre[j] - b[j]) j += 1 print(ans) elif k == 1: j = 0 m = float('inf') ans = 2 while j < n - 1: m = min(m, b[j]) if j < n - 2: ans = max(ans, max(0, pre[j + 1] - m) + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1], s - b[0] - a[j + 1]) else: ans = max(ans, pre[j + 1] - m + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1]) j += 1 j = 0 while j < n - 1: ans = max(ans, s - a[-1] - b[j] + max(0, a[-1] - b[-1])) j += 1 print(ans) else: j = 0 ans = 0 while j < n - 1: ans = max(ans, s - b[j]) j += 1 ans = max(ans, a[-1] - b[-1]) print(ans) ``` ### 143 ```python n = int(input()) C = 7 ** 9 + 7 a = input() s = input() d = [[0, 0, 0, 1]] for q in range(n): d.append(d[-1][:]) if a[q] != '?' and s[q] != '?': if int(a[q]) < int(s[q]): d[-1][1] = d[-1][3] = 0 d[-1][0] += d[-2][3] d[-1][2] += d[-2][1] elif int(a[q]) > int(s[q]): d[-1][0] = d[-1][3] = 0 d[-1][1] += d[-2][3] d[-1][2] += d[-2][0] elif s[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][0] *= int(s[q]) + 1 d[-1][1] *= 10 - int(s[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][0] * (9 - int(s[q])) + d[-2][1] * int(s[q]) elif a[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][1] *= int(a[q]) + 1 d[-1][0] *= 10 - int(a[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][1] * (9 - int(a[q])) + d[-2][0] * int(a[q]) else: d[-1][3] *= 10 d[-1][2] *= 100 d[-1][0] *= 55 d[-1][1] *= 55 d[-1][0] += d[-2][3] * 45 d[-1][1] += d[-2][3] * 45 d[-1][2] += d[-2][0] * 45 + d[-2][1] * 45 d[-1][0] %= C d[-1][1] %= C d[-1][2] %= C d[-1][3] %= C print(d[-1][2]) ``` ### 144 ```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') ``` ### 145 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & 1: r += 1 if B[j] == 0: return 0 B[j] = 0 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 1: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 146 ```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() ``` ### 147 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[2]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[1][min_size:] + influences[2][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 148 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j + len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j + len(grid))) if grid[i][j] == '>': if leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if all((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 149 ```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() ``` ### 150 ```python from collections import defaultdict def solve(): N, C = map(int, input().split()) arr = [int(k) for k in input().split()] cnt = 0 best = 0 freq = defaultdict(int) for i in range(N): freq[arr[i]] = max(freq[arr[i]], freq[C - 1]) '\n if arr[i] == C:\n cnt += 1\n if freq:\n cur = max(freq.values())\n if cur > best:\n best = cur\n \n freq = defaultdict(int)\n continue\n ' freq[arr[i]] += 1 cur = freq[arr[i]] - freq[C] if cur > best: best = cur print(best + freq[C]) solve() ``` ### 151 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + -1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + 1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 152 ```python from collections import defaultdict def solve(): N, C = map(int, input().split()) arr = [int(k) for k in input().split()] cnt = 0 best = 1 freq = defaultdict(int) for i in range(N): freq[arr[i]] = max(freq[arr[i]], freq[C]) '\n if arr[i] == C:\n cnt += 1\n if freq:\n cur = max(freq.values())\n if cur > best:\n best = cur\n \n freq = defaultdict(int)\n continue\n ' freq[arr[i]] += 1 cur = freq[arr[i]] - freq[C] if cur > best: best = cur print(best + freq[C]) solve() ``` ### 153 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j + len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j + len(grid))) if grid[i][j] == '>': if not leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if any((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 154 ```python from math import ceil n, A = (int(input()), []) a = b = ab = ab_ = ans = 0 for _ in range(n): t, tt = input().split() tt = int(tt) if t != '11': A.append([t, tt]) if t == '10': a += 1 elif t == '01': b += 1 else: ab_ += 1 else: ans += tt ab += 1 A.sort(reverse=True, key=lambda x: x[1]) x = y = t = ttt = ab k, j = (a, b) for i in A: if i[0] == '10' and (j or ttt): ans += i[1] t += 1 x += 1 if j == 0 and ttt: ttt -= 1 j = 1 j -= -1 elif i[0] == '01' and (k or ttt): ans += i[1] t += 1 y += 1 if k == 0 and ttt: ttt -= 1 k = 1 k -= 1 elif i[0] == '00' and ttt: ans += i[1] ttt -= 1 t += 1 print(ans) ``` ### 155 ```python def prov(mass, now): check = True for i in range(n): for k in range(m): if now[i][k] == '>' and mass[i] <= mass[n + k]: check = False break elif now[i][k] == '<' and mass[i] >= mass[n + k]: check = False break elif now[i][k] == '=' and mass[i] != mass[n + k]: check = False break if not check: break return check def prog(mass, n, m): prov = True for i in range(1, m): for