problem_id
stringclasses
428 values
submission_id
stringlengths
10
10
status
stringclasses
2 values
code
stringlengths
5
816
p03282
s819475547
Accepted
s = list(input()) k = int(input()) for i in range(len(s)): if s[i] != "1": break if k-1 < i: print("1") else: print(s[i])
p03435
s003592320
Accepted
m=lambda:map(int,input().split()) a,b,c=m();d,e,f=m();g,h,i=m() print(['No','Yes'][d-a==e-b==f-c and g-a==h-b==i-c])
p02612
s732091762
Wrong Answer
print(1000-(int(input())%1000))
p03067
s806752950
Accepted
a,b,c=list(map(int ,input().split())) ans_range=range(a,b) ans_range1=range(b,a) if(c in ans_range or c in ans_range1): print("Yes") else: print("No")
p03493
s752564223
Accepted
print(input().count('1'))
p03077
s536262633
Accepted
import math n = int(input()) tra = [int(input()) for i in range(5)] print(math.ceil(n/min(tra))+4)
p03699
s193060303
Wrong Answer
#!/usr/bin/env python3 n = int(input()) s = [int(input()) for _ in range(n)] s_5 = [s[i] for i in range(n) if s[i] % 10 == 5] # maxはsumから5の倍数ならそのまま、10の倍数ならminの5の倍数をひく sum_s = sum(s) s_5.sort() if sum_s % 10 == 5: print(sum_s) else: if len(s_5) == 0: print(0) else: print(sum_s - s_5[0])
p03943
s738839708
Wrong Answer
a = list(map(int,input().split())) hanbun = int(sum(a)/2) isOK = False for i in range(3): if hanbun==a[i]: isOK = True if isOK: print('Yes') else: print('No')
p03997
s547547200
Accepted
a = int(input()) b = int(input()) h = int(input()) print(int(h*(a+b)/2))
p03861
s929509805
Wrong Answer
a,b,x = map(int, input().split()) if a//x==a/x: A=a//x else: A=a//x+1 B=b//x print(0 if B-A==0 else B-A+1)
p02957
s314493290
Accepted
a, b = map(int, input().split()) x = a + b if x % 2 == 0: print(x // 2) else: print("IMPOSSIBLE")
p02796
s877236123
Accepted
import sys input = sys.stdin.readline N = int(input()) robots, count = [], 0 for x in range(N): X, L = map(int, input().split()) robots.append((X+L, X-L)) robots.sort() node = -10**12 for end, start in robots: if start >= node: node = end count += 1 print(count)
p03475
s053709400
Accepted
from math import ceil n = int(input()) cs = [] ss = [] fs = [] for _ in range(n-1): c, s, f = map(int, input().split()) cs.append(c) ss.append(s) fs.append(f) for i in range(n): t = 0 for j in range(i, n-1): if t < ss[j]: t = ss[j] t = ceil(t / fs[j]) * fs[j] t += cs[j] print(t)
p03163
s093988460
Wrong Answer
n,w=[int(i) for i in input().split()] wi=[] val=[] for i in range(n): k=[int(i) for i in input().split()] wi.append(k[0]) val.append(k[1]) dp=[[-1]*10**5]*105 def solve(pos,we): if we>w: return float("-inf") if pos>=n: return 0 if dp[pos][we]!=-1: return dp[pos][we] ans=max(solve(pos+1,we+wi[pos])+val[pos],solve(pos+1,we)) dp[pos][we]=ans return ans print(solve(0,0))
p02615
s257001461
Accepted
from heapq import * N,*A = map(int, open(0).read().split()) ai = [x * (-1) for x in A] heapify(ai) ans = heappop(ai) * (-1) searching = 1 for i in range(N-2): if i % 2 == 0: temp = heappop(ai) * (-1) ans += temp print(ans)
p02953
s129272755
Accepted
#!/usr/bin/env python3 def solve(a): for i in range(len(a)-1): if a[i+1] - a[i] <= -2: return "No" elif a[i+1] - a[i] == -1: a[i+1] += 1 return "Yes" def main(): N = int(input()) A = [0] + list(map(int,input().split())) print(solve(A)) if __name__ == '__main__': main()
p02859
s172976961
Accepted
r = int(input()) print(int(r**2))
p04033
s947563152
Wrong Answer
a, b = map(int, input().split()) if a>0: print('Positive') elif b<0: print('Negative') else: print('Zero')
p02989
s784745636
Wrong Answer
