problem_id
stringclasses
428 values
submission_id
stringlengths
10
10
status
stringclasses
2 values
code
stringlengths
5
816
p02556
s049258127
Accepted
n=int(input()) tens=[] for i in range(n): x,y=map(int,input().split()) tens.append([x,y]) tasu=[] hiku=[] for i in range(n): tasu.append(tens[i][0]+tens[i][1]) hiku.append(tens[i][0]-tens[i][1]) #print(tasu,hiku) a=max(tasu)-min(tasu) b=max(hiku)-min(hiku) print(max(a,b))
p03637
s013185472
Wrong Answer
n=int(input()) a=list(map(int, input().split())) x = 0 y = 0 for i in a: if i %2 != 0: x+=1 elif i%4 == 0: y+=1 if y >=x: print('Yes') else: if x+y == len(a): if y == x-1: print('Yes') print('No')
p03087
s061612435
Accepted
N, Q = map(int, input().split()) S = input() A = [0, 0] for i in range(1, N): if S[i - 1] == 'A' and S[i] == 'C': A.append(A[i] + 1) else: A.append(A[i]) for i in range(Q): l, r = map(int, input().split()) print(A[r] - A[l])
p02731
s130924994
Accepted
import math import numpy as np L = int(input()) a0 = L/3 print(a0*a0*a0)
p03069
s791014284
Accepted
n = int(input()) s = input() s_list = [] for item in s: if item == '.': s_list.append(0) else: s_list.append(1) min_val = s_list.count(0) left_val = 0 right_val = s_list.count(0) for i in range(len(s_list)): if s_list[i] == 0: right_val -= 1 min_val = min(left_val + right_val, min_val) else: left_val += 1 print(min_val)
p02554
s342273208
Accepted
import sys input = sys.stdin.readline N = int(input()) if N == 1: print(0) exit(0) mod = 10 ** 9 + 7 res = pow(10, N, mod) - pow(9, N, mod) * 2 + pow(8, N, mod) print(res % mod)
p03345
s658020586
Accepted
#A - Fairness A,B,C,K = map(int, input().split()) if K % 2 == 0: ans = A - B else: ans = B - A if abs(ans) >= 10**18: print("Unfair") else: print(ans)
p03327
s092963762
Accepted
n = int(input()) if n < 1000: print("ABC") else: print("ABD")
p03861
s611050257
Accepted
a,b,x=map(int,input().split()) print(b//x-(a-1)//x)
p02743
s445595312
Accepted
a,b,c = map(int,input().split()) if c - b - a <= 0: print("No") elif 4*a*b < (c-b-a)**2: print("Yes") else: print("No")
p02971
s748012593
Accepted
import sys input = sys.stdin.readline def main(): N = int(input()) A = [] for _ in range(N): A.append(int(input())) first = max(A) idx = A.index(first) second = max(A[:idx]+A[idx+1:]) for i in range(N): if i == idx: print(second) else: print(first) if __name__ == "__main__": main()
p02627
s923378400
Accepted
input_line = input() if input_line.isupper() == True: print("A") else: print("a")
p02772
s332281585
Accepted
N = int(input()) A = list(map(int,input().split())) A_guu = [i for i in A if i % 2 == 0] A_ans = [i for i in A_guu if i % 3 == 0 or i % 5 == 0] # print(A_guu) # print(A_ans) if A_ans == A_guu: print("APPROVED") else: print("DENIED")
p03095
s745069011
Accepted
from collections import Counter MOD = 10**9 + 7 N = int(input()) S = input() c = Counter(S) ans = 1 for k in c.keys(): ans *= c[k]+1 ans %= MOD ans -= 1 print(ans)
p02729
s082077921
Accepted
N, M = map(int, input().split()) print(M*(M-1)//2+N*(N-1)//2)
p02939
s010005565
Wrong Answer
s = input() n = len(s) ans = 1 kar = s[0] for i in range(n-1): if kar == s[i+1]: kar = kar + s[i+1] elif kar != s[i+1]: kar = s[i+1] ans += 1 print(ans)
p03730
s000201692
Accepted
# -*- coding: utf-8 -*- a, b, c = map(int, input().split()) for i in range(1, b + 1): if (a * i) % b == c: print("YES") exit() print("NO")
p04029
s758751034
Accepted
def resolve(): n = int(input()) print(n*(n+1)//2) resolve()
p02695
s911565079
Accepted
