Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
data = []
for i in range(n):
    s = list(input())
    s.sort()
    data.append(s)
i=0
j=0
count=0
for i in range(n):
  for j in range(i+1,n):
    if data[i]==data[j]:
      count=count+1
print(count)

Fixed submission:
n = int(input())
data = []
for i in range(n):
    s = list(input())
    s.sort()
    data.append(s)
data.sort()
i=0
j=0
count=1
decount=0
for i in range(n-1):
  if data[i]==data[i+1]:
    count=count+1
  else:
    decount=decount+(count-1)*count/2
    count=1
decount=decount+(count-1)*count/2
print(int(decount))

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
data = []
for i in range(n):
    s = list(input())
    s.sort()
    data.append(s)
data.sort()
i=0
j=0
count=0
for i in range(n):
  for j in range(i+1,n):
    if data[i]==data[j]:
      count=count+1
print(count)

Fixed submission:
n = int(input())
data = []
for i in range(n):
    s = list(input())
    s.sort()
    data.append(s)
data.sort()
i=0
j=0
count=1
decount=0
for i in range(n-1):
  if data[i]==data[i+1]:
    count=count+1
  else:
    decount=decount+(count-1)*count/2
    count=1
decount=decount+(count-1)*count/2
print(int(decount))
Buggy python submission (verdict: Runtime Error):
s=list(map(int,input().split()))
a=s[0]-[1]
if a>s[2]:
  print(0)
else:
  print(s[2]-a)

Fixed submission:
s=list(map(int,input().split()))
s[0]=int(s[0])
s[1]=int(s[1])
s[2]=int(s[2])
a=0
if s[0]-s[1]>s[2]:
  print(0)
else:
  print(s[2]-s[0]+s[1])
Buggy python submission (verdict: Time Limit Exceeded):
S=input()
mod=10**9+7
dp=[[0]*13 for _ in range(len(S)+1)]
dp[0][0]=1
for i in range(len(S)):
  for j in range(13):
    if S[i]=='?':
      for k in range(10):
        a=(10*j+k)%13
        dp[i+1][a]=(dp[i][j]+dp[i+1][a])%mod
    else:
      b=int(S[i])
      a=(10*j+b)%13
      dp[i+1][a]=(dp[i+1][a]+dp[i][j])%mod
print(dp[len(S)][5])

Fixed submission:
S=input()
mod=10**9+7
dp=[0]*13
dp[0]=1
for i in range(len(S)):
  if S[i]=='?':
    dp=[sum(dp[4*(j-k)%13] for k in range(10))%mod for j in range(13)]
  else:
    a=int(S[i])
    dp=[dp[4*(j-a)%13]%mod for j in range(13)]
print(dp[5])
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = [int(input()) for _ in range(n)]
i=0
j=0
for i in range(n):
  b=-10000
  for j in range(n):
    if j==i:
      continue
    else:
      if b<=a[j]:
        b=a[j]
  print(b)

Fixed submission:
n = int(input())
a = [int(input()) for _ in range(n)]
list=[]
i=0
j=0
l=0
m=0
o=0
c=max(a)
for i in range(n):
  if c!=a[i]:
    continue
  else:
    list.append(i)
if len(list)>1:
  for l in range(n):
    print(c)
else:
  del a[list[0]]
  d=max(a)
  for o in range(n):
    if o==list[0]:
      print(d)
    else:
      print(c)
Buggy python submission (verdict: Time Limit Exceeded):
s=list(map(int,input().split()))
i=0
a=0
list=[]
for i in range(s[0],s[1]+1):
  if i%s[2]!=0 and i%s[3]!=0:
    a=a+1
print(a)

Fixed submission:
A,B,C,D=map(int,input().split())
a=B//C-(A-1)//C
b=B//D-(A-1)//D
def lcm(x,y):
    return x*y//gcd(x,y)

def gcd(x,y):
    if y==0:
        return x
    else:
        return gcd(y,x%y)

z=lcm(C,D)
c=B//z-(A-1)//z
print(B-A+1-a-b+c)
Buggy python submission (verdict: Runtime Error):
s=list(map(int,input().split()))
t=[int(input()) for i in range(s[1])]
list=[]
mod=1000000007
d=1
for k in range(s[0]+4):
  list.append(0)
def fib(x):
  list[0]=list[1]=0
  list[2]=list[3]=1
  for l in range(4,x+3):
    list[l]=list[l-1]+list[l-2]
fib(s[0])
for j in range(s[1]+1):
  if j==0:
    d*=list[t[j]+1]
    d=d%mod
    e=t[j]
  elif j==s[1]:
    d*=list[s[0]-t[j-1]+1]
    d=d%mod
  else:
    d*=list[t[j]-t[j-1]]
    d=d%mod
print(d)