N = int(input()) d = [int(i) for i in input().split()] l = len(d) // 2 boundary = d[l - 1] next_d = boundary for i in d[l:]: if i > boundary: next_d = i break print(next_d - boundary)
p03077
s419244584
Wrong Answer
n = int(input()) a = [] ans = 1 for i in range(5): a.append(int(input())) for i in a: if n>i: if n%i == 0: ans += n//i else: ans += n//i+1 n = n%i else: ans += 1 print(ans)
p03210
s882288250
Wrong Answer
a = int(input()) if a == 3 | a == 5 | a == 7: print('YES') else: print('NO')
p03486
s349728789
Wrong Answer
s = sorted(input()) t = sorted(input()) flag1 = True flag2 = False if len(s) < len(t): for i in range(len(s)): if s[i] != t[i]: flag1 = False break else: flag1 = False for i in range(min(len(s), len(t))): if s[i] < t[i]: flag2 = True break if flag1 or flag2: print('Yes') else: print('No')
p03438
s045783391
Wrong Answer
n = int(input()) A = list(map(int,input().split())) B = list(map(int,input().split())) cnt = 0 for i in range(n): if A[i] > B[i]: cnt -= (A[i] - B[i]) else: cnt += (B[i] - A[i])//2 print('Yes' if cnt > 0 else 'No')
p02759
s387193913
Wrong Answer
N = int(input()) K = N % 2 S = (N + K) / 2 print(S)
p02647
s560895562
Accepted
import sys input = sys.stdin.readline from itertools import accumulate N,K=map(int,input().split()) A=list(map(int,input().split())) for tests in range(K): B=[0]*(N+1) for i in range(N): B[max(0,i-A[i])]+=1 B[min(N,i+A[i]+1)]-=1 A=list(accumulate(B)) flag=1 for i in range(N): if A[i]<N: flag=0 A[i]=min(A[i],N) if flag: break #print(A) print(*A[:N])
p02747
s219852391
Accepted
def solve(s): return "Yes" if "hi" * (len(s) // 2) == s else "No" assert solve("hihi") == "Yes" assert solve("hi") == "Yes" assert solve("ha") == "No" assert solve("hii") == "No" s = input() print(solve(s))
p02719
s070213473
Accepted
n,k = map(int,input().split()) if n % k > -(n % k - k): print(-(n % k - k)) else: print(n % k)
p03136
s692640750
Accepted
N = int(input()) L = list(map(int, input().split())) most = max(L) if 2*most < sum(L): print("Yes") else: print("No")
p02988
s310764380
Accepted
n = int(input()) p = list(map(int, input().split())) cnt = 0 for i in range(1, n-1): if(p[i-1] < p[i] and p[i] < p[i+1]): cnt += 1 elif(p[i-1] > p[i] and p[i] > p[i+1]): cnt += 1 print(cnt)
p02813
s663386081
Accepted
import itertools n = int(input()) p = tuple(map(int, input().split())) q = tuple(map(int, input().split())) li = list(itertools.permutations(range(1, n+1), n)) a = li.index(p) b = li.index(q) print(abs(a-b))
p03037
s670091486
Accepted
N, M = map(int, input().split()) left = 1 right = N for _ in range(M): L, R = map(int, input().split()) left = max(left, L) right = min(right, R) if left > right: print(0) else: print(right - left + 1)
p02787
s505608265
Wrong Answer
import numpy as np h, n = map(int, input().split()) ab = np.array([list(map(int, input().split()))]) a, b = ab[:, 0], ab[:, 1] dp = np.zeros(h+1, dtype=np.int) for i in range(1, h+1): dp[i] = np.min(dp[np.maximum(i-a, 0)] + b) print(dp[h])
p03681
s739674636
Wrong Answer
a,b = map(int,input().split()) div = int(10e9+7) if abs(a-b)>1: print(0) else: if a != b: x = 1 y = 1 for i in range(2,a+1): x *= i x %= div for i in range(2,b+1): y *= i y %= div print(x*y%div) else: print(a*b*2%div)
p03795
s197827344
Wrong Answer
e = int(input()) print(int(e/15)) print(e*800 - (int(e/15)*200))
p02571
s762869953
Accepted
S = input() T = input() ans = len(T) for S_start in range(len(S) - len(T) + 1): correct = 0 for i in range(len(T)): if T[i] != S[S_start + i]: correct += 1 ans = min(ans, correct) #print(ans) print(ans)