N,M,Q=map(int, input().split()) X=[list(map(int, input().split())) for i in range(Q)] import itertools a=[] for i in range(1,M+1): a.append(i) A=list(itertools.combinations_with_replacement(a,N)) ans=0 for i in range(len(A)): K=A[i] p=0 for a,b,c,d in X: if K[b-1]-K[a-1]==c: p+=d ans=max(p,ans) print(ans)
p02819
s719314434
Wrong Answer
x = int(input()) ans = x while True: for i in range(2, ans): if ans % i == 0: continue else: print(ans) exit() ans += 1
p02947
s917555090
Accepted
N = int(input()) s = ["".join(sorted(input())) for i in range(N)] D = dict() for st in s: if st in D: D[st] += 1 else: D[st] = 1 ans = 0 for i in D: k = D[i] ans += (k*(k-1))//2 print(ans)
p02657
s189946788
Accepted
a,b = map(int,input().split()) print(a*b)
p03210
s858375791
Accepted
n=int(input()) if n==3 or n==5 or n==7: print("YES") else: print("NO")
p03309
s889451833
Accepted
n=int(input()) Ai=[int(i) for i in input().split()] Bi=[] for i in range(n): Bi.append(Ai[i]-(i+1)) Bi.sort() b=Bi[n//2] ans=0 for i in range(n): ans+=abs(Bi[i]-b) print(ans)
p03208
s791762700
Accepted
n,k=map(int,input().split()) hs=sorted([int(input()) for _ in range(n)]) m=float('inf') for l,h in zip(hs,hs[k-1:]): m=min(m,h-l) print(m)
p04005
s053255584
Accepted
a, b, c = map(int,input().split()) print(min(abs(a*b*((c-c//2)-c//2)), abs(a*c*((b-b//2)-b//2)), abs(c*b*((a-a//2)-a//2))))
p03625
s439444497
Wrong Answer
def find_max_rectangle(pair): """ Args: pair (list) Returns: area (int) """ if pair: M = max(pair) second_max = -1 for num in pair: if num != M and second_max < num: second_max = num return M * second_max else: return 0 n = int(input()) L = list(map(int, input().split())) L.sort() pair = [] prev = None while L: popped = L.pop() if prev == popped: pair.append(prev) prev = None else: prev = popped print(find_max_rectangle(pair))
p03286
s561726652
Accepted
N = int(input()) tmp = [] if(N == 0): print('0') else: while(abs(N)!=0): tmp.append(N%2) N = (N - N % 2) // -2 tmp.reverse() print(''.join([str(n) for n in tmp]))
p02801
s526350840
Wrong Answer
str1 = input() asc = ord(str1) + 1 print(asc) ans = chr(asc) print(ans)
p03637
s232662199
Accepted
n=int(input()) a=list(map(int,input().split())) b4=0 b2=0 b1=0 for i in range(n): if a[i]%4==0: b4+=1 elif a[i]%2==0: b2+=1 else: b1+=1 if b2==0: if b1<=b4+1: print("Yes") else: print("No") else: if b1<=b4: print("Yes") else: print("No")
p03324
s893495856
Wrong Answer
a, b = map(int, input().split()) if a == 0: if b == 100: print(b + 1) else: print(b) else: cand = 100 **a if b == 100**2 or 100**3: print(cand * b + 1) else: print(cand * b)
p02779
s327017140
Accepted
n = int(input()) s = [int(i) for i in input().split()] s.sort() flag = False for i in range (0,n-1): if s[i] == s[i+1]: flag = True break if flag == True: print("NO") else: print("YES")
p02640
s224371465
Wrong Answer
a = input() b = a.split(" ") x, y = int(b[0]), int(b[1]) if x * 2 <= y <= x * 4: print("yes") else: print("no")
p03962
s447023939
Wrong Answer
x=list(map(int,input().split())) x.sort() if (x[0]==x[1])or(x[1]==x[2]): print(2) elif x[0] == x[1] == x[2]: print(1) else: print(3)
p03126
s346371806
Accepted
#!/usr/bin/env python3 N,M = map(int,input().split()) lst = [i+1 for i in range(M)] for _ in range(N): tmp = list(map(int,input().split())) K = tmp[0] A = tmp[1:] lst = list(filter(lambda x: x in A,lst)) print(len(lst))
p02983
s498778356
Accepted
L, R = map(int, input().split()) if R - L >= 2019: mn = 0 else: l, r = L % 2019, R % 2019 mn = 2018 ** 2 for i in range(l, r + 1): for j in range(i + 1, r + 1): mn = min(mn, i * j % 2019) print(mn)