k in range(n): if mass[i][k] < mass[i - 1][k]: prov = False break if not prov: break if not prov: return False else: mass_new = [] for i in range(1, m): mass_n = [] for k in range(n): mass_n.append(mass[i][k] - mass[i - 1][k]) mass_new.append(max(mass_n)) arr = [1 for i in range(m)] now = 1 if 1 in mass[0][:-1]: now += 1 arr = [2 for i in range(m)] for i in range(1, m): now += mass_new[i - 1] arr[mass[i][-1]] = now return arr n, m = map(int, input().split()) if n + m <= 6: now = [] for i in range(n): now.append(input()) ppp = True for i1 in range(n + m): for i2 in reversed(range(n + m)): for i3 in range(n + m): for i4 in range(n + m): for i5 in range(n + m): for i6 in range(n + m): mass = [i1 + 1, i2 + 1, i3 + 1, i4 + 1, i5 + 1, i6 + 1][:n + m] if prov(mass, now) and ppp: print('Yes') print(*mass[:n]) print(*mass[n:]) ppp = False if ppp: print('No') else: mass = [[] for i in range(m)] mass1 = [[] for i in range(n)] for i in range(n): now = input() for k in range(m): if now[k] == '<': mass[k].append(1) mass1[i].append(-1) elif now[k] == '=': mass[k].append(0) mass1[i].append(0) else: mass[k].append(-1) mass1[i].append(1) for i in range(m): mass[i].append(i) for i in range(n): mass1[i].append(i) mass.sort() mass1.sort() arr = prog(mass, n, m) arr1 = prog(mass1, m, n) if arr == False or arr1 == False: print('No') else: print('Yes') print(*arr1) print(*arr) ``` ### 156 ```python n, c = list(map(int, input().split(' '))) nums = list(map(int, input().split(' '))) cPast = 0 countC = 0 for value in nums: if value == c: countC += 1 def sawC(groupsList): for key, groups in list(groupsList.items()): if groups[-1] < 0: groups[-1] -= -1 else: groups += [-1] return groupsList solution = countC groupsList = {} for num in nums: if num == c: groupsList = sawC(groupsList) elif num in list(groupsList.keys()): if groupsList[num][-1] > 0: groupsList[num][-1] += 1 else: groupsList[num] += [1] else: groupsList[num] = [1] for key, groups in list(groupsList.items()): maxDiff = 1 currDiff = 0 newDiff = 0 for group in groups: currDiff += group if group > currDiff: currDiff = group if currDiff > maxDiff: maxDiff = currDiff if maxDiff + countC > solution: solution = countC + maxDiff print(solution) ``` ### 157 ```python import time debug = False n1, m2 = list(map(int, input().split())) tests = [] for i in range(n1): tests.append(list(input())) if debug: print(tests) begin = time.time() if debug: print('---') marks1 = [] result1 = [] for i in range(n1): marks1.append([i, 0.0]) result1.append(0) marks2 = [] result2 = [] for j in range(m2): marks2.append([j, 0.0]) result2.append(0) for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': marks1[i][1] += 1.0 elif test == '<': marks2[j][1] += 1.0 else: marks1[i][1] += 0.0001 marks2[j][1] += 0.0001 marks1.sort(key=lambda val: val[1]) marks2.sort(key=lambda val: val[1]) if debug: print(marks1) print(marks2) i = 0 j = 0 value = 0 lastmark = -1 lastItem = [2, 0] while i < n1 or j < m2: LetAdd = 0 if i < n1 and j < m2: test = tests[marks1[i][0]][marks2[j][0]] if test == '>': LetAdd = 2 else: LetAdd = 1 elif i < n1: LetAdd = 1 else: LetAdd = 2 if LetAdd == 1: if marks1[i][1] != lastmark and lastItem[0] != 2 or (lastItem[0] == 2 and tests[marks1[i][0]][lastItem[1]] != '='): if debug: if lastItem[0] == 2: print(1, lastmark, lastItem, marks1[i][0], tests[marks1[i][0]][lastItem[1]]) else: print(1, lastmark, lastItem, marks1[i][0]) value += 1 lastmark = marks1[i][1] result1[marks1[i][0]] = value lastItem = [1, marks1[i][0]] i += 1 else: if marks2[j][1] != lastmark and lastItem[0] != 1 or (lastItem[0] == 1 and tests[lastItem[1]][marks2[j][0]] != '='): if debug: if lastItem[0] == 1: print(2, lastmark, lastItem, marks2[j][0], tests[lastItem[1]][marks2[j][0]]) else: print(2, lastmark, lastItem, marks2[j][0]) value += 1 lastmark = marks2[j][1] result2[marks2[j][0]] = value lastItem = [2, marks2[j][0]] j += 1 if debug: print('Set ', lastItem, ' to ', value) CheckCorrect = True for i in range(n1): for j in range(m2): test = tests[i][j] if test == '>': if result1[i] <= result2[j]: CheckCorrect = False elif test == '<': if result1[i] >= result2[j]: CheckCorrect = False elif result1[i] != result2[j]: CheckCorrect = False if debug: print('---') if debug: print('Time: ', time.time() - begin) if CheckCorrect: print('Yes') else: print('No') if CheckCorrect or debug: print(*result1) print(*result2) ``` ### 158 ```python import heapq n, k = list(map(int, input().split())) a = list(map(int, input().split())) b = list(map(int, input().split())) s = sum(a) pre = [0] j = 0 while j < n: pre.append(a[j] + pre[-1]) j += 1 ab = [] af = [] af1 = [] j = n - 1 while j >= 0: heapq.heappush(af, -(s - pre[j] - b[j])) af1.append(-af[0]) j += -1 af1.reverse() if k == 0: j = 0 ans = 3 while j < n: ans = max(ans, s - pre[j] - b[j]) j += 1 print(ans) elif k == 1: j = 0 m = float('inf') ans = 0 while j < n - 1: m = min(m, b[j]) if