Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
route = {i + 1 : {} for i in range(n)}
for i in range(n - 1):
    a, b, c = map(int, input().split())
    route[a][b] = c
    route[b][a] = c
q, k = map(int, input().split())
queue = [k]
length = [0] * (n + 1)
while queue:
    search = queue.pop(0)
    pairs = []
    for i, j in route[search].items():
        queue.append(i)
        length[i] = length[search] + j
        pairs.append([search, i])
    for i, j in pairs:
        del route[i][j]
        del route[j][i]
for i in range(q):
    x, y = map(int, input().split())
    print(length[x] + length[y])

Fixed submission:
import collections

n = int(input())
route = {i + 1 : {} for i in range(n)}
for i in range(n - 1):
    a, b, c = map(int, input().split())
    route[a][b] = c
    route[b][a] = c
q, k = map(int, input().split())
queue = collections.deque([k])
length = [0] * (n + 1)
while queue:
    search = queue.popleft()
    pairs = []
    for i, j in route[search].items():
        queue.append(i)
        length[i] = length[search] + j
        pairs.append([search, i])
    for i, j in pairs:
        del route[i][j]
        del route[j][i]
for i in range(q):
    x, y = map(int, input().split())
    print(length[x] + length[y])

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
route = {i + 1 : {} for i in range(n)}
for i in range(n - 1):
    a, b, c = map(int, input().split())
    route[a][b] = c
    route[b][a] = c
q, k = map(int, input().split())
queue = [k]
length = [0] * (n + 1)
while queue:
    search = queue.pop(0)
    pairs = []
    for i, j in route[search].items():
        queue.append(i)
        length[i] = length[search] + j
        pairs.append([search, i])
    for i, j in pairs:
        del route[i][j]
        del route[j][i]
for i in range(q):
    x, y = map(int, input().split())
    print(length[x] + length[y])

Fixed submission:
import collections

n = int(input())
route = {i + 1 : {} for i in range(n)}
for i in range(n - 1):
    a, b, c = map(int, input().split())
    route[a][b] = c
    route[b][a] = c
q, k = map(int, input().split())
queue = collections.deque([k])
length = [0] * (n + 1)
while queue:
    search = queue.popleft()
    pairs = []
    for i, j in route[search].items():
        queue.append(i)
        length[i] = length[search] + j
        pairs.append([search, i])
    for i, j in pairs:
        del route[i][j]
        del route[j][i]
for i in range(q):
    x, y = map(int, input().split())
    print(length[x] + length[y])
Buggy python submission (verdict: Runtime Error):
h, w = map(int, input().splilt())
print("#" * (w + 2))
for i in range(h):
  s = input()
  print("#" + s + "#")
print("#" * (w + 2))

Fixed submission:
h, w = map(int, input().split())
print("#" * (w + 2))
for i in range(h):
  s = input()
  print("#" + s + "#")
print("#" * (w + 2))
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))

count = 0
sum_a = a[0]
for i in range(n - 1):
    sum_a2 = sum_a + a[i + 1]
    if sum_a * sum_a2 >= 0:
        count += abs(sum_a2) + 1
        sum_a2 = - abs(sum_a) // sum_a
    sum_a = sum_a2
print(count)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
b = [a[0]]
for i in range(n - 1):
    b.append(b[-1] + a[i + 1])
f = [True, False]
ans = float("inf")
for i in f:
    flag = i
    count = 0
    num = 0
    for j in range(n):
        if flag == True:
            if b[j] + num <= 0:
                count += 1 - b[j] - num
                num += 1 - b[j] - num
            flag = False
        else:
            if b[j] + num >= 0:
                count += b[j] + num + 1
                num -= b[j] + num + 1
            flag = True
    ans = min(ans, count)
print(ans)
Buggy python submission (verdict: Runtime Error):
o = input()
e = input()
s = ""
for i in range(len(o)):
  s += o[i]
  s += e[i]
if len(o) > len(e):
  s += o[-1]
print(s)

Fixed submission:
o = input()
e = input()
s = ""
for i in range(len(e)):
  s += o[i]
  s += e[i]
if len(o) > len(e):
  s += o[-1]
print(s)
Buggy python submission (verdict: Runtime Error):
s = input().split()
print(" ",join(s))