Fixed submission:
N,M=map(int,input().split())
a=[int(input()) for _ in range(M)]
m=10**9+7
a.append(N+1)
def mul(a,b):
    c=[[0]*len(b[0])for i in range(len(a))]
    for i in range(len(a)):
        for k in range(len(b)):
            for j in range(len(b[0])):
                c[i][j]=(c[i][j]+a[i][k]*b[k][j])%m
    return c
def pow(a,n):
    b=[[0]*len(a) for i in range(len(a))]
    for i in range(len(a)):
        b[i][i]=1
    while 0<n:
        if n&1==1:
            b=mul(a,b)
        a=mul(a,a)
        n=n>>1
    return b                
if M==0:
  A=[[1,1],[1,0]]
  print(pow(A,N+1)[1][0])
elif M==1:
  A=[[1,1],[1,0]]
  print((pow(A,a[0])[1][0]*pow(A,N-a[0])[1][0])%m)
else:
  ans=1
  for i in range(M+1):
    A=[[1,1],[1,0]]
    if a[i]+1==a[i-1]:
      ans=0
      break
    if i==0:
      if a[i]!=1:
        ans=ans*pow(A,a[0])[1][0]
        ans=ans%m
    elif i==M:
      ans=ans*pow(A,a[i]-a[i-1]-1)[1][0]
      ans=ans%m
    else:
      ans=ans*pow(A,a[i]-a[i-1]-1)[1][0]
      ans=ans%m
  print(ans)

Buggy python submission (verdict: Runtime Error):
s=list(map(int,input().split()))
t=[int(input()) for i in range(s[1])]
list=[]
mod=1000000007
d=1
for k in range(1010):
  list.append(0)
def fib(x):
  list[0]=list[1]=0
  list[2]=list[3]=1
  for l in range(4,x+3):
    list[l]=list[l-1]+list[l-2]
fib(1000)
for j in range(s[1]+1):
  if j==0:
    d*=list[t[j]+1]
    d=d%mod
    e=t[j]
  elif j==s[1]:
    d*=list[s[0]-t[j-1]+1]
    d=d%mod
  else:
    d*=list[t[j]-t[j-1]]
    d=d%mod
print(d)

Fixed submission:
N,M=map(int,input().split())
a=[int(input()) for _ in range(M)]
m=10**9+7
a.append(N+1)
def mul(a,b):
    c=[[0]*len(b[0])for i in range(len(a))]
    for i in range(len(a)):
        for k in range(len(b)):
            for j in range(len(b[0])):
                c[i][j]=(c[i][j]+a[i][k]*b[k][j])%m
    return c
def pow(a,n):
    b=[[0]*len(a) for i in range(len(a))]
    for i in range(len(a)):
        b[i][i]=1
    while 0<n:
        if n&1==1:
            b=mul(a,b)
        a=mul(a,a)
        n=n>>1
    return b                
if M==0:
  A=[[1,1],[1,0]]
  print(pow(A,N+1)[1][0])
elif M==1:
  A=[[1,1],[1,0]]
  print((pow(A,a[0])[1][0]*pow(A,N-a[0])[1][0])%m)
else:
  ans=1
  for i in range(M+1):
    A=[[1,1],[1,0]]
    if a[i]+1==a[i-1]:
      ans=0
      break
    if i==0:
      if a[i]!=1:
        ans=ans*pow(A,a[0])[1][0]
        ans=ans%m
    elif i==M:
      ans=ans*pow(A,a[i]-a[i-1]-1)[1][0]
      ans=ans%m
    else:
      ans=ans*pow(A,a[i]-a[i-1]-1)[1][0]
      ans=ans%m
  print(ans)
Buggy python submission (verdict: Runtime Error):
s = list(map(int, input().split()))
if(0<=s[0]=<20 and 0<=s[1]=<20 and 0<=s[2]=<20)
	z=round((s[2]+0.5)/s[0])
	w=s[1]*z
	print(w)
    
else:
  print("error")