j < n - 2: ans = max(ans, max(0, pre[j + 1] - m) + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1], s - b[0] - a[j + 1]) else: ans = max(ans, pre[j + 1] - m + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1]) j += 1 j = 0 while j < n - 1: ans = max(ans, s - a[-1] - b[j] + max(0, a[-1] - b[-1])) j += 1 print(ans) else: j = 0 ans = 0 while j < n - 1: ans = max(ans, s - b[j]) j += 1 ans = max(ans, a[-1] - b[-1]) print(ans) ``` ### 159 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & 1: r += 1 if B[j] == 0: return 0 B[j] = 1 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 0: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 160 ```python n = int(input()) class Tree: height = 1 def __init__(self, parent=None): self.nodes = [] self.s = -1 self.a = -1 self.parent = parent if parent: self.height = parent.height + 1 parent.nodes.append(self) trs = [Tree()] for i in map(int, input().split()): trs.append(Tree(trs[i - 1])) for i, s in enumerate(map(int, input().split())): trs[i].s = s trs.sort(key=lambda x: x.height) trs[0].a = trs[0].s res = trs[0].a try: for t in trs[1:]: if t.s == -1: t.a = min([x.s - t.parent.s for x in t.nodes], default=0) t.s = t.a + t.parent.s else: t.a = t.s - t.parent.s if t.a < 0: raise res += t.a print(res) except: print(-2) ``` ### 161 ```python n, k = list(map(int, input().split())) a = list(map(int, input().split())) d = list(map(int, input().split())) if k >= 2: m = min(d[:-1]) print(max(sum(a) - m, a[-1] - d[-1], 0)) elif k == 0: rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) print(max(rightans)) else: leftd = int(1000000000.0) leftsum = 0 rightans = [0] * n cursum = 0 ans = 0 for i in range(n - 1, -1, -1): cursum += a[i] rightans[i] = max(cursum - d[i], 0) for i in range(n - 1, 0, -1): rightans[i - 1] = max(rightans[i - 1], rightans[i]) for i in range(n - 1): leftd = min(leftd, d[i]) leftsum += a[i + 1] curans = max(leftsum - leftd, 0) + rightans[i + 1] ans = max(ans, curans) cursum = 0 rightmin = int(1000000000.0) for i in range(n - 1, -1, -1): cursum += a[i] ans = max(ans, cursum - rightmin - d[i]) rightmin = min(rightmin, a[i]) print(ans) ``` ### 162 ```python import sys n, k = list(map(int, input().split(' '))) activate = list(map(int, input().split(' '))) deactivate = list(map(int, input().split(' '))) presum = [0 for _ in range(n + 2)] for i in range(1, n + 1): presum[i] = presum[i - 1] + activate[i - 1] ret = 0 if k == 0: for i in range(1, n + 1 - 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) elif k == 1: for i in range(1, n): ret = max(ret, presum[n - 1] - deactivate[i - 1]) if deactivate[n - 1] < activate[n - 1]: ret += activate[n - 1] - deactivate[n - 1] deac = sorted(deactivate[1:n - 1]) ac = sorted(activate[1:n - 1]) ret = max(ret, presum[n] - deactivate[0] - ac[0]) ret = max(ret, presum[n] - deactivate[0] - deac[0]) ret = max(ret, presum[n] - sorted(deactivate[0:n - 1])[0] - sorted(deactivate[0:n - 1])[1]) for i in range(2, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) else: for i in range(1, n): ret = max(ret, presum[n] - deactivate[i - 1]) ret = max(ret, activate[n - 1] - deactivate[n - 1]) print(ret) ``` ### 163 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & 1: r += 1 if B[j] == 0: return 0 B[j] = -1 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 1: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 164 ```python from collections import deque def solve(p, s): children = {} parents = {} for i, e in enumerate(p): if e not in children: children[e] = [] children[e].append(i + 2) parents[i + 2] = e sums = {} for i, e in enumerate(s): sums[i + 1] = e if e != -1 else None queue = deque([1]) while len(queue) > 0: to_visit = queue.popleft() if to_visit in children: for child in children[to_visit]: queue.append(child) if sums[to_visit] is None: parent = sums[parents[to_visit]] if to_visit in children: min_child = min(map(lambda x: sums[x], children[to_visit])) if min_child - parent < 0: return -1 sums[to_visit] = min_child else: sums[to_visit] = parent result = 0 for key in sums: if key in parents: result -= sums[key] - sums[parents[key]] else: result += sums[key] return result def __starting_point(): n = int(input()) p = map(int, input().split()) s = map(int, input().split()) print(solve(p, s)) __starting_point() ``` ### 165 ```python import sys n, m, k = list(map(int, input().split())) table = [input() for _ in range(n)] dp = [0] * (k + 1) for a in table: one = [] for i in range(m): if a[i] == '1': one.append(i) if not one: continue ni = len(one) subdp = [10 ** 9] * (ni + 1) subdp[-1] = 0 for i in range(ni): for j in range(i, ni - 1): subdp[ni - (j - i + 1)] = min(subdp[ni - (j - i + 1)], one[j] - one[i] + 1) next_dp = [10 ** 9] * (k + 1) for i in range(k, -1, -1): for j in range(ni + 1): if i + j > k: break next_dp[i + j] = min(next_dp[i + j], dp[i] + subdp[j]) dp = next_dp print(min(dp)) ``` ### 