problem_id
stringclasses
428 values
submission_id
stringlengths
10
10
status
stringclasses
2 values
code
stringlengths
5
816
p03951
s514335242
Accepted
N = int(input()) s = input() t = input() for i in range(N): if s[i:] == t[:N-i]: break else: i += 1 print(N + i)
p03261
s113541435
Wrong Answer
N = int(input()) A = [input() for _ in range(N)] pre = A[0] for a in A[1:]: if A.count(pre) >= 2: print("No") exit() if pre[-1] == a[0]: pre = a print("Yes")
p03795
s825790724
Wrong Answer
n = int(input()) bonus = n % 15 bonus = (n - bonus) / 15 print((n * 800) - (bonus * 200))
p02719
s847818163
Wrong Answer
a,b= map(int, input().split()) min = 100000000000000000000 if a== 0: print(a) elif a <= b: while min > abs(a-b): min = abs(a-b) a =abs(a-b) elif a > b: a = a%b while min > abs(a-b): min = abs(a-b) a =abs(a-b) print(min)
p02720
s760926622
Accepted
from collections import deque k = int(input()) LL = [i for i in range(1, 10)] LL = deque(LL) for j in range(k): num = LL.popleft() amari = num % 10 kouho = [amari - 1, amari, amari + 1] for nn in kouho: if nn >= 0 and nn < 10: LL.append(10 * num + nn) print(num)
p03220
s228955712
Wrong Answer
N = input() T, A = map(int, input().split()) print(T) temperatures = list(map(int, input().split())) r = 50000000000000 results = '' list = [T - t * 0.006 for t in temperatures] for index, avg_temp in enumerate(list): ondo_sa = A - avg_temp if r > abs(ondo_sa): r = ondo_sa results = inde...
p04020
s287310196
Accepted
#! /usr/bin/env python3 import sys import numpy as np int1 = lambda x: int(x) - 1 read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines sys.setrecursionlimit(500000) N, *A = map(int, read().split()) cnt = 0 acc = 0 for a in A: if a != 0: acc += a els...
p03633
s282812573
Wrong Answer
def gcd(a, b): if(a == 0): return b return gcd(b % a, a) def lcm(a, b): return (a * b) / gcd(a, b) t = int(input()) ans = 1 while(t != 0): t -= 1 n = int(input()) if(ans < 1000000000000000000000): ans = lcm(ans, n) print(int(ans))
p02694
s539655559
Accepted
def N(): return int(input()) def L(): return list(map(int,input().split())) def NL(n): return [list(map(int,input().split())) for i in range(n)] mod = pow(10,9)+7 #import numpy y = 100 x = N() cnt = 0 while(1): cnt += 1 y = (y*101)//100 #print(y) if y >= x: print(cnt) break
p02784
s821740024
Accepted
h, n = map(int,input().split()) a = list(map(int,input().split())) sum_a = sum(a) if sum_a < h: print('No') else: print('Yes')
p03778
s233614328
Wrong Answer
w,a,b = map(int,input().split()) #print(w,a,b) if a+w == b: print(w) elif a+w < b: print(b-(a+w)) elif a+w > b: print(0) elif a == b: print(0)
p03478
s481232088
Accepted
N, A, B = map(int, input().split()) OutPut = 0 for i in range(1,N+1): moji = str(i) #文字列 leng = len(moji) #文字長 S = 0 for j in range(leng): S += int(moji[j]) if S >= A and S <= B: OutPut += i print(OutPut)
p02818
s005613397
Accepted
a, b, k = map(int, input().split()) a -= k if a < 0: if b + a > 0: print(0, b+a) else: print(0, 0) else: print(a, b)
p03639
s164899113
Wrong Answer
import numpy as np n = int(input()) a = np.array(list(map(int, input().split()))) a4 = len(a[a % 4 == 0]) a2n = len(a[a % 2 != 0]) a2 = len(a[a % 2 == 0]) print("Yes" if (a4 + 1 + a2 % 2) >= a2n+1 else "No")
p03456
s163280269
Accepted
a, b = input().split() n = int(a+b) if (n**0.5).is_integer(): print('Yes') else: print('No')
p03478
s065024840
Wrong Answer