p04044
s944928391
Accepted
N, L = map(int, input().split()) S = [input() for _ in range(N)] S.sort() print(''.join(S))
p03455
s312345520
Wrong Answer
a,b=map(int,input().split()) if a*b%2==0: print("Even") else: print("odd")
p02678
s684161288
Wrong Answer
import collections N, M = map(int, input().split()) graph = [[] for _ in range(N)] t = [10**18] * N last = [-1] * N for _ in range(M): A, B = map(int, input().split()) A -= 1 B -= 1 graph[A].append(B) graph[B].append(A) q = collections.deque([[0, 0]]) count = 0 while q: tmp = q.pop() pos, time = tmp[0], tmp[1] for next_pos in graph[pos]: if time+1 < t[next_pos]: last[next_pos] = pos t[next_pos] = time+1 q.append([next_pos, time]) print('Yes') for n in last[1:]: print(n+1)
p02996
s405776700
Accepted
import heapq n = int(raw_input()) heap = [map(int, raw_input().split(' '))[::-1] for _ in range(n)] heapq.heapify(heap) #(deadline, duration) def f(heap): t = 0 while(heap): nd,d = heapq.heappop(heap) gap = nd - t gap -= d t += d while(heap and heap[0][0] == nd): _,v = heapq.heappop(heap) t += v gap -= v if gap < 0: return False return True print 'Yes' if f(heap) else 'No'
p02583
s508168175
Wrong Answer
N = int(input()) A = list(map(int, input().split())) A.sort() counter = 0 print(A) for i in A: print('i:'+str(i)) second = [m for m in A if i < m] for j in second: print('j:'+str(j)) third = [n for n in second if j < n] if len(third) > 0: for k in third: counter += 1 print(i,j,third[0]) print(counter)
p03360
s851440920
Accepted
L = list(map(int,input().split())) K = int(input()) print(sum(L) - max(L) + max(L) * 2 ** K)
p04043
s091095249
Wrong Answer
num_list = list(map(int, input().split())) if num_list.count(5) == 2 and num_list.count(7) == 1: print("Yes") else: print("No")
p02743
s216404010
Wrong Answer
a, b, c = list(map(int, input().split())) l = a + b + 2 * ((a*b)**(1/2)) r = c if l < r: print("Yes") else: print("No")
p03665
s764988417
Wrong Answer
n, p = map(int, input().split()) A = list(map(int, input().split())) if n>=2: print(pow(2, n)//2) else: print(1 if A[0]%2==p else 0)
p04031
s411993958
Accepted
N = int(input()) A = list(map(int, input().split())) ans = 0 if sum(A)%N == 0: x = sum(A)//N for i in range(N): ans += (x-A[i])**2 print(ans) else: x = sum(A)//N b = sum(A)//N+1 if sum(A)/N - x > b - sum(A)/N: x = b for i in range(N): ans += (x-A[i])**2 print(ans)
p02909
s698733452
Wrong Answer
t= ["Sunny", "Cloudy", "Rainy"] print(t[t.index(input())])
p02879
s203176743
Accepted
#!/usr/bin/env python3 # -*- coding: utf-8 -*- a,b = map(int, input().split()) if a >= 1 and a <= 9 and b >= 1 and b <= 9: print(a*b) else: print(-1)
p03544
s091260975
Accepted
import math import copy neko = 0 nuko = 0 n = int(input()) a = [0] * 100 a[0] = 2 a[1] = 1 for i in range(2,n+1): a[i] = a[i-1] + a[i-2] print(a[n])
p02627
s146959397
Wrong Answer
s=input() if s.islower()==True: print(s.upper()) else: print(s.lower())
p02973
s070783741
Accepted
def LIS(A): dp = [-A[0]] for a in A[1:]: if -a >= dp[-1]: dp.append(-a) else: dp[bisect_right(dp, -a)] = -a return len(dp) ################################################################################################################## import sys input = sys.stdin.readline from bisect import bisect_right N = int(input()) A = list(map(int, sys.stdin.readlines())) print(LIS(A))
p02631
s266233327
Wrong Answer