Fixed submission:
s = input().split(",")
print(" ".join(s))
Buggy python submission (verdict: Runtime Error):
s = input()
flag = True
while s:
    if s[0:5] == "dream":
        s = s[5:]
        if s[0:2] == "er":
            if s[0:5] != "erase":
                s = s[2:]
    elif s[0:5] == "erase":
        s = s[5:]
        if s[0] == "r":
            if s[0:5] != "erase":
                s = s[1:]
    else:
        flag = False
        break
if flag == True:
    print("YES")
else:
    print("NO")

Fixed submission:
s = input()
flag = True
while s:
    if s[0:5] == "dream":
        s = s[5:]
        if s[0:2] == "er":
            if s[0:5] != "erase":
                s = s[2:]
    elif s[0:5] == "erase":
        s = s[5:]
        if s[0:1] == "r":
            if s[0:5] != "erase":
                s = s[1:]
    else:
        flag = False
        break
if flag == True:
    print("YES")
else:
    print("NO")
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
ans = 0
for i in range(a):
  if a[a[i] - 1] == i + 1:
    ans += 1
print(ans // 2)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
ans = 0
for i in range(n):
  if a[a[i] - 1] == i + 1:
    ans += 1
print(ans // 2)
Buggy python submission (verdict: Runtime Error):
import sympy
n = int(input())
cnt = 0
for i in range(1, n):
    cnt+=len(sympy.divisors(n-i))
print(cnt)


Fixed submission:
n=int(input())
cnt=0
for a in range(1,n):
    cnt+=(n-1)//a

print(cnt)
Buggy python submission (verdict: Runtime Error):
from decimal import Decimal
a,b=map(float, input().split())
print(int(Decimal(a)*Decimal(b)))

Fixed submission:
n=int(input())
l=list(map(int, input().split()))
m=1
for i in range(n):
    m*=l[i]
    if m>10**18:
        if 0 in l:
            print(0)
            exit()
        print(-1)
        exit()

print(m)

Buggy python submission (verdict: Runtime Error):
A,B=map(float, input().split())
A=int(A*100)
B=int(B*100)
print(int(A*B)/10000)

Fixed submission:
n=int(input())
l=list(map(int, input().split()))
m=1
for i in range(n):
    m*=l[i]
    if m>10**18:
        if 0 in l:
            print(0)
            exit()
        print(-1)
        exit()

print(m)
Buggy python submission (verdict: Runtime Error):
K=int(input())
S=str(input())
if len(S)<=K:
    print(S)
else:
    print(S[:K]+'...')

Fixed submission:
N=str(input())
M=int(N[len(N)-1])

h=[2,4,5,7,9]
p=[0,1,6,8]
if M in h:
    print('hon')
elif M in p:
    print('pon')
else:
    print('bon')
Buggy python submission (verdict: Runtime Error):
from math import inf
n, m, x = map(int, input().split())
ca = list()
for _ in range(n):
    ca.append(list(map(int, input().split())))

money = inf
tmp = 1
for i in range(n):
    tmp += 2**i
for i in range(tmp):
    B = str(format(i, str(n).zfill(n)+'b'))
    j = 0
    cnt = 0
    a = [0]*m
    for ch in B:
        if ch == '1':
            cnt += ca[j][0]
            for k in range(1, m+1):
                a[k-1] += ca[j][k]
        j += 1
    if a[0] >= x and a[1] >= x and a[2] >= x:
        money = min(cnt, money)

print(-1 if money == inf else money)


Fixed submission:
from math import inf
n, m, x = map(int, input().split())
ca = list()
for _ in range(n):
    ca.append(list(map(int, input().split())))

money = inf
tmp = 1
for i in range(n):
    tmp += 2**i
for i in range(tmp):
    B = str(format(i, str(n).zfill(n)+'b'))
    j = 0
    cnt = 0
    a = [0]*m
    for ch in B:
        if ch == '1':
            cnt += ca[j][0]
            for k in range(1, m+1):
                a[k-1] += ca[j][k]
        j += 1
    for ch in a:
        if ch < x:
            break
    else:
        money = min(cnt, money)
print(-1 if money == inf else money)
Buggy python submission (verdict: Runtime Error):
from collections import Counter
n, k = map(int, input().split())
A = list(map(int, input().split()))
C = Counter([])
X, Y = [], []
m = 0
for _ in range(n):
    a = A[m]-1
    C[m] += 1
    X.append(m)
    if C[a] != 0:
        Y = X[X.index(a):]
        X = X[:X.index(a)]
        break
    m = a
# print(X,Y)
x = len(X)
y = len(Y)
if k-1 <= x:
    print(X[k]+1)
else:
    k -= x
    print(Y[k-(k//y)*y]+1)