N,a,b = map(int, input().split()) ans = 0 for i in range(1,N+1): m = int(i/1000) n = int((i%1000)/100) j = int((i%100)/10) k = i%10 sum = m + n + j + k if a <= sum <= b: ans = ans + i print(ans)
p02795
s273473041
Wrong Answer
h = int(input()) w = int(input()) n = int(input()) if h>w: nBig = h else: nBig = w ans = int(n/nBig)+1 print(ans)
p02959
s545942265
Accepted
n = int(input()) A = list(map(int, input().split())) B = list(map(int, input().split())) counter = 0 for i in range(n): d = min(A[i], B[i]) A[i] -= d B[i] -= d counter += d d = min(A[i+1], B[i]) A[i+1] -= d B[i] -= d counter += d print(counter)
p02957
s371845990
Accepted
# Problem A - Harmony # input A, B = map(int, input().split()) # initialization K = A + B # check if K%2==0: K = K // 2 print(K) else: print("IMPOSSIBLE")
p02971
s768846781
Accepted
import sys n = int(input()) ls = [int(input()) for _ in range(n)] mx = max(ls) c = ls.count(mx) new = ls[:] new.remove(mx) nx = max(new) if c > 1: for _ in range(n): print(mx) sys.exit() for i in ls: if i == mx: print(nx) else: print(mx)
p02838
s922047707
Accepted
import numpy as np mod = 10**9 + 7 N = int(input()) A = np.array(list(map(int, input().split()))) ans = 0 for n in range(len(bin(max(A)))): n_1 = np.count_nonzero((A >> n)&1) n_0 = N - n_1 ans += ((2 ** n)*n_1*n_0) % mod print(ans%mod)
p03951
s959994639
Accepted
import sys readline = sys.stdin.buffer.readline sys.setrecursionlimit(10 ** 8) INF = float('inf') MOD = 10 ** 9 + 7 def main(): N = int(input()) S = input() T = input() ans = N*2 for i in range(N): s = S[i:] t = T[:N-i] if s == t: ans -= N-i break ...
p03555
s609725718
Accepted
a=list(input()) b=list(input()) if a==b[::-1]: print("YES") else: print("NO")
p02838
s194908009
Accepted
import sys def solve(): readline = sys.stdin.buffer.readline mod = 10 ** 9 + 7 n = int(readline()) a = list(map(int, readline().split())) dp = [0] * 61 for i in range(60, -1, -1): for v in a: dp[i] += v >> i & 1 t = 0 for i in range(61): t += dp[i] * (n - dp...
p02859
s974291678
Wrong Answer
r = int(input()) circle1 = r*r circle2 = 1*1 a = circle1 / circle2 print(a)
p02947
s857258676
Accepted
N=int(input()) dic={} ans=0 for i in range(N): s=input() t=sorted(s) word="".join(t) if word in dic: dic[word]+=1 else: dic[word]=1 for i in dic: ans+=dic[i]*(dic[i]-1)//2 print(ans)
p03493
s018148753
Accepted
print(input().count("1"))
p02779
s078479151
Accepted
n = int(input()) a = list(map(int, input().split())) sa = set(a) if len(a) == len(sa): print("YES") else: print("NO")
p02753
s173782526
Accepted
def Main(S): return "Yes" if 'A' in S and 'B' in S else "No" def main(): S = str(input()) print(Main(S)) if __name__ == '__main__': main()
p03241
s477181843
Accepted
n, m = map(int, input().split()) factors = [1, m] sqrt = round(m ** 0.5 + 0.5) for i in range(2, sqrt + 1): if not m % i: factors.append(i) factors.append(m // i) factors = sorted(factors) def search(l): for i in l: if i >= n: return m // i print(search(factors))
p02640
s486827295
Wrong Answer
x, y = map(int, input().split()) n = (4*x - y)/2 m = (y - 2*x)/2 if n > 0 and m > 0: if n == int(n) and m == int(m): print("Yes") else: print("No") else: print("No")
p03035
s782736463
Accepted
numerosStr = input().split(" ") numero=[] for j in numerosStr: numero.append(int(j)) if numero[0] >= 13: print(numero[1]) elif numero[0] >= 6 and numero[0] <=12: print(int(numero[1]/2)) elif numero[0]<=5: print(0)
p03644
s945510081
Accepted
N,a=int(input()),1 while a*2<=N:a*=2 print(a)
p03086
s808471489
Wrong Answer