import numpy as np def main(): n = int(input()) a = [int(i) for i in input().split()] k = max(a).bit_length() c = np.zeros(n, dtype=np.int) for i in range(k): b = np.array([ai // 2**i % 2 for ai in a], dtype=np.int) if b.sum() % 2: b = 1 - b print(b) c += b * 2**i print(*c) if __name__ == '__main__': main()
p02718
s505645065
Accepted
# -*- coding: utf-8 -*- from sys import stdin from operator import itemgetter import math # stdin = open("sample.txt") N,M = [int(x) for x in stdin.readline().rstrip().split()] hyo = list(map(int,[int(x) for x in stdin.readline().rstrip().split()])) sort_hyo = sorted(hyo, reverse=True) point = sum(hyo) target = math.ceil(point / (4*M)) for i in range(len(hyo)): if sort_hyo[i] >= target: sort_hyo[i] = "Yes" else: sort_hyo[i] = "No" print(sort_hyo[M-1])
p02681
s134485220
Accepted
s = input() t = input() if s == t[:-1]: print("Yes") else: print("No")
p03434
s746969288
Wrong Answer
n = int(input()) a = sorted(list(map(int,input().split())),reverse=True) A = sum(a[::2]) B = sum(a[::2]) print(A - B)
p02988
s322821796
Accepted
import itertools def triple(iterable): a, b, c = itertools.tee(iterable, 3) next(b, None), next(c, None), next(c, None) return zip(a, b, c) n = int(input()) P = list(map(int, input().split())) ans = 0 for x, y, z in triple(P): sorted_tuple = sorted([x, y, z]) if sorted_tuple[1] == y: ans += 1 print(ans)
p02627
s784047472
Accepted
A = input() if A.islower(): print('a') else: print('A')
p03329
s971424054
Accepted
N = int(input()) INF = 10 ** 6 dp = [INF] * (N + 1) MONEY = [] i = 1 while i <= N: MONEY.append(i) i *= 6 i = 1 while i <= N: MONEY.append(i) i *= 9 MONEY.sort() # print(MONEY) for init in MONEY: dp[init] = 1 for i in range(1, N + 1): for plus in MONEY: if i + plus <= N: dp[i + plus] = min(dp[i] + 1, dp[i + plus]) # print(dp) print(dp[N])
p03475
s799920919
Wrong Answer
import math n = int(input()) cL = [] sL = [] fL = [] for i in range(n - 1): c, s, f = map(int, input().split(" ")) cL.append(c) sL.append(s) fL.append(f) ans = 0 for i in range(n - 1): sm = 0 for j in range(i, n - 1): c = cL[j] s = sL[j] f = fL[j] if sm < s: sm = s sm += c + (f - ((sm - s) % f) % f) print(sm) print(0)
p02873
s357061796
Accepted
if __name__ == '__main__': s = list(input()) ans = [0] * (len(s) + 1) for i in range(len(s)): if s[i] == "<": ans[i + 1] += ans[i] + 1 for i in range(len(s) - 1, -1, -1): if s[i] == ">": ans[i] = max(ans[i], ans[i + 1] + 1) print(sum(ans))
p02811
s742057880
Accepted
K,X= map(int,input().split()) if 500 * K >= X: print("Yes") else: print("No")
p03289
s426916479
Accepted
import sys import re S = input() array_S = list(S) if not ( 4 <= len(S) <= 10 ): print('WA') sys.exit() if len(re.findall('[A-Z]',S)) != 2: print('WA') sys.exit() result = 0 if array_S[0] != 'A': result += 1 if array_S[2:-1].count('C') != 1: result += 1 array_S.pop(0) array_S.pop(array_S.index('C')) if not "".join(array_S).islower(): result += 1 print('WA') if result != 0 else print('AC')
p02861
s625009444
Accepted
from itertools import permutations import math n = int(input()) x,y = [],[] for _ in range(n): x_, y_ =map(int,input().split()) x.append(x_) y.append(y_) c = list(permutations([i for i in range(1,n+1)],n)) sum = 0 for ci in (c): tmp = 0 for i in range(len(ci)-1): tmp += math.sqrt((x[ci[i]-1]-x[ci[i+1]-1])**2 + (y[ci[i]-1]-y[ci[i+1]-1])**2) sum += tmp print(sum/len(c))
p02862
s057419907
Accepted
X, Y = map(int, input().split()) def comb(n, k, mod=10**9+7): ret = 1 for i in range(1, k + 1): ret = ret * (n - i + 1) % mod ret = ret * pow(i, mod - 2, mod) % mod return ret a = (2 * Y - X) / 3 b = (2 * X - Y) / 3 if a != int(a) or b != int(b) or a < 0 or b < 0: print(0) else: print(comb(int(a + b), int(a)))