Fixed submission:
from collections import Counter
n, k = map(int, input().split())
A = list(map(int, input().split()))
C = Counter([])
X, Y = [], []
m = 0
for _ in range(n):
    a = A[m]-1
    C[m] += 1
    X.append(m)
    if C[a] != 0:
        Y = X[X.index(a):]
        X = X[:X.index(a)]
        break
    m = a
# print(X,Y)
x = len(X)
y = len(Y)
if k <= x-1:
    print(X[k]+1)
else:
    k -= x
    print(Y[k-(k//y)*y]+1)

Buggy python submission (verdict: Runtime Error):
from collections import Counter
n, k = map(int, input().split())
A = list(map(int, input().split()))
C = Counter([])
X, Y = [], []
m = 0
for _ in range(n):
    a = A[m]-1
    C[m] += 1
    X.append(m)
    if C[a] != 0:
        Y = X[X.index(a):]
        X = X[:X.index(a)]
        break
    m = a
# print(X,Y)
x=len(X)
y=len(Y)
if k <= x:
    print(X[k]+1)
else:
    k -= x
    print(Y[k-(k//y)*y]+1)


Fixed submission:
from collections import Counter
n, k = map(int, input().split())
A = list(map(int, input().split()))
C = Counter([])
X, Y = [], []
m = 0
for _ in range(n):
    a = A[m]-1
    C[m] += 1
    X.append(m)
    if C[a] != 0:
        Y = X[X.index(a):]
        X = X[:X.index(a)]
        break
    m = a
# print(X,Y)
x = len(X)
y = len(Y)
if k <= x-1:
    print(X[k]+1)
else:
    k -= x
    print(Y[k-(k//y)*y]+1)

Buggy python submission (verdict: Runtime Error):
N, K = map(int, input().split())
A = list(map(int, input().split()))
Kn = [0]*N
l = []
p = 0
i = 1
while True:
    Kn[p] = 1
    # print(p)
    if Kn[A[p]-1] == 1:
        break
    elif i == K:
        print(p+1)
    l.append(A[p])
    p = A[p]-1
    i += 1
if N % len(l) == 0:
    print(l[len(l)-1])
else:
    print(l[N % len(l)-1])


Fixed submission:
from collections import Counter
n, k = map(int, input().split())
A = list(map(int, input().split()))
C = Counter([])
X, Y = [], []
m = 0
for _ in range(n):
    a = A[m]-1
    C[m] += 1
    X.append(m)
    if C[a] != 0:
        Y = X[X.index(a):]
        X = X[:X.index(a)]
        break
    m = a
# print(X,Y)
x = len(X)
y = len(Y)
if k <= x-1:
    print(X[k]+1)
else:
    k -= x
    print(Y[k-(k//y)*y]+1)
Buggy python submission (verdict: Runtime Error):
import math
# i=int(input())
#n,m=map(int, input().split())
r = int(input())
print(r*2*math.pi)


Fixed submission:
n, m = map(int, input().split())
a = list(map(int, input().split()))
print(-1 if n-sum(a) < 0 else n-sum(a))
Buggy python submission (verdict: Time Limit Exceeded):
import math
from functools import reduce


def gcd(*numbers):
    return reduce(math.gcd, numbers)


k = int(input())
cnt = 0
for a in range(1, k+1):
    for b in range(1, k+1):
        for c in range(1, k+1):
            cnt += gcd(a, b, c)

print(cnt)


Fixed submission:
import collections
import math
# math.gcd(a,b)
k = int(input())
cnts = collections.defaultdict(int)
for i in range(1, k+1):
    for j in range(1, k+1):
        cnts[math.gcd(i,j)] += 1
ans = 0
for i in range(1, k+1):
    for key in cnts.keys():
        ans += math.gcd(i, key)*cnts[key]
print(ans)
Buggy python submission (verdict: Runtime Error):
K,N=map(int, input().split())
A=list(map(int, input().split()))
K=[]
for i in range(N):
  if i==N-1:
    K.append((K-A[i])+A[1])
  else:
    K.append(A[i+1]-A[i])

print(N-max(K))