S = str(input()) sam = ['A','C','G','T'] count = 0 for i in range(len(S)): if i == 0 and S[i] in sam: count+=1 elif i > 0: if count == 0 and S[i] in sam: count+=1 elif S[i] in sam and S[i-1] in sam: count+=1 print(count)
p02677
s036632702
Accepted
#C import math a,b,h,m = map(int,input().split()) #時間t(hour) t = h + m/60 #a,bの角度 a_theta = t * 30 b_theta = (t * 360) % 360 theta = abs(a_theta - b_theta) c = math.sqrt(a**2 + b**2 - 2*a*b*math.cos(math.radians(theta))) print(c)
p03319
s579658335
Wrong Answer
N,K = map(int,input().split()) A = list(map(int,input().split())) one = A.index(1) i = one ans = None if one == 0 or one == N-1: ans = -(-(N-1) // (K-1)) else: left = -(-i // (K-1)) right = -(-(N - i - 1 - (i % (K-1)))//(K-1)) ans = left + right print(ans)
p03548
s018999645
Wrong Answer
x,y,z = map(int,input().split()) num = x//(y+z) mod = x%(y+z) if 0<=mod<=z:num-=1 print(num)
p02922
s716897215
Wrong Answer
a, b = map(int,input().split()) ans = 1 outlet = 4 while outlet < b: outlet += a - 1 ans += 1 print(ans)
p02622
s461304877
Wrong Answer
fv = [[0 for i in range(2)] for j in range (26)] for i in range (2): for c in input(): fv[ord(c)-ord('a')][i] += 1 ans = 0 for i in range(26): ans += fv[i][0]-fv[i][1] if fv[i][0] > fv[i][1] else 0 print(ans)
p03239
s504486997
Accepted
n, t = map(int, input().split()) # 経路の最小コスト a = 10**19 for _ in range(n): c, tt = map(int, input().split()) if t >= tt: a = min(c, a) # 対象経路がない if a == 10**19: print('TLE') else: print(a)
p02612
s441971111
Accepted
S = int(input()) pay = 1000 while S > pay: pay += 1000 else: print(pay - S)
p02777
s231057025
Wrong Answer
s,t=input().split() a,b=map(int,input().split()) u=input() if u=="red": print(a-1,b) else: print(a,b-1)
p02923
s299209501
Accepted
N = int(input()) H = list(map(int, input().split())) ans = 0 cnt = 0 for i in range(1, N): if H[i - 1] >= H[i]: cnt += 1 ans = max(ans, cnt) else: cnt = 0 print(ans)
p04045
s912877299
Wrong Answer
N, K = map(int, input().split()) D = input().split() n = 1 i = 0 while i < 1: Ans = str(N * n) n += 1 i = 1 for ans in Ans: if ans in D: i = 0 print(Ans)
p03637
s653431717
Wrong Answer
N = int(input()) A = list(map(int, input().split())) A = [a%4 for a in A] m = A.count(0) P = 3+2*(m-1) if m>0 else 0 n = A.count(2) Q = n-1 if n>0 else 0 print("Yes" if P+Q>=N else "No")
p02995
s794586675
Accepted
import fractions a, b, c, d = map(int, input().split()) a -= 1 lcm = c//fractions.gcd(c, d)*d cnt = b//c + b//d - b//lcm - (a//c + a//d - a//lcm) print(b-a-cnt)
p02598
s325554416
Accepted
import math n, k = map(int, input().split()) A = list(map(int, input().split())) max_len = max(A) def f(x): ans = 0 for a in A: cut_num = math.ceil(a / x) - 1 #print(a, cut_num, a / x) ans += cut_num if ans <= k: return True else: return False left = 0.001 right...
p03673
s763634689
Wrong Answer
n = int(input()) l = list(map(int,input().split())) a = [] if n % 2 == 0: a = l[::-2]+l[0::2] else: a = l[::-2]+l[1::2] print(a)
p03699
s298883364
Accepted
import numpy as np N = int(input()) ARR = [] for i in range(N): ARR.append(int(input())) def calculate(n,arr): arr = sorted(arr) arr = np.array(arr) total = np.sum(arr) indexes = np.where(arr % 10 != 0) if total % 10 != 0: print(total) return if indexes[0].__len__() ...
p02602
s756223047
Wrong Answer
n, k = map(int, input().split()) a = list(map(int, input().split())) hyoten = 1 mae = 1 for i in range(n-k+1): mae = hyoten hyoten = 1 for j in range(i, i+k): hyoten *= a[j] if mae == 1: continue else: if hyoten > mae: print("Yes") else: print...