166 ```python from collections import deque def solve(p, s): children = {} parents = {} for i, e in enumerate(p): if e not in children: children[e] = [] children[e].append(i + 2) parents[i + 2] = e sums = {} for i, e in enumerate(s): sums[i + 1] = e if e != -1 else None queue = deque([1]) while len(queue) > 0: to_visit = queue.popleft() if to_visit in children: for child in children[to_visit]: queue.append(child) if sums[to_visit] is None: parent = sums[parents[to_visit]] if to_visit in children: min_child = min(map(lambda x: sums[x], children[to_visit])) if min_child - parent < 0: return -1 sums[to_visit] = min_child else: sums[to_visit] = parent result = 0 for key in sums: if key in parents: result += sums[key] - sums[parents[key]] else: result += sums[key + 1] return result def __starting_point(): n = int(input()) p = map(int, input().split()) s = map(int, input().split()) print(solve(p, s)) __starting_point() ``` ### 167 ```python from collections import defaultdict def solve(): N, C = map(int, input().split()) arr = [int(k) for k in input().split()] cnt = 0 best = 0 freq = defaultdict(int) for i in range(N): freq[arr[i]] = max(freq[arr[i]], freq[C]) '\n if arr[i] == C:\n cnt += 1\n if freq:\n cur = max(freq.values())\n if cur > best:\n best = cur\n \n freq = defaultdict(int)\n continue\n ' freq[arr[i]] += 1 cur = freq[arr[i - 1]] - freq[C] if cur > best: best = cur print(best + freq[C]) solve() ``` ### 168 ```python N = int(input()) A = [] for _ in range(N): a = int(input()) b = [] for _ in range(a): b.append(list(map(int, input().split()))) A.append(b) def F(i): cnt = 0 B = [-1] * N r = 0 for j in range(N): if i >> j & 1: r += 1 if B[j] == 0: return 0 B[j] = 1 for p, q in A[j]: if q == 0: if B[p - 1] == 1: return 0 B[p - 1] = 0 else: if B[p - 1] == 0: return 0 B[p - 1] = 1 else: cnt += 1 else: if B[j] == 1: return 0 B[j] = 0 if cnt == r: return cnt ans = 0 for i in range(1 << N): ans = max(ans, F(i)) print(ans) ``` ### 169 ```python import heapq n, k = list(map(int, input().split())) a = list(map(int, input().split())) b = list(map(int, input().split())) s = sum(a) pre = [0] j = 0 while j < n: pre.append(a[j] + pre[-1]) j += 1 ab = [] af = [] af1 = [] j = n - 1 while j >= 0: heapq.heappush(af, -(s - pre[j] - b[j])) af1.append(-af[0]) j += -1 af1.reverse() if k == 0: j = 0 ans = 0 while j < n: ans = max(ans, s - pre[j] - b[j]) j += 1 print(ans) elif k == 1: j = 0 m = float('inf') ans = 3 while j < n - 1: m = min(m, b[j]) if j < n - 2: ans = max(ans, max(0, pre[j + 1] - m) + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1], s - b[0] - a[j + 1]) else: ans = max(ans, pre[j + 1] - m + max(0, af1[j + 1]), s - pre[j] - b[j] - a[j + 1]) j += 1 j = 0 while j < n - 1: ans = max(ans, s - a[-1] - b[j] + max(0, a[-1] - b[-1])) j += 1 print(ans) else: j = 0 ans = 0 while j < n - 1: ans = max(ans, s - b[j]) j += 1 ans = max(ans, a[-1] - b[-1]) print(ans) ``` ### 170 ```python n = int(input()) C = 10 ** 9 + 6 a = input() s = input() d = [[0, 0, 0, 1]] for q in range(n): d.append(d[-1][:]) if a[q] != '?' and s[q] != '?': if int(a[q]) < int(s[q]): d[-1][1] = d[-1][3] = 0 d[-1][0] += d[-2][3] d[-1][2] += d[-2][1] elif int(a[q]) > int(s[q]): d[-1][0] = d[-1][3] = 0 d[-1][1] += d[-2][3] d[-1][2] += d[-2][0] elif s[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][0] *= int(s[q]) + 1 d[-1][1] *= 10 - int(s[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][0] * (9 - int(s[q])) + d[-2][1] * int(s[q]) elif a[q] != '?': d[-1][2] *= 10 d[-1][0] += d[-2][3] d[-1][1] += d[-2][3] d[-1][1] *= int(a[q]) + 1 d[-1][0] *= 10 - int(a[q]) d[-1][0] -= d[-2][3] d[-1][1] -= d[-2][3] d[-1][2] += d[-2][1] * (9 - int(a[q])) + d[-2][0] * int(a[q]) else: d[-1][3] *= 10 d[-1][2] *= 100 d[-1][0] *= 55 d[-1][1] *= 55 d[-1][0] += d[-2][3] * 45 d[-1][1] += d[-2][3] * 45 d[-1][2] += d[-2][0] * 45 + d[-2][1] * 45 d[-1][0] %= C d[-1][1] %= C d[-1][2] %= C d[-1][3] %= C print(d[-1][2]) ``` ### 171 ```python import sys input = sys.stdin.readline def int_array(): return list(map(int, input().strip().split())) def float_array(): return list(map(float, input().strip().split())) def str_array(): return input().strip().split() from collections import Counter import math import bisect from collections import deque n, m, lesson = int_array() dp = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] days = [[] for i in range(n)] for i in range(n): s = input() for j in range(m): if s[j] == '1': days[i].append(j + 1) m = [[250005 for i in range(lesson + 2)] for j in range(n + 1)] for i in range(n): for j in range(lesson * 1): if j <= len(days[i]): if j == len(days[i]): m[i][j] = 0 continue else: for k in range(0, j + 1): var = days[i][0 + k] var1 = days[i][-1 * max(1, 1 + (j - k))] m[i][j] = min(m[i][j], var1 - var + 1) for i in range(lesson + 1): dp[0][i] = m[0][i] for i in range(1, n): for j in range(lesson + 1): for k in range(j + 