Fixed submission:
K,N=map(int, input().split())
A=list(map(int, input().split()))
C=[]
for i in range(N):
  if i==N-1:
    C.append((K-A[i])+A[0])
  else:
    C.append(A[i+1]-A[i])

print(K-max(C))
Buggy python submission (verdict: Time Limit Exceeded):
from collections import Counter
from math import factorial


def combinations_count(n, r):
    if n < 2:
        return 0
    else:
        return factorial(n)//(factorial(n-r)*factorial(r))


n = int(input())
A = list(map(int, input().split()))
m = 0
c = Counter(A)
d = Counter([])
for k, v in c.items():
    co = combinations_count(v, 2)
    d[k] = co
    m += co
# print(c)
# print(d)
for a in A:
    print(m-d[a]+combinations_count(c[a]-1, 2))


Fixed submission:
from math import factorial
from collections import Counter


def combinations_count(n, r):
    if n >= r:
        return factorial(n) // (factorial(n - r) * factorial(r))
    else:
        return 0

c = Counter()
n = int(input())
A = list(map(int, input().split()))
for i in A:
    c[i] += 1
ans = 0
for k, v in c.items():
    ans += combinations_count(v, 2)

for i in A:
    print(ans-c[i]+1)

Buggy python submission (verdict: Time Limit Exceeded):
def fac(m):
  return(math.factorial(m)//(2*math.factorial((m-2))))
import collections
import math
N=int(input())
A=list(map(int, input().split()))
C=collections.Counter(A)
for k in range(N):
  C[A[k]]-=1
  L=list(C)
  cnt=0
  for s in L:
    if C[s]>1:
      cnt+=fac(C[s])
  C[A[k]]+=1
  print(cnt)

Fixed submission:
from math import factorial
from collections import Counter


def combinations_count(n, r):
    if n >= r:
        return factorial(n) // (factorial(n - r) * factorial(r))
    else:
        return 0

c = Counter()
n = int(input())
A = list(map(int, input().split()))
for i in A:
    c[i] += 1
ans = 0
for k, v in c.items():
    ans += combinations_count(v, 2)

for i in A:
    print(ans-c[i]+1)

Buggy python submission (verdict: Time Limit Exceeded):
def fac(m):
  return(math.factorial(m)//(2*math.factorial((m-2))))
import collections
import math
N=int(input())
A=list(map(int, input().split()))
C=collections.Counter(A)
for k in range(N):
  C[A[k]]-=1
  L=list(C)
  cnt=0
  for s in L:
    if C[s]>1:
      cnt+=fac(C[s])
  C[A[k]]+=1
  print(cnt)

Fixed submission:
from math import factorial
from collections import Counter


def combinations_count(n, r):
    if n >= r:
        return factorial(n) // (factorial(n - r) * factorial(r))
    else:
        return 0

c = Counter()
n = int(input())
A = list(map(int, input().split()))
for i in A:
    c[i] += 1
ans = 0
for k, v in c.items():
    ans += combinations_count(v, 2)

for i in A:
    print(ans-c[i]+1)

Buggy python submission (verdict: Time Limit Exceeded):
import copy
import math
N=int(input())
A=list(map(int, input().split()))
for k in range(N):
  cnt=0
  B=copy.copy(A)
  del B[k]
  C=[x for x in B if B.count(x) > 1]
  for s in set(C):
    m=C.count(s)
    cnt+=math.factorial(m)//(2*math.factorial((m-2)))
  print(cnt)

Fixed submission:
from math import factorial
from collections import Counter


def combinations_count(n, r):
    if n >= r:
        return factorial(n) // (factorial(n - r) * factorial(r))
    else:
        return 0

c = Counter()
n = int(input())
A = list(map(int, input().split()))
for i in A:
    c[i] += 1
ans = 0
for k, v in c.items():
    ans += combinations_count(v, 2)

for i in A:
    print(ans-c[i]+1)
Buggy python submission (verdict: Runtime Error):
S = str(input())
n = 0
m = 0
if S[n]!='h':
  while S[n]!='h':
    n+=1
    m+=1
while len(S) > n:
    if (n+m) % 2 == 1 and S[n] != 'i':
        print('No')
        exit()
    elif (n+m) % 2 == 0 and S[n] != 'h':
        print('No')
        exit()
    n += 1

print('Yes')

Fixed submission:
#N=int(input())
#N,M=map(int, input().split())
#L=list(map(int, input().split()))
S = str(input())
if len(S)%2==1:
  print('No')
  exit()
n = 0
while len(S) > n:
    if n % 2 == 1 and S[n] != 'i':
        print('No')
        exit()
    elif n % 2 == 0 and S[n] != 'h':
        print('No')
        exit()
    n += 1

print('Yes')