p03386
s603344230
Accepted
def resolve(): a, b, k = map(int, input().split()) if a+k-1 >= b-k+1: for i in range(a, b+1): print(i) else: for i in range(a, a+k): print(i) for i in range(b-k+1, b+1): print(i) resolve()
p03012
s750186175
Accepted
n = int(input()) w = list(map(int, input().split())) sum_w = [] sum = 0 for i in range(n): sum += w[i] sum_w.append(sum) diff = sum for i in range(n): if diff < abs(sum - 2*sum_w[i]): break else: diff = abs(sum - 2*sum_w[i]) print(diff)
p03161
s517542954
Accepted
N, K = map(int, input().split()) h = list(map(int, input().split())) dp = [float("inf") for _ in range(N)] def cost(n, m): return abs(h[n] - h[m]) dp[0] = 0 for i in range(N): for j in range(1, K + 1): if (i + j) <= N -1: dp[i + j] = min(dp[i + j], dp[i] + cost(i, i + j)) print(dp[-1])
p02714
s139370659
Accepted
N = int(input()) S = list(input()) arr_R = [] arr_G = [] arr_B = [] for idx,s in enumerate(S): if s=="R": arr_R.append(idx+1) elif s=="G": arr_G.append(idx+1) else: arr_B.append(idx+1) ans = len(arr_R)*len(arr_G)*len(arr_B) omit = 0 for i in range(N): for j in range(i+1,N): k = 2*j-i if k...
p02933
s375241248
Accepted
a=int(input()) s=str(input()) if a>=3200: print(s) else: print('red')
p03067
s756439126
Wrong Answer
*s, t = map(int, input().split()) s.sort() for i in range(s[0],s[1]): if i == t: print("Yes") print("No")
p02982
s197509779
Accepted
import math n, d = map(int, input().split()) x = [] cnt = 0 for i in range(n): x.append(list(map(int, input().split()))) for i in range(n): for j in range(i+1, n): l = sum((x[i][k]-x[j][k])**2 for k in range(d)) if math.sqrt(l).is_integer(): cnt += 1 print(cnt)
p03323
s898208572
Wrong Answer
a,b = map(int,input().split()) if a > 9 or b > 9: print(':(') else: print('Yay!')
p03433
s403264445
Wrong Answer
n = int(input()) a = int(input()) while n > 500: n -= 500 if n <= a: print('Yes') else: print('No')
p02760
s299813744
Wrong Answer
a = [list(map(int, input().split())) for i in range(3)] n = int(input()) b = [int(input()) for i in range(n)] for i in range(3): for j in range(3): if a[i][j] in b: a[i][j] == 0 c = [[a[0][0], a[1][1], a[2][2]], [a[0][2], a[1][1], a[2][0]]] print("Yes" if any(i.count(0) == 3 for i in a) or any(i.count(0)...
p02866
s598703840
Wrong Answer
mod = 998244353 n = int(input()) d = list(map(int, input().split())) d.sort() if d[0] != 0: print(0) exit(0) max_d = max(d) cnt = [0] * (max_d + 1) for num in d: cnt[num] += 1 if cnt[0] > 1: print(0) exit(0) ans = 1 for i in range(1, len(cnt)): ans *= pow(cnt[i - 1], cnt[i], mod) print(an...