p03037
s707953472
Accepted
n, m = map(int, input().split()) Authority = [list(map(int, input().split())) for _ in range(m)] cards = list(range(1, n + 2)) l_list = [] r_list = [] for i in range(m): l_list.append(Authority[i][0]) r_list.append(Authority[i][1]) print(len(cards[max(l_list):min(r_list) + 1]))
p03778
s839448934
Accepted
W,a,b=map(int,input().split()) Max=max(a,b) Min=min(a,b) ans=Max-(Min+W) if ans<0: ans=0 print(ans)
p04029
s953962060
Accepted
child=int(input()) ame=0 while child!=0: ame=ame+child child-=1 print(ame)
p02860
s220729755
Accepted
N = int(input()) S = input() if N%2 != 0: print("No") else: n = N//2 if S[:n]==S[n:]: print("Yes") else: print("No")
p02935
s718118089
Wrong Answer
n = int(input()) h = list(map(int,input().split(" "))) plsl = [] plsn = 0 for i in range(n-1): if h[i]>= h[i+1] and i == n-2: plsn += 1 # print(plsn) plsl.append(plsn) # print(plsl) elif h[i]>= h[i+1] and i < n-2: plsn += 1 # print(plsn) else: plsl.append(plsn) # print(plsl) plsn = 0 # print(plsn) plsl.sort(reverse = True) print(plsl[0])
p03282
s675978953
Accepted
if __name__ == '__main__': S=list(input()) K=int(input()) S=[int(s) for s in S] for i in range(K): if S[i]!=1: print(S[i]) break else: if i==K-1: print(1)
p02697
s531185677
Accepted
n,m=map(int,input().split()) if n%2==1: x="" for i in range(m): x+=f"{i+1} {n-i}\n" print(x) else: x="" for i in range(m): x+=(f"{i+1} {n-i}\n" if i<m/2 else f"{i+1} {n-i-1}\n") print(x)
p03681
s579451996
Accepted
N,M= map(int,input().split()) N,M = max(N,M),min(N,M) mod = 10**9+7 n = 100010 frac = [1]*(n+1) for i in range(n): frac[i+1] = (i+1)*frac[i]%mod if N==M+1: print(frac[N]*frac[M]%mod) elif N==M: print(frac[N]*frac[M]*2%mod) else: print(0)
p03038
s057937557
Wrong Answer
from collections import defaultdict N, M = map(int,input().split()) A = list(map(int,input().split())) T = [] for _ in range(M): a, b = map(int,input().split()) T+=[b]*a A.sort() T.sort(reverse = True)
p03105
s800398608
Accepted
a, b, c = map(int, input().split()) print(min(b//a, c))
p02951
s249214373
Accepted
A,B,C = map(int, input().split()) D = C-(A-B) if D < 0: print(0) else: print(D)
p03289
s060769758
Accepted
s = input() ans = 'WA' if s[0] == 'A': if s[2:-1].count('C') == 1: index = s[2:-1].find('C') + 2 if s[1:index].islower() and s[index + 1:].islower(): ans = 'AC' print(ans)
p03071
s652615028
Accepted
a, b = map(int,input().split()) if a > b: print(a*2 - 1) elif a == b: print(a + b) elif a < b: print(b*2 - 1)
p02571
s232053435
Accepted
S=input().strip() T=input().strip() ls = len(S) lt = len(T) x = lt for i in range(0,ls-lt+1): m = 0 for j in range(lt): if T[j] != S[i+j]: m += 1 x = min(x,m) print(x)
p02658
s250885865
Wrong Answer
n=int(input()) A=list(map(int,input().split())) a=0 ans=1 if 0 in A: ans=0 else: for a in range(n): ans*=A[a] a+=1 if ans<=10**18: continue else: break print(ans)
p02712
s708333701
Accepted
def main(): n = int(input()) ans = 0 for i in range(1,n+1): if i % 3 != 0 and i % 5 != 0: ans += i print(ans) if __name__=='__main__': main()
p03000
s580670115
Wrong Answer
def calcBoundCount(rangex, lstL): d = 0 for i in range(0, len(lstL)): d = d + lstL[i] if rangex < d: return i + 1 return len(lstL) N, X = map(int, input().split()) lstL = list(map(int, input().split())) count = calcBoundCount(X, lstL) print((count if count <= N+1 else N+1))
p02795
s623064872
Accepted
H=int(input()) W=int(input()) N=int(input()) T=max(H,W) if N%T==0: print(N//T) else: print(N//T+1)