Buggy python submission (verdict: Runtime Error):
S = str(input())
n = 0
m = 0
if S[n]!='h':
  while S[n]!='h':
    n+=1
    m+=1
while len(S) > n:
    if n+m % 2 == 1 and S[n] != 'i':
        print('No')
        exit()
    elif n+m % 2 == 0 and S[n] != 'h':
        print('No')
        exit()
    n += 1

print('Yes')

Fixed submission:
#N=int(input())
#N,M=map(int, input().split())
#L=list(map(int, input().split()))
S = str(input())
if len(S)%2==1:
  print('No')
  exit()
n = 0
while len(S) > n:
    if n % 2 == 1 and S[n] != 'i':
        print('No')
        exit()
    elif n % 2 == 0 and S[n] != 'h':
        print('No')
        exit()
    n += 1

print('Yes')
Buggy python submission (verdict: Runtime Error):
S=str(input())
if S=='AAA' or S='BBB':
  print('No')
else:
  print('Yes')

Fixed submission:
S=str(input())
if S!='AAA' and S!='BBB':
  print('Yes')
else:
  print('No')

Buggy python submission (verdict: Runtime Error):
S=str(input())
if S='AAA' or S='BBB':
  print('No')
else:
  print('Yes')

Fixed submission:
S=str(input())
if S!='AAA' and S!='BBB':
  print('Yes')
else:
  print('No')

Buggy python submission (verdict: Runtime Error):
S=str(input())
if S='AAA' or S='BBB':
  print('No')
else:
  print('Yes')

Fixed submission:
S=str(input())
if S!='AAA' and S!='BBB':
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Time Limit Exceeded):
s = str(input())
q = int(input())
for i in range(q):
    tmp = tuple(map(str, input().split()))
    if len(tmp) == 3:  # pattern 2
        if int(tmp[1]) == 1:
            s = tmp[2]+s
        else:
            s += tmp[2]
    else:
        s = s[::-1]

print(s)


Fixed submission:
from collections import deque
s = str(input())
q = int(input())
stat = 0
l = []
a = deque()
b = deque()
for i in range(q):
    l = list(map(str, input().split()))
    t = int(l[0])
    if t == 1:
        stat += 1
    else:
        f = int(l[1])
        c = l[2]
        if stat % 2 == 0:
            if f == 1:
                a.appendleft(c)
            else:
                b.append(c)
        else:
            if f == 1:
                b.append(c)
            else:
                a.appendleft(c)

#print(a, b, stat % 2)
ans = ''.join(a)+s+''.join(b)
if stat % 2 == 1:
    ans = ans[::-1]
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
s = str(input())
q = int(input())
for i in range(q):
    tmp=tuple(map(str, input().split()))
    if len(tmp)==3: #pattern 2
        if int(tmp[1])==1:
            s=tmp[2]+s
        else:
            s+=tmp[2]
    else:
        s=s[::-1]

print(s)

Fixed submission:
from collections import deque
s = str(input())
q = int(input())
stat = 0
l = []
a = deque()
b = deque()
for i in range(q):
    l = list(map(str, input().split()))
    t = int(l[0])
    if t == 1:
        stat += 1
    else:
        f = int(l[1])
        c = l[2]
        if stat % 2 == 0:
            if f == 1:
                a.appendleft(c)
            else:
                b.append(c)
        else:
            if f == 1:
                b.append(c)
            else:
                a.appendleft(c)

#print(a, b, stat % 2)
ans = ''.join(a)+s+''.join(b)
if stat % 2 == 1:
    ans = ans[::-1]
print(ans)
Buggy python submission (verdict: Runtime Error):
N,R=map(int, input().split())
print(R if N>=10 R+100*(10-N))

Fixed submission:
N,R=map(int, input().split())
print(R if N>=10 else R+100*(10-N))
Buggy python submission (verdict: Runtime Error):
N,K=map(int, input().split())
i=0
while(K**i<N):
  i+=1

count=''
for j in range(i):
  M=N//(K**(i-j))
  count=str(M)+count
  N-=K**(i-j)*M
  
print(int(count))

Fixed submission:
N,K=map(int, input().split())
n=0
while K**(n+1)<=N:
  n+=1
  
print(n+1)
Buggy python submission (verdict: Runtime Error):
N=int(input())
A=map(int, input().split())
for i in range(N):
  if A[i]%2==0:
    if A[i]%3==0 or A[i]%5==0:
      print('APPROVED')
      exit()

print('DENIED')    