p03986
s689336767
Accepted
X = input() ans = len(X) sc = 0 for x in X: if x == "S": sc += 1 elif sc > 0: sc -= 1 ans -= 2 print(ans)
p02860
s416165186
Accepted
N = int(input()) S = input() if N % 2 == 1: print('No') else: if S[:N//2] == S[N//2:]: print('Yes') else: print('No')
p02912
s081144634
Accepted
N,M=map(int,input().split()) A=list(map(lambda x:int(x)*(-1),input().split())) from heapq import heappop,heappush,heapify heapify(A) for _ in range(M): a=heappop(A)*(-1) a//=2 heappush(A,a*(-1)) print(sum(A)*(-1))
p03494
s161583589
Accepted
input() A=list(map(int,input().split())) count=0 while all(a%2==0 for a in A): A=[a/2 for a in A] count+=1 print(count)
p02820
s745251020
Wrong Answer
n,k = map(int,input().split()) r,s,p = map(int,input().split()) t = [] for l in list(input()): if l=='r': t.append(p) if l=='s': t.append(r) if l=='p': t.append(s) for i in range(k,n): if t[i-k]==t[i]: t[i]=0 print(sum(t))
p02571
s935479470
Accepted
s=list(input()) t=list(input()) ans=[] for i in range(len(s)-len(t)+1): ct=0 for j in range(len(t)): if s[i+j]!=t[j]: ct+=1 ans.append(ct) print(min(ans))
p02792
s117064750
Accepted
ns = input() N=int(ns) C = [[ 0 for _ in range(10)] for _ in range(10)] for i in range(N+1): si = str(i) s = int(si[0]) e = int(si[-1]) C[s][e] += 1 ans = 0 for i in range(1,10): for j in range(1,10): # print(i,j,C[i][j]) ans += (C[i][j] * C[j][i]) print(ans)
p03219
s248992853
Accepted
a,b=map(int, input().split()) print(int(a+b/2))
p02584
s041274007
Accepted
x,k,d=map(int,input().split()) X=abs(x) print(X-k*d if X>k*d else abs(X%d-(k-X//d)%2*d))
p03705
s377351118
Accepted
import sys input = sys.stdin.readline N, A, B = map(int, input().split()) print(max(0, (N - 1) * B + A - ((N - 1) * A + B) + 1))
p02783
s462036594
Accepted
import math H,A=map(int, input().split()) print(math.ceil(H/A))
p02747
s675003854
Accepted
S = input() ANS = ['hi', 'hihi', 'hihihi', 'hihihihi', 'hihihihihi'] if S in ANS: print('Yes') else: print('No')
p03555
s020858154
Wrong Answer
#答えは合ってるがWAにならない C1 = input() C2 = input() C = list(C1) D = list(C2) D.reverse() if C == D: print("Yes") else: print("No")
p02608
s611709313
Wrong Answer
n = int(input()) for i in range(1, n + 1): cnt = 0 for x in range(1, 33): for y in range(1, 33): for z in range(1, 33): #if x ** 2 + y ** 2 + z ** 2 + x * y + y * z + z * x == i: if (x+y+z)**2 - (x*y + y*z + z*x) == i: cnt += 1 print(cn...
p03206
s561781288
Accepted
print("Christmas"+" Eve"*(25-int(input())))
p02972
s241551349
Wrong Answer
n = int(input()) a = list(map(int, input().split())) b=[0]*n for i in range(n-1,-1,-1): if not sum(b[i:n:i+1]) %2 and a[i]==1: b[i] = 1 print(sum(b)) print(" ".join([str(i) for i in b if i== 1]))
p02640
s170742699
Accepted
import bisect, collections, copy, heapq, itertools, math, numpy, string import sys from bisect import bisect_left, bisect_right, insort from collections import deque def S(): return sys.stdin.readline().rstrip() def I(): return int(sys.stdin.readline().rstrip()) def MI(): return map(int, sys.stdin.readline().rstrip().s...
p03493
s003988839
Wrong Answer
print(input().count('0'))
p03455
s473319299
Accepted
print("EOvdedn"[eval(input().replace(" ","*"))%2::2])
p02793
s691875059
Wrong Answer
def gcd(a, b): while b: a, b = b, a % b return a def main(): mod = 10**9 +7 n = int(input()) ls = list(map(int,input().split())) t = 1 for a in ls: t = gcd(t,a) ans = 0 for a in ls: ans = (ans + t//a) % mod print(ans) if __name__ == '__main__': main()
p02717
s821620104
Accepted
X, Y, Z = map(int, input().split()) print("{} {} {}".format(Z, X, Y))
p02707
s081283579
Accepted
import sys input = sys.stdin.readline sys.setrecursionlimit(10 ** 7) N = int(input()) A = [int(x) for x in input().split()] cnt = [0] * N for i in range(N-1): cnt[A[i]-1] += 1 for i in range(N): print(cnt[i])
p03836
s234758190
Accepted
a,b,c,d=map(int,input().split()) A="" for i in range(c-a): A=A+"R" for i in range(d-b): A=A+"U" for i in range(c-a): A=A+"L" for i in range(d-b+1): A=A+"D" for i in range(c-a+1): A=A+"R" for i in range(d-b+1): A=A+"U" A=A+"LU" for i in range(c-a+1): A=A+"L" for i in range(d-b+1): A=A+"D" A=A+"R" print(A...