p03814
s790471216
Accepted
s = input() st = None en = None for i in range(len(s)): if st is None and s[i] == 'A': st = i if en is None and s[-i-1] == 'Z': en = -i - 1 print(len(s[st:en]) + 1)
p03745
s026223890
Accepted
def main(): n, *a = map(int, open(0).read().split()) c = 1 f = 0 d = [-1,1] for i, j in zip(a, a[1:]): if i == j: continue else: g = d[i < j] if f * g == -1: f = 0 c += 1 else: f = g print(c) if __name__ == '__main__': main()
p02951
s611049464
Accepted
A,B,C = (int(x) for x in input().split()) ans = B+C-A if ans>=0: print(ans) else: print(0)
p03239
s694632135
Accepted
N, T = list(map(int, input().split())) A = [list(map(int, input().split())) for _ in range(N)] ans, sav = 1001, 0 for i in A: if i[1] <= T: sav = i[0] if ans > sav: ans = sav if ans > 1000: ans = "TLE" print(ans)
p02645
s083108235
Accepted
s = input() print(s[0]+s[1]+s[2])
p03495
s605677240
Accepted
import sys from collections import Counter read = sys.stdin.read readline = sys.stdin.readline readlines = sys.stdin.readlines sys.setrecursionlimit(10 ** 9) INF = 1 << 60 MOD = 1000000007 def main(): N, K, *A = map(int, read().split()) counter = Counter(A) M = len(counter.keys()) value = sorted(counter.values()) ans = 0 for i in range(M - K): ans += value[i] print(ans) return if __name__ == '__main__': main()
p02771
s458086965
Accepted
A,B,C= map(int,input().split()) if A == B == C : print('No') elif A == B : print('Yes') elif B == C : print('Yes') elif A == C : print('Yes') else: print('No')
p02972
s397943086
Wrong Answer
n = int(input()) a = list(map(int, input().split())) ans = [0]*n for i in reversed(range(1,n)): if sum(ans[(i-i)::i])%2 != a[i]: ans[i] += 1 if sum(ans) != a[0]: ans[0] += 1 print(" ".join(map(str, ans)))
p02767
s428464328
Accepted
n = int(input()) x = list(map(int,input().split())) a = min(x) b = max(x) + 1 ans = 10 ** 8 for p in range(a,b): m = 0 for i in range(n): m += (x[i] - p) ** 2 ans = min(ans,m) print(ans)
p03711
s797597462
Accepted
x, y = map(int, input().split()) g1 = [1, 3, 5, 7, 8, 10, 12] g2 = [4, 6, 9, 11] g3 = [2] if x in g1 and y in g1: print("Yes") elif x in g2 and y in g2: print("Yes") elif x in g3 and y in g3: print("Yes") else: print("No")
p02595
s430615777
Accepted
from math import sqrt n, d = map(int, input().split()) cnt = 0 for i in range(n): x, y = map(int, input().split()) if sqrt(x ** 2 + y ** 2) <= d: cnt += 1 print(cnt)
p02714
s702225234
Accepted
n=int(input()) s=input() from collections import Counter ans = s.count("R") * s.count("G") * s.count("B") for step in range(1,n//2+2): for start in range(n): # print(start,step,start+2*step,n) if start+2*step>=n: # print("out!") break ans-=len(set((s[start], s[start+step],s[start+2*step])))==3 print(ans)
p03059
s104727678
Wrong Answer
A, B, T = map(int, input().split(' ')) print(B * T // A)
p03261
s230425834
Accepted
import sys readline = sys.stdin.readline def main(): n = int(readline()) w1 = readline().rstrip() l = w1[-1] words = set() words.add(w1) for _ in range(n-1): w = readline().rstrip() if w[0] == l and w not in words: l = w[-1] words.add(w) else: print('No') return print('Yes') if __name__ == '__main__': main()
p03095
s968390832
Accepted
from collections import Counter N = int(input()) S = list(input()) ans = 1 for v in Counter(S).values(): ans *= v+1 print((ans-1)%1000000007)
p03041
s354336588
Accepted
n, k = list(map(int, input().split())) s=input() before = s[0:k-1] low = s[k-1] low = low.lower() after = s[k:] print(before+low+after)