Fixed submission:
N=int(input())
A=list(map(int, input().split()))
for i in range(N):
  if A[i]%2==0:
    if A[i]%3!=0 and A[i]%5!=0:
      print('DENIED')
      exit()

print('APPROVED')
Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
KnL=[]
VnL=[]

for _ in range(N):
  inp=str(input())
  if not inp in KnL:
    KnL.append(inp)
    VnL.append([0,inp])
  VnL[KnL.index(inp)][0]+=1

VnL.sort()
VnL.reverse()

CL=[]
for i in range(len(VnL)):
  if VnL[0][0]>VnL[i][0]:
    break
  CL.append(VnL[i][1])

CL.sort()
for j in range(len(CL)):
  print(CL[j])

Fixed submission:
import collections
N=int(input())
L=[]
NL=[]
cL={}
for _ in range(N):
  L.append(str(input()))

cL=collections.Counter(L)
v,c=zip(*cL.most_common())

for i in range(len(v)):
           if c[0]==c[i]:
           	NL.append(v[i])
NL.sort()
for j in range(len(NL)):
           print(NL[j])
Buggy python submission (verdict: Time Limit Exceeded):
N,K=map(int, input().split())
L=list(map(int, input().split()))
sumL=[]

for j in range(N):
  L[j]=(1+L[j])*L[j]/2/L[j]
  
def sumlist(a):
  return sum(L[0:a])

for i in range(N-K+1):
  sumL.append(sumlist(i+K)-sumlist(i))
  
print(max(sumL))

Fixed submission:
n, k = map(int, input().split())
p = list(map(int, input().split()))
q = [0]
m = 0
for i in p:
    m += (1+i)/2
    q.append(m)
ans = 0
for i in range(k, n+1):
    ans = max(q[i]-q[i-k], ans)

#あまり深く事を考えずに
print(ans)
Buggy python submission (verdict: Runtime Error):
K,X=map(int, input().split())
print('Yes' if 500*K>=X else 'No')

Fixed submission:
K,X=map(int, input().split())
print('Yes' if 500*K>=X else 'No')

Buggy python submission (verdict: Runtime Error):
K,X=map(int, input().split())
print('Yes' if 500*K>=X else 'No')

Fixed submission:
K,X=map(int, input().split())
print('Yes' if 500*K>=X else 'No')
Buggy python submission (verdict: Time Limit Exceeded):
A,B,K=map(int, input().split())

for i in range(K):
  if A>0:
    A-=1
  elif B>0:
    B-=1

print(A,B)

Fixed submission:
A,B,K=map(int, input().split())
 
if K<=A:
  A-=K
elif K<=A+B:
  B-=K-A
  A=0
else:
  A=0
  B=0

print(A,B)
Buggy python submission (verdict: Runtime Error):
N=int(input())
S=str(input())

if S%2==1:
  print('No');exit()
  
print('Yes' if S[0:S//2-1]==S[S//2-1:N-1] else 'No')

Fixed submission:
N=int(input())
S=str(input())
 
if N%2==1:
  print('No');exit()
  
print('Yes' if S[0:N//2]==S[N//2:N] else 'No')
Buggy python submission (verdict: Runtime Error):
n=input()
if n==1:
  print(1)
elif n%2==0:
  print(0.5)
else:
  print((n//2+1)/n)

Fixed submission:
n=int(input())
if n==1:
  print(1)
elif n%2==0:
  print(0.5)
else:
  print((n//2+1)/n)
Buggy python submission (verdict: Runtime Error):
#N=input()
#N,M=map(int,input().split())
N=int(input())
A=list(map(int,input().split()))
B=list(map(int,input().split()))
C=list(map(int,input().split()))

total=sum(B)

for j in range(N):
  if j+1!=N:
    if A[j]+1==A[j+1]:
      total+=C[A[j-1]]
      
print(total)

Fixed submission:
#N=input()
#N,M=map(int,input().split())
N=int(input())
A=list(map(int,input().split()))
B=list(map(int,input().split()))
C=list(map(int,input().split()))

total=sum(B)

for j in range(N):
  if j+1!=N:
    if A[j]+1==A[j+1]:
      total+=C[A[j]-1]
      
print(total)
Buggy python submission (verdict: Runtime Error):
a,b=map(int, input().split())
s=[a+b, a-b, A*b]
print(max(s))

Fixed submission:
a,b=map(int, input().split())
s=[a+b, a-b, a*b]
print(max(s))