p02627
s606559480
Accepted
print("A" if input().isupper() is True else "a")
p02696
s362576668
Wrong Answer
import math A,B,N= map(int,input().split()) x=[] AB=A/B if N<B: #x.append(math.floor(AB*N-1)-A*(N//B) print(math.floor(AB*N)) else: print(math.floor(AB*B-1)) #for i in range(1,N+1):
p02785
s433853542
Accepted
N, K = map(int, input().split()) Hs = map(int,input().split()) print(sum(sorted(Hs, reverse=True)[K::]))
p03698
s860280611
Accepted
S = input() if len(S) == len(set([s for s in S])): print('yes') else: print('no')
p03485
s509625509
Wrong Answer
import sys input = sys.stdin.readline a,b=map(int,input().split()) print(-((a+b)//2))
p03087
s093172458
Accepted
n,q=map(int, input().split()) s=input() cnt=[0]*(n-1) for i in range(n-1): if s[i:i+2]=='AC': cnt[i]=1 cnt2=[0]*(n) for i in range(1,n): cnt2[i]=cnt2[i-1]+cnt[i-1] for i in range(q): l,r=map(int, input().split()) print(cnt2[r-1]-cnt2[l-1])
p03485
s031058080
Accepted
a, b = map(int, input().split()) print(int((a+b)/2+0.5))
p03385
s335204710
Accepted
s = sorted(input()) print("Yes" if s==["a", "b", "c"] else "No")
p02957
s679934404
Accepted
import sys readline = sys.stdin.readline MOD = 10 ** 9 + 7 INF = float('INF') sys.setrecursionlimit(10 ** 5) def main(): A, B = map(int, readline().split()) A, B = min(A, B), max(A, B) if (B - A) % 2 == 1: print("IMPOSSIBLE") else: print((A + B) // 2) if __name__ == '__main__': main()
p03624
s876741185
Wrong Answer
s = input() alpha = 'abcdefghijklmnopqrstuvwxyz' for i in s: if i in alpha: alpha = alpha.strip(i) if alpha == '': print('None') else: print(alpha[0])
p03862
s244853477
Wrong Answer
N,X=map(int,input().split()) A=list(map(int,input().split())) if N==2: print(max(0,A[0]+A[1]-X)) exit() M=0 for i in range(N-1): M+=max(A[i]+A[i+1]-X,0) alpha=max(A[0]-X,0) beta=max(A[-1]-X,0) print((M+alpha+beta+1)//2)
p02729
s638391044
Accepted
from itertools import * def main(): N, M = list(map(int, input().split())) print(len(list(combinations(range(N), 2))) + len(list(combinations(range(M), 2)))) if __name__ == '__main__': main()
p03469
s810598395
Accepted
# A - Already 2018 s=list(input()) s[3]='8' print("".join(s))
p03785
s899358428
Accepted
def ii():return int(input()) def iim():return map(int,input().split()) def iil():return list(map(int,input().split())) n,c,k = iim() time = [] for _ in range(n): time.append(ii()) time.sort() bus = 0 fst = time[0] ans = 0 for item in time: if bus <= c-1 and item <= k+fst: bus += 1 elif bus > c-1: bus = 1 ans += 1 fst = item elif item-fst > k: bus = 1 ans += 1 fst = item print(ans if bus == 0 else ans+1)
p03107
s190318910
Wrong Answer
s = input() one = s.count("1") zero = s.count("0") print(min(zero,one))
p03013
s543859515
Accepted
n,m = map(int,input().split()) mod = 10**9+7 p = [0 for _ in range(n+1)] p_ok = [True for _ in range(n+1)] for i in range(m): p_ok[int(input())] = False p[0] = 1 for now in range(0,n): for next in range(now+1,min(n,now+2)+1): if p_ok[next]: p[next] += p[now] p[next] %= mod ans = p[n] print(ans%mod)
p02860
s783028050
Wrong Answer
n = int(input()) s = input() if n % 2 == 0: if s[0:int(n/2)] == s[int(n/2):]: print("Yes") else: print("No")
p03339
s255588019
Accepted
from collections import Counter N = int(input()) S = list(input()) c = Counter(S) left_facing_west = 0 right_facing_east = c['E'] ans = float('inf') for s in S: if s == 'W': ans = min(ans,left_facing_west+right_facing_east) left_facing_west += 1 else: right_facing_east -= 1 ans = min(ans,left_facing_west+right_facing_east) print(ans)