p02995
s666229635
Accepted
import math A, B, C, D = map(int, input().split()) # 対象となる数の個数 num = B - A + 1 # Cで割り切れる数の個数 C_div = B // C - (A - 1) // C # Dで割り切れる数の個数 D_div = B // D - (A - 1) // D # CでもDでも割り切れる数の個数 CandD = (C * D) // math.gcd(C, D) CandD_div = B // CandD - (A - 1) // CandD # CもしくはDで割り切れる数の個数 CorD_div = C_div + D_div - CandD_div res = num - CorD_div print(res)
p02714
s743623703
Accepted
n = int(input()) s = input() (r,g,b) = (0,0,0) for i in s: if i == "R": r += 1 elif i == "G": g += 1 else: b += 1 a = r*g*b t = 0 for i in range(n-2): for j in range(i+1,n-1): if 2*j-i <= n-1 and s[i]!=s[j] and s[j]!=s[2*j-i] and s[2*j-i]!=s[i]: t += 1 print (a-t)
p03076
s207263733
Wrong Answer
import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines sys.setrecursionlimit(10 ** 7) abcde = list(map(int, read().split())) check = sorted([abcde[0] % 10, abcde[1] % 10, abcde[2] % 10, abcde[3] % 10, abcde[4] % 10]) for i in range(5): if check[0] == 0: check.pop(0) else: break if not check: check = [0] ans = 0 for v in abcde: if v % 10 == check[0] or v % 10 == 0: ans += v else: ans += (v - v % 10) + 10 print(ans)
p02802
s629861926
Accepted
import numpy as np N,M=map(int,input().split()) wa=np.zeros(N+1) ac=np.zeros(N+1) for _ in range(M): p,S=input().split() if S=='AC' and ac[int(p)]==0: ac[int(p)]+=1 elif S=='AC' and ac[int(p)]>0: pass elif ac[int(p)]==0: wa[int(p)]+=1 print(int(sum(ac)), int(np.dot(ac>0,wa)))
p02958
s079277695
Wrong Answer
n = input() p = list(map(int,input().split())) ps = sorted(p) d_p = [] d_ps = [] for i,q in enumerate(p): if q != ps[i]: d_p.append(q) d_ps.append(ps[i]) if len(d_p) > 2: print('No') elif len(d_p) == 2: d_p.sort() if d_p == d_ps: print('Yes') else: print('No') else: print('Yes')
p02603
s234481040
Wrong Answer
n = int(input()) a = list(map(int, input().split())) b = sorted(a, reverse=True) money = 1000 kabu = 0 for i in range(n-1): if a[i] < a[i+1]: kabu += money // a[i] money -= a[i] * kabu elif a[i] > a[i+1]: money += a[i] * kabu kabu = 0 print(money + a[-1] * kabu)
p02708
s351546023
Accepted
N, K = map(int, input().split()) MOD = 10**9 + 7 def f(t): return (N-t+1)*t+1 ans = 0 for i in range(K, N+2): ans += f(i) ans %= MOD print(ans)
p03210
s556731706
Accepted
age = int(input()) if age == 3 or age == 5 or age == 7: print('YES') else: print('NO')
p03030
s841350516
Accepted
n = int(input()) r = [] for i in range(n): s, p = input().split() r.append((i + 1, s, int(p))) r.sort(key=lambda x: (x[1], -x[2])) for ri in r: print(ri[0])
p03345
s935344836
Accepted
# -*- coding: utf-8 -*- ''' A, B, C, K = map(int, input().split()) for i in range(K): a = A b = B c = C A = b + c B = a + c C = a + b ans = A - B if ans >= 10**8: ans = 'Unfair' elif ans >*10**8: ans = 'Unfair' print(ans) ''' A, B, C, K= map(int, input().split()) if K%2==1: ans = B - A else: ans = A - B if ans >= 10**18 or (-1)*ans >= 10**18: ans = 'Unfair' print(ans)
p03075
s966517520
Wrong Answer
a=int(input()) b=int(input()) c=int(input()) d=int(input()) e=int(input()) k=int(input()) if e-a<k: print("Yay!") else: print(":(")
p02888
s744960858
Wrong Answer
import bisect n=int(input()) l=sorted(list(map(int,input().split()))) cnt=0 for i in range(0,n-2): for j in range(i+1,n-1): p=bisect.bisect_right(l,l[i]+l[j]-1) print(cnt)
p02778
s059218550
Accepted
S = input() print('x'*len(S))
p02696
s109180580
Accepted
A,B,N = map(int,input().split()) if B<=N: print(int((A*(B-1))/B)-(A*int((B-1)/B))) else: print(int((A*N)/B)-(A*int(N/B)))