p03705
s163527526
Accepted
import sys input = sys.stdin.readline def read(): N, A, B = map(int, input().strip().split()) return N, A, B def solve(N, A, B): low = (N-1) * A + B - 1 high = A + (N-1) * B return max(high - low, 0) if __name__ == '__main__': inputs = read() outputs = solve(*inputs) if outputs is ...
p02552
s748513312
Accepted
x=int(input()) if x ==0: print(1) if x ==1: print(0)
p02603
s797831878
Accepted
n = int(input()) a = list(map(int, input().split())) dp = [0]*n dp[0] = 1000 for i in range(1, n): dp[i] = dp[i-1] for j in range(i): s = dp[j] // a[j] m = dp[j] + (a[i] - a[j]) * s dp[i] = max(dp[i], m) print(dp[n-1])
p03137
s022078305
Wrong Answer
n,m = map(int,input().split()) x = [int(i) for i in input().split()] x.sort() memo = [] for i in range(m-1): memo.append(x[i+1]-x[i]) memo.sort() print(sum(memo[:m-n]))
p04044
s003786112
Accepted
n,l = map(int, input().split()) s = [input() for i in range(n)] s.sort() print("".join(s))
p02866
s026982368
Wrong Answer
import sys def input(): return sys.stdin.readline().rstrip() from collections import Counter def main(): n=int(input()) D=[int(_) for _ in input().split()] dc=Counter(D) dci=list(dc.items()) dci.sort() mod,ans=998244353,1 if D[0]!=0: print(0) sys.exit() for i,dcii in enu...
p02631
s751281659
Wrong Answer
N = int(input()) A = [int(i) for i in input().split()] B = [i for i in A] while len(set(B)) != 1: B = [B[i] ^ B[(i+1)%N] for i in range(N)] print(" ".join(map(str, [A[i]^B[i] for i in range(N)])))
p03478
s028257084
Wrong Answer
n,a,b=map(int,input().split()) count=0 for i in range(n+1): if a<=sum(map(int,str(i)))<=b: count+=1 print(count)
p02900
s602374143
Accepted
from collections import defaultdict def prime_factor(n): d = defaultdict(int) for i in range(2, n + 1): if i * i > n: break while n % i == 0: d[i] += 1 n //= i if n != 1: d[n] += 1 return d A, B = map(int, input().split()) prime_a = pri...
p02761
s831571064
Accepted
n, m = map(int, input().split()) lst = [list(map(int, input().split())) for _ in range(m)] for i in range(1000): i = str(i) if len(i) != n: continue for [x, y] in lst: if i[x-1] != str(y): break else: print(i) exit() print(-1)
p03495
s428100931
Wrong Answer
import collections N,K = map(int,input().split()) N_List = list(map(int,input().split())) Chou_List = collections.Counter(N_List) if len(Chou_List) <= K: print(0) else: Chou_List = list(Chou_List.values()) print(sum(Chou_List[K:]))
p02583
s869556861
Accepted
import itertools N = int(input()) L = list(map(int, input().split())) count =0 for v in itertools.combinations(L, 3): a=v[0] b=v[1] c=v[2] if a+b> c and b+c >a and c+a>b: if a!=b and b!=c and c!=a: count+=1 print(count)
p03633
s310358973
Accepted
import math def lcm(x,y): return (x*y)//math.gcd(x,y) n=int(input()) t=[int(input()) for i in range(n)] LCM=t[0] for i in range(1,n): LCM=lcm(LCM,t[i]) print(LCM)
p03625
s912547862
Accepted
import collections _, *a = map(int, open(0).read().split()) c=collections.Counter(a) tmp=[] for k,v in c.items(): if v>3: tmp.append(k) if v>1: tmp.append(k) tmp.sort() print(tmp[-1]*tmp[-2] if len(tmp) >1 else 0)
p02607
s579894162
Accepted
in_1 = input() in_2 = input() N = int(in_1) a = in_2.split() cnt = 0 for i, x in enumerate(a): if i % 2 == 0 and int(x) % 2 == 1: cnt += 1 print(cnt)
p02555
s751144761
Accepted
s=int(input()) dp=[0]*2005 dp[0]=1 dp[3]=1 dp[4]=1 dp[5]=1 mod=1e9+7 for i in range(6,2004): dp[i]=dp[i-1]+dp[i-3] dp[i]%=mod print(int(dp[s]))