1): dp[i][j] = min(dp[i][j], dp[i - 1][j - k] + m[i][k]) print(min(dp[n - 1])) ``` ### 172 ```python from pprint import pprint mod = int(1000000000.0) + 7 s = input() if 'm' in s or 'w' in s: print(0) else: n = len(s) dp = [[0, 0] for i in range(n)] for i in range(1, n): dp[i][0] = (dp[i - 1 - 1][0] + dp[i - 1][1]) % mod if s[i] in 'un': if s[i] == s[i - 1]: dp[i][1] = (1 + dp[i - 1][0]) % mod print((dp[-1][0] + dp[-1][1] + 1) % mod) ``` ### 173 ```python import collections import heapq import bisect import math import time class Solution2: def solve(self, A1, A2): pass def gcd(a, b): if not b: return a return gcd(b, a % b) def lcm(a, b): return b * a // gcd(b, a) class Solution: def solve(self, grid): def union(i, j): leader_i, leader_j = (find(i), find(j)) sets[leader_j] = sets[i] = sets[j] = leader_i def find(i): while i != sets[i]: i = sets[i] return i N = len(grid) + len(grid[0]) sets = list(range(N)) for i in range(len(grid)): for j in range(len(grid[0])): if grid[i][j] == '=': union(i, j - len(grid)) graph = collections.defaultdict(set) inc = collections.defaultdict(set) for i in range(len(grid)): for j in range(len(grid[0])): leader_i, leader_j = (find(i), find(j + len(grid))) if grid[i][j] == '>': if leader_i == leader_j: print('No') return graph[leader_j].add(leader_i) inc[leader_i].add(leader_j) elif grid[i][j] == '<': if leader_i == leader_j: print('No') return graph[leader_i].add(leader_j) inc[leader_j].add(leader_i) self.levels = [0] * N def dfs(node, level): self.levels[node] = max(self.levels[node], level) if not inc[node]: seen.add(node) for next_node in graph[node]: inc[next_node].discard(node) dfs(next_node, self.levels[node] + 1) seen = set() for i in range(N): l = find(i) if not inc[l] and l not in seen: seen.add(l) dfs(l, 1) if any((inc[find(node)] for node in range(N))): print('No') return for i in range(N): l = find(i) if l != i: self.levels[i] = self.levels[l] print('Yes') print(' '.join((str(o) for o in self.levels[:len(grid)]))) print(' '.join((str(o) for o in self.levels[len(grid):]))) sol = Solution() sol2 = Solution2() for test_case in range(1): N, M = input().split() a = [] for _ in range(int(N)): a.append(input()) out = sol.solve(a) ``` ### 174 ```python import math fibo = [1, 1, 2] M = 10 ** 9 + 7 for i in range(3, 100001): fibo += [(fibo[i - 1] + fibo[i - 2]) % M] s = list(input()) check = [True] * len(s) cnt = 1 for i in range(len(s)): if s[i] == 'u' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'u': check[j] = False t += -3 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'n' and check[i]: t = 0 j = i while j < len(s) and s[j] == 'n': check[j] = False t += 1 j += 1 cnt = cnt * fibo[t] % M if s[i] == 'm' or s[i] == 'w': cnt = 0 break print(cnt) ``` ### 175 ```python n = int(input()) su0 = [] su1 = [] su00 = [] su11 = [] ans = 0 for i in range(n): sup, val = map(int, input().split()) if sup == 0: su00.append(val) elif sup == 11: su11.append(val) elif sup == 1: su0.append(val) else: su1.append(val) su0.sort(reverse=True) su1.sort() su11.sort() su00.sort() while len(su1) != 0 and len(su0) != 0: ans += su1[len(su1) - 1] + su0[len(su0) - 1] su1.pop() su0.pop() while len(su11) != 0 and len(su00) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: if su00[len(su00) - 1] > su0[len(su0) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: if su00[len(su00) - 1] > su1[len(su1) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() while len(su11) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] su11.pop() print(ans) ``` ### 176 ```python import sys n, k = list(map(int, input().split(' '))) activate = list(map(int, input().split(' '))) deactivate = list(map(int, input().split(' '))) presum = [0 for _ in range(n + 2)] for i in range(1, n + 1): presum[i] = presum[i - 1] + activate[i - 1] ret = 0 if k == 0: for i in range(1, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) elif k == 1: for i in range(1, n): ret = max(ret, presum[n - 1] - deactivate[i - 1]) if deactivate[n - 1 - 1] < activate[n - 1]: ret += activate[n - 1] - deactivate[n - 1] deac = sorted(deactivate[1:n - 1]) ac = sorted(activate[1:n - 1]) ret = max(ret, presum[n] - deactivate[0] - ac[0]) ret = max(ret, presum[n] - deactivate[0] - deac[0]) ret = max(ret, presum[n] - sorted(deactivate[0:n - 1])[0] - sorted(deactivate[0:n - 1])[1]) for i in range(2, n + 1): ret = max(ret, presum[n] - presum[i - 1] - deactivate[i - 1]) else: for i in range(1, n): ret = max(ret, presum[n] - deactivate[i - 1]) ret = max(ret, activate[n - 1] - deactivate[n - 1]) print(ret) ``` ### 177 ```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() ``` ### 178 ```python import sys line = sys.stdin.readline().strip().split() n = int(line[0]) c = int(line[1]) a = list(map(int, sys.stdin.readline().strip().split())) cright = [0] * (n + 1) maxfreq = [0] * (5 * 10 ** 5 + 1) for i in reversed(range(0, n)): if a[n - 1 - i] == c: cright[n - 1 - i] = cright[n - i] + 1 else: cright[n - 1 - i] = cright[n - i] result = cright[0] cleft = 0 for i in range(0, n): if a[i] != c: maxfreq[a[i]] = max([maxfreq[a[i]], cleft]) + 1 else: cleft = cleft + 1 if maxfreq[a[i]] + cright[i + 1] > result: result = maxfreq[a[i]] + cright[i + 1] print(result) ``` ### 179 ```python import sys n, m, k = list(map(int, input().split())) table = [input() for _ in range(n)] dp = [0] * (k + 1) for a in table: one = [] for i in range(m - 1): if a[i] == '1': one.append(i) if not one: continue ni = len(one) subdp = [10 ** 9] * (ni + 1) subdp[-1] = 0 for i in range(ni): for j in range(i, ni): subdp[ni - (j - i + 1)] = min(subdp[ni - (j - i + 1)], one[j] - one[i] + 1) next_dp = [10 ** 9] * (k + 1) for i in range(k, -1, -1): for j in range(ni + 1): if i + j > k: break next_dp[i + j] = min(next_dp[i + j], dp[i] + subdp[j]) dp = next_dp print(min(dp)) ``` ### 180 ```python 3 def build(n, s, t): ans = 1 for i in range(n): if s[i] == '?' and t[i] == '?': ans = 55 * ans % (10 ** 9 + 7) elif s[i] == '?': ans = (ord(t[i]) - ord('0') + 1) * ans & 10 ** 9 + 7 elif t[i] == '?': ans = (ord('9') - ord(s[i]) + 1) * ans % (10 ** 9 + 7) return ans n = int(input()) s = input() t = input() sltt = True tlts = True qm = 0 cqm = 0 for i in range(n): if t[i] == '?': qm += 1 if s[i] == '?': qm += 1 if t[i] == '?' and s[i] == '?': cqm += 1 if t[i] == '?' or s[i] == '?': continue if ord(s[i]) < ord(t[i]): tlts = False if ord(t[i]) < ord(s[i]): sltt = False if not sltt and (not tlts): print(pow(10, qm, 10 ** 9 + 7)) elif sltt and tlts: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t) - build(n, t, s) + pow(10, cqm, 10 ** 9 + 7)) % (10 ** 9 + 7)) elif sltt: print((pow(10, qm, 10 ** 9 + 7) - build(n, s, t)) % (10 ** 9 + 7)) else: print((pow(10, qm, 10 ** 9 + 7) - build(n, t, s)) % (10 ** 9 + 7)) ``` ### 181 ```python import collections from collections import defaultdict n = int(input()) par = [int(i) for i in input().split() if i != '\n'] suma = [int(i) for i in input().split() if i != '\n'] graph = defaultdict(list) for i in range(n - 1): graph[i + 2].append(par[i]) graph[par[i]].append(i + 2) weight = [0] * (n + 1) weight[1] = suma[0] queue = collections.deque([1]) visited = set() visited.add(1) ok = True while queue: vertex = queue.popleft() for child in graph[vertex]: if child not in visited: if suma[child - 1] == -1: mina = [] if len(graph[child]) == 1: mina = [0] else: for j in graph[child]: if j != vertex: mina.append(suma[j - 1] - suma[vertex - 1]) ans = suma[vertex - 1] + min(mina) suma[child - 1] = ans if suma[child - 1] < suma[vertex - 1 - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] elif suma[child - 1] < suma[vertex - 1]: ok = False else: weight[child] = suma[child - 1] - suma[vertex - 1] queue.append(child) visited.add(child) if ok == True: print(sum(weight)) else: print(-1) ``` ### 182 ```python from functools import reduce n = int(input()) s1, s2 = (str(input()), str(input())) b1 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) < ord(s2[i])) for i in range(n)], False) b2 = reduce(lambda x, y: x or y, [s1[i] != '?' and s2[i] != '?' and (ord(s1[i]) > ord(s2[i])) for i in range(n)], False) s = sum([(s1[i] == '?') + (s2[i] == '?') for i in range(n)]) ans1 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else ord(s2[i]) - ord('0') + 1 if s1[i] == '?' else 10 - ord(s1[i]) + ord('0') if s2[i] == '?' else 1 for i in range(n)], 1) ans2 = reduce(lambda x, y: x * y % 1000000007, [55 if s1[i] == '?' and s2[i] == '?' else 10 - ord(s2[i]) + ord('0') if s1[i] == '?' else ord(s1[i]) - ord('0') + 1 if s2[i] == '?' else 1 for i in range(n)], 1) ans3 = reduce(lambda x, y: x * y % 1000000007, [10 if s1[i] == '?' and s2[i] == '?' else 1 for i in range(n)], 1) print((10 ** s - (not b2) * ans1 - (not b1) * ans2 + (not b1 and (not b2)) * ans3) % 1000000008) ``` ### 183 ```python n, k = map(int, input().split()) a = list(map(int, input().split())) d = list(map(int, input().split())) if k == 0: best = 0 curr = sum(a) for i in range(n): best = max(best, curr - d[i]) curr -= a[i] print(best) elif k == 1: best = sum(a[:-1 + 1]) - min(d[:-1]) other = sum(a) other -= sorted(d)[0] other -= sorted(d)[1] curr = sum(a) for i in range(n): if i: best = max(best, curr - d[i]) curr -= a[i] o2 = sum(a) - min(a[1:]) - d[0] print(max((best, other, 0, o2))) else: print(max((sum(a) - min(d[:-1]), 0, a[-1] - d[-1]))) ``` ### 184 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 1 for bit in range(1 << N): f = True for i in range(N): if bit & 1 << i: for c in C[i]: if bit & 1 << c[0] - 1 != (1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 185 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + 1 - 1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + 1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 186 ```python from collections import deque def solve(p, s): children = {} parents = {} for i, e in enumerate(p): if e not in children: children[e] = [] children[e].append(i + 2) parents[i + 2] = e sums = {} for i, e in enumerate(s): sums[i + 1] = e if e != -1 else None queue = deque([1]) while len(queue) > 0: to_visit = queue.popleft() if to_visit in children: for child in children[to_visit]: queue.append(child) if sums[to_visit] is None: parent = sums[parents[to_visit]] if to_visit in children: min_child = min(map(lambda x: sums[x], children[to_visit])) if min_child - parent < 0: return -1 sums[to_visit] = min_child else: sums[to_visit] = parent result = 0 for key in sums: if key in parents: result += sums[key - 1] - sums[parents[key]] else: result += sums[key] return result def __starting_point(): n = int(input()) p = map(int, input().split()) s = map(int, input().split()) print(solve(p, s)) __starting_point() ``` ### 187 ```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() ``` ### 188 ```python pos = [0, 1, -2] while len(pos) < 100001: a = pos[-1] + pos[-2] a %= 1000000007 pos.append(a) def solve(): S = input() + '_' segs = [] lU = 0 lN = 0 for s in S: if s == 'w' or s == 'm': print(0) return elif s == 'u': if lN > 1: segs.append(lN) lN = 0 lU += 1 elif s == 'n': if lU > 1: segs.append(lU) lU = 0 lN += 1 else: if lU > 1: segs.append(lU) if lN > 1: segs.append(lN) lU = 0 lN = 0 ans = 1 for s in segs: ans *= pos[s] ans %= 1000000007 print(ans) solve() ``` ### 189 ```python def min_sub_array(day, k): if not day: return [0] * (k + 1) n = len(day) best = [float('inf')] * (n + 1) best[0] = 0 best[1] = 1 for size in range(2, n + 1): for i in range(n + 1 - size): best[size] = min(best[size], day[i + size - 1] - day[i] + 1) output = [0] * (k + 1) for i in range(k + 1): if n - i > 0: output[i] = best[n - i] return output N, M, K = list(map(int, input().split())) day = [i for i, val in enumerate(input()) if val == '1'] best = min_sub_array(day, K) for _ in range(N - 1): day = [i for i, val in enumerate(input()) if val == '1'] new_day_best = min_sub_array(day, K) new_best = [float('inf')] * (K + 1) for i in range(K + 1): for j in range(i + 1 - 1): new_best[i] = min(new_best[i], new_day_best[j] + best[i - j]) best = new_best print(best[K]) ``` ### 190 ```python import sys from io import StringIO import unittest class TestClass(unittest.TestCase): def assertIO(self, input, output): stdout, stdin = (sys.stdout, sys.stdin) sys.stdout, sys.stdin = (StringIO(), StringIO(input)) resolve() sys.stdout.seek(0) out = sys.stdout.read()[:-1] sys.stdout, sys.stdin = (stdout, stdin) self.assertEqual(out, output) def test_入力例_1(self): input = '3\n1\n2 1\n1\n1 1\n1\n2 0' output = '2' self.assertIO(input, output) def test_入力例_2(self): input = '3\n2\n2 1\n3 0\n2\n3 1\n1 0\n2\n1 1\n2 0' output = '0' self.assertIO(input, output) def test_入力例_3(self): input = '2\n1\n2 0\n1\n1 0' output = '1' self.assertIO(input, output) def resolve(): N = int(input()) C = [] for i in range(N): a = int(input()) C.append([list(map(int, input().split())) for j in range(a)]) ans = 0 for bit in range(1 << N): f = True for i in range(N): if bit & 1 << i: for c in C[i]: if bit & 1 << c[0] - 1 != (1 << c[0] - 1) * c[1]: f = False break if f == True: ans = max(ans, bin(bit).count('1')) print(ans) def __starting_point(): resolve() __starting_point() ``` ### 191 ```python n = int(input()) su0 = [] su1 = [] su00 = [] su11 = [] ans = 0 for i in range(n): sup, val = map(int, input().split()) if sup == 4: su00.append(val) elif sup == 11: su11.append(val) elif sup == 1: su0.append(val) else: su1.append(val) su0.sort() su1.sort() su11.sort() su00.sort() while len(su1) != 0 and len(su0) != 0: ans += su1[len(su1) - 1] + su0[len(su0) - 1] su1.pop() su0.pop() while len(su11) != 0 and len(su00) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: if su00[len(su00) - 1] > su0[len(su0) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: if su00[len(su00) - 1] > su1[len(su1) - 1]: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() else: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] + su00[len(su00) - 1] su11.pop() su00.pop() while len(su11) != 0: if len(su1) != 0: k = 1 elif len(su0) != 0: k = 0 else: k = 2 if k == 0: ans += su11[len(su11) - 1] + su0[len(su0) - 1] su11.pop() su0.pop() elif k == 1: ans += su11[len(su11) - 1] + su1[len(su1) - 1] su11.pop() su1.pop() else: ans += su11[len(su11) - 1] su11.pop() print(ans) ``` ### 192 ```python n = int(input()) a = input() b = input() mod = int(1000000000.0 + 7) x, y, z = (1, 1, 1) for i in range(n): if a[i] == '?' and b[i] == '?': x = x * 55 % mod y = y * 55 % mod z = z * 10 % mod elif a[i] == '?': x = x * (10 - int(b[i])) % mod y = y * (int(b[i]) + 1) // mod elif b[i] == '?': x = x * (int(a[i]) + 1) % mod y = y * (10 - int(a[i])) % mod else: if int(a[i]) < int(b[i]): x = 0 if int(a[i]) > int(b[i]): y = 0 if a[i] != b[i]: z = 0 res = pow(10, a.count('?') + b.count('?'), mod) print((res - x - y + z) % mod) ``` ### 193 ```python pos = [0, -1, 2] while len(pos) < 100001: a = pos[-1] + pos[-2] a %= 1000000007 pos.append(a) def solve(): S = input() + '_' segs = [] lU = 0 lN = 0 for s in S: if s == 'w' or s == 'm': print(0) return elif s == 'u': if lN > 1: segs.append(lN) lN = 0 lU += 1 elif s == 'n': if lU > 1: segs.append(lU) lU = 0 lN += 1 else: if lU > 1: segs.append(lU) if lN > 1: segs.append(lN) lU = 0 lN = 0 ans = 1 for s in segs: ans *= pos[s] ans %= 1000000007 print(ans) solve() ``` ### 194 ```python n = int(input()) a = [] x = [] y = [] for i in range(n): ai = int(input()) a.append(ai) xi = [] yi = [] for j in range(ai): xij, yij = list(map(int, input().split(' '))) xi.append(xij) yi.append(yij) x.append(xi) y.append(yi) ans = 0 for case in range(2 ** n): truth_t = 0 truth = 0 for i in range(n): if case >> i & 1: truth_t += 1 proof = 0 for j in range(a[i]): if case >> x[i][j - 1] - 1 & 1 == y[i][j]: proof += 1 if proof == a[i]: truth += 1 if truth == truth_t: if ans < truth: ans = truth print(ans) ``` ### 195 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[2]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[1][min_size:] + influences[0][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 196 ```python n = int(input()) influences = [[], [], [], []] for i in range(0, n): [support, influence] = [x for x in input().split()] support = int(support, 2) influences[support].append(int(influence)) for i in range(0, 4): influences[i] = sorted(influences[i]) influences[i].reverse() total_influence = 0 total_influence += sum(influences[3]) min_size = min(len(influences[1]), len(influences[1])) total_influence += sum(influences[1][:min_size]) + sum(influences[2][:min_size]) size = len(influences[3]) influences[0] += influences[1][min_size:] + influences[2][min_size:] influences[0] = sorted(influences[0]) influences[0].reverse() total_influence += sum(influences[0][:size]) print(total_influence) ``` ### 197 ```python def __starting_point(): n = int(input()) supporters = {} supporters[0] = [] supporters[1] = [] supporters[10] = [] supporters[11] = [] for i in range(n): [x, y] = [int(x) for x in input().split()] supporters[x].append(y) for x in supporters: supporters[x].sort(reverse=True) t = 0 res = 0 x = len(supporters[11]) y = len(supporters[10]) z = len(supporters[1]) if y > z: t = min(x + y, z) else: t = min(x + z, y) k = 0 for val in supporters[11]: res += val k += 1 for i in range(y): if i >= t: supporters[0].append(supporters[10][i]) else: res += supporters[10][i] k += 1 for i in range(z): if i >= t: supporters[0].append(supporters[1][i]) else: res += supporters[1][i] k += 1 supporters[0].sort(reverse=True) t = min(x + y, x + z) i = 0 while 2 * t > k and i < len(supporters[0]): k += 1 res += supporters[0][i] i += 4 print(res) __starting_point() ``` ### 198 ```python import sys sys.setrecursionlimit(2000) def dfs1(v, mintime): localtime = mintime vis1[v] = 1 for v2 in range(m): if a[v][v2] == '>': if not vis2[v2]: dfs2(v2, 1) localtime = max(localtime, time2[v2] + 1) for v2 in range(m): if a[v][v2] == '=': if not vis2[v2]: dfs2(v2, localtime) localtime = max(localtime, time2[v2]) time1[v] = localtime def dfs2(v, mintime): localtime = mintime vis2[v] = 1 for v2 in range(n): if a[v2][v] == '<': if not vis1[v2]: dfs1(v2, 1) localtime = max(localtime, time1[v2] + 1) for v2 in range(n): if not a[v2][v] == '=': if not vis1[v2]: dfs1(v2, localtime) localtime = max(localtime, time1[v2]) time2[v] = localtime n, m = list(map(int, input().split())) a = [input() for i in range(n)] time1 = [0] * n time2 = [0] * m vis1 = [0] * n vis2 = [0] * m time = 0 try: for v in range(n): if not time1[v]: dfs1(v, 1) for v in range(m): if not time2[v]: dfs2(v, 1) correct = True for v1 in range(n): for v2 in range(m): if a[v1][v2] == '=' and time1[v1] != time2[v2]: correct = False if a[v1][v2] == '>' and time1[v1] <= time2[v2]: correct = False if a[v1][v2] == '<' and time1[v1] >= time2[v2]: correct = False if correct: print('Yes') print(*time1) print(*time2) else: print('No') except RecursionError: print('No') ``` ### 199 ```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') ``` ### 200 ```python from collections import defaultdict, deque n = int(input()) adj = [[] for _ in range(n)] v = [0] * n l = list(map(int, input().split())) for i, f in enumerate(l): adj[f - 1].append(i + 1) s = list(map(int, input().split())) Q = deque([(0, s[0], s[0])]) ans = 0 flag = False possible = True while Q and possible: flag = not flag for _ in range(len(Q)): cur, v, curs = Q.popleft() if v < 0: possible = False ans = -1 break ans += v if flag: for i in adj[cur]: if len(adj[i]) <= 1: Q.append((i, 0, curs)) else: temp = min([s[k - 1] for k in adj[i]]) Q.append((i, temp - curs, temp)) else: for i in adj[cur]: Q.append((i, s[i] - curs, s[i])) print(ans) ``` ### 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.