p02784
s406012009
Accepted
h,a = map(int,input().split()) li = list(map(int,input().split())) if sum(li)>=h: print("Yes") else: print("No")
p02712
s836434955
Wrong Answer
num = int(input()) result = 0 for fizzbuzz in range(num): if fizzbuzz % 3 == 0 and fizzbuzz % 5 == 0: continue elif fizzbuzz % 3 == 0: continue elif fizzbuzz % 5 == 0: continue result += fizzbuzz print(result)
p03799
s029323184
Wrong Answer
N, M = map(int, input().split()) while N * 2 <= M: M -= 2 N += 1 print(N - 1)
p03556
s178787935
Accepted
n=int(input()) ans=1 while (ans+1)**2<=n: ans+=1 print(ans**2)
p02783
s604674283
Accepted
from sys import stdin lines = stdin.readlines() H, A = map(int, lines[0].split()) cnt = 1 while cnt <= 10000: if cnt * A >= H: print(cnt) break cnt += 1
p03013
s639041159
Accepted
n, m = list(map(int, input().split())) a = [] for i in range(m): a.append(int(input())) mod = 1000000007 memo = [-1]*(n+1) memo[0] = 0 for k in range(m): memo[a[k]] = 0 for i in range(1, n+1): if memo[i] != -1: pass elif i <= 2: memo[i] = memo[i-1] + 1 else: memo[i] = memo[i-1] + memo[i-2] print(memo[-1]%mod)
p03380
s000100661
Accepted
n=int(input()) a=list(map(int, input().split())) a.sort(reverse=True) ideal = a[0]//2 dif_mn = 10**9 for i in range(1,n): tmp = a[0]-a[i] if a[i] > ideal else a[i] dif = ideal-tmp if dif < dif_mn: r = a[i] dif_mn = dif print(a[0], r)
p02939
s589143102
Accepted
s=input() c=0 s2="" s3="" for i in s: s3+=i if s2!=s3: c+=1 s2=s3 s3="" print(c)
p02793
s165865778
Accepted
import math import fractions def lcm(x, y): return (x * y) // fractions.gcd(x, y) N = int(input()) l = list(map(int, input().split())) MODp = 1000000007 K = 1 for i in range(N): K = lcm(K,l[i]) Ans = 0 for i in range(N): Ans += ((K // l[i])) Ans = Ans % MODp print(Ans)
p02584
s170048161
Wrong Answer
X, K, D = map(int, input().split()) if abs(X) < K * D: t1 = X % D t2 = D - t1 print(min(t1, t2)) else: t1 = abs(abs(X) - K * D) t2 = abs(abs(X) - (K - 1) * D) print(min(t1, t2))
p03075
s340796515
Accepted
L=[int(input()) for _ in range(6)];print(["Yay!",":("][L[4]-L[0]>L[5]])
p02576
s958164114
Wrong Answer
n,x,t=map(int,input().split()) print((int(n/x)+1)*t)
p03478
s188320072
Accepted
n,a,b = map(int, input().split()) res = 0 for i in range(1, n+1): tot = i%10 + i//10%10 + i//100%10 + i//1000%10 + i//10000 if tot >= a and tot <= b: res += i print(res)
p03469
s829277401
Wrong Answer
N = list(input()) N[0] = "2" N[1] = "0" N[2] = "1" N[3] = "8" print(N) date = ''.join(N) print(date)
p02647
s075686983
Accepted
import sys def input():return sys.stdin.readline()[:-1] def N(): return int(input()) def NM():return map(int,input().split()) def L():return list(NM()) def LN(n):return [N() for i in range(n)] def LL(n):return [L() for i in range(n)] n,k=NM() l=L() dp=[] from itertools import accumulate for _ in range(min(100,k)): tl,l=l,[0]*(n+1) for i,j in enumerate(tl): l[max(0,i-j)]+=1 l[min(n,i+j+1)]-=1 l=list(accumulate(l)) print(" ".join(map(str,l[:n])))
p02923
s540431028
Wrong Answer
N=int(input()) h=list(map(int, input().split())) cnt=0 ans=0 for i in range(N-1): if h[i]>=h[i+1]: cnt+=1 else: if cnt>=ans: ans=cnt cnt=0 print(cnt)
p02706
s995542685
Wrong Answer
N, M = map(int, input().split()) A = map(int, input().split()) if sum(A) > N: print(-1) else: print(N - sum(A))
p02711
s333822930
Accepted
num = input() if '7' in num: print("Yes") else: print("No")
p02939
s651752239
Accepted
def main(): word = list(input()) dp = [0] * len(word) dp[0] = 1 dp[1] = 1 if word[0] != word[1]: dp[1] = 2 for i in range(2, len(word)): if word[i] != word[i - 1]: dp[i] = dp[i - 1] + 1 else: dp[i] = dp[i - 3] + 2 print(dp[len(word) - 1]) if __name__ == '__main__': main()
p03779
s040671921
Wrong Answer
import math x=int(input()) a=10**5 b=0 while abs(a-b)>0.01: y=(a+b)/2 if (y**2+y)/2>x: a=y else: b=y print(math.ceil(b))
p02682
s574537094
Accepted
A,B,C,K=map(int,input().split()) tot=0 all=K if K-A>=0: tot+=A*1 all-=A if all-B>=0: tot+=B*0 all-=B if all-C>=0: tot+=-1*C else: tot+=-1*all else: tot+=0*all else: tot+=1*all print(tot)
p03644
s987123019
Accepted
n = int(input()) ans = 1 while ans*2<=n: ans *= 2 print(ans)
p02554
s261409493
Accepted
n = int(input()) print((10 ** n - 2 * 9 ** n + 8 ** n) % (10 ** 9 + 7))
p03860
s365000488
Accepted
A = list(input().split()) print(A[0][0]+A[1][0]+A[2][0])
p03211
s711702916
Accepted
small=list() S=list(input()) for i in range(len(S)-2): small.append(abs(int(S[i]+S[i+1]+S[i+2])-753)) print(min(small))
p02660
s790148466
Accepted
from bisect import bisect_right N = int(input()) Nroot = int(N**(1/2)) an = [i*(i+1)//2 for i in range(50)] ans = 0 for i in range(2, Nroot): count = 0 if N%i == 0: Ni = N//i count = 1 while Ni%i == 0: count += 1 Ni = Ni//i ans += bisect_right(an, count) -1 N = N//(i**count) if N>1: print(ans+1) else: print(ans)
p02732
s519188533
Accepted
from collections import Counter n = int(input()) a = [int(x) for x in input().split()] A = Counter(a) total = sum([A[i] * (A[i] - 1) //2 for i in A.keys()]) for i in range(n): tmp = a[i] print(total - A[tmp] +1)
p03062
s492233153
Accepted
N = int(input()) A = [int(x) for x in input().split()] minux_count = 0 minimum_abs = 10**9+1 if_zero_exists = False for a in A: if a < 0: minux_count += 1 if a == 0: if_zero_exists = True if abs(a) < minimum_abs: minimum_abs = abs(a) answer = 0 for a in A: answer += abs(a) if if_zero_exists or minux_count % 2 == 0: print(answer) else: print(answer - 2*minimum_abs)
p02832
s602519026
Accepted
n = int(input()) a = list(map(int, input().split())) cnt = 1 ans = 0 if 1 not in a: print(-1) exit() for num in a: if num == cnt: cnt+=1 else: ans+=1 print(ans)
p03017
s233888102
Accepted
N, A, B, C, D = map(int, input().split()) S = input() for i in range(A, max(C, D)): if S[i-1:i+1] == '##': print('No') exit(0) if C < D: print('Yes') exit(0) for i in range(B-1, D): if S[i-1:i+2] == '...': print('Yes') exit(0) print('No')
p02742
s374010016
Wrong Answer
H, W = map(int, input().split()) if H % 2 == 0: print(H * W // 2) elif W % 2 == 0: print(W * H // 2) else: print((H - 1) * W // 2 + W // 2 + 1)
p03612
s088821430
Wrong Answer
n = int(input()) p_li = list(map(int,input().split())) dum = 0 ans = 0 flag = 0 count = 0 for i in range(n): if i+1 == p_li[i]: ans += 1 if flag == 1: if dum == i-1: count += 1 flag = 0 else: flag = 1 dum = i #div,mod = divmod(dum,2) print(ans-count)
p02791
s514169505
Accepted
N = int(input()) P = list(map(int, input().split())) ret = 0 currmin = P[0] for i in range(N): if P[i] <= currmin: currmin = P[i] ret += 1 print(ret)
p02873
s760418827
Accepted
S = input() A = [0 for _ in range(len(S) + 1)] for idx in range(len(S)): if S[idx] == "<": A[idx + 1] = max(A[idx + 1], A[idx] + 1) for idx in reversed(range(len(S))): if S[idx] == ">": A[idx] = max(A[idx], A[idx + 1] + 1) print(sum(A))
p03986
s567719945
Wrong Answer
x = input() print(len(x) - min(x[:x.rfind("T")].count("S"), x[x.find("S"):].count("T")) * 2)