Fixed submission:
s=list(map(int,input().split()))
a=s[2]%s[0]
c=s[2]-a
d=c/s[0]
b=d*s[1]
print(int(b))

Buggy python submission (verdict: Runtime Error):
x=raw_input()
y=raw_input()
z=raw_input()
w=(int(z+0.5/x)*y)
print(w)

Fixed submission:
s=list(map(int,input().split()))
a=s[2]%s[0]
c=s[2]-a
d=c/s[0]
b=d*s[1]
print(int(b))
Buggy python submission (verdict: Runtime Error):

i = list(map(int, input().split()))
s = list(map(int, input().split()))
t = list(map(int, input().split()))
z=0
for q in range(0,i[0]):
	if(s[q]-t[0]>0):
      z+s[q]
    else:
      
print(z)

Fixed submission:
s=list(map(int,input().split()))
t=list(map(int,input().split()))
u=list(map(int,input().split()))
vw=[]
for i in range(s[0]):
  if t[i]-u[i]>0:
    vw.append(t[i]-u[i])
print(sum(vw))
Buggy python submission (verdict: Runtime Error):
t=list(map(int,input().split()))
s=list(map(int,input().split()))
def gcd(x,y):
  if y==0:
    return(x)
  else:
    return gcd(y,x%y)
  
a=gcd(s[0],s[1])
b=gcd(s[0],s[2])
c=gcd(s[1],s[2])
if a<b:
  if b<c:
    print(c)
  else:
    print(b)
else:
  if a<c:
    print(c)
  else:
    print(a)

Fixed submission:
def main():
    import sys
    from fractions import gcd
    input=sys.stdin.readline
    n=int(input())
    a=tuple(map(int,input().split()))
    ide_ele=0
    num=2**(n-1).bit_length()
    seg=[ide_ele]*2*num
    def init(init_val):
        for i in range(n):
            seg[i+num-1]=init_val[i]
        for i in range(num-2,-1,-1):
            seg[i]=gcd(seg[2*i+1],seg[2*i+2])
    
    def update(k,x):
        k+=num-1
        seg[k]=x
        while k:
            k=(k-1)//2
            seg[k]=gcd(seg[k*2+1],seg[k*2+2])
    
    def query(p,q):
        if q<=p:
            return ide_ele
        p+=num-1
        q+=num-2
        res=ide_ele
        while q-p>1:
            if p&1==0:
                res=gcd(res,seg[p])
            if q&1==1:
                res=gcd(res,seg[q])
                q-=1
            p=p//2
            q=(q-1)//2
        if p==q:
            res=gcd(res,seg[p])
        else:
            res=gcd(gcd(res,seg[p]),seg[q])       
        return res

    init(a)
    ans=-1
    for i in range(n):
        ans=max(ans,gcd(query(0,i),query(i+1,n)))
    print(ans)
main()
Buggy python submission (verdict: Runtime Error):
A, B, C = map(int, raw_input().split())
if A<B:
if B<C:
print("No")
else:
print("Yes")

else:
if A<C:
print("No")
else:
print("Yes")

Fixed submission:
a,b,c=map(int,input().split())
if a<=c<=b or b<=c<=a:
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Time Limit Exceeded):
t=list(map(int,input().split()))
s=input()
u=[list(map(int,input().split())) for _ in range(t[1])]
list=[0 for i in range(len(s))]
a=0
for i in range(len(s)-1):
  if s[i]=='A':
    list[i]+=1
  elif s[i]=='C':
    list[i]+=2
for i in range(t[1]):
  a=0
  for j in range(u[i][0]-1,u[i][1]-1):
    if list[j]==1:
      if list[j+1]==2:
        a+=1
  print(a)

Fixed submission:
N,Q=map(int,input().split())
S=input()
res=0
dp=[0]*N
a=0
for i in range(1,N):
  if S[i]=='C':
    if S[i-1]=='A':
      res+=1
  dp[i]=res
for _ in range(Q):
  l,r=map(int,input().split())
  if l==1:
    print(dp[r-1])
  else:
    print(dp[r-1]-dp[l-1])
Buggy python submission (verdict: Time Limit Exceeded):
A,B=map(int, input().split())
a=0
for i in range(A,B+1):
  a=a^i
print(a)

Fixed submission:
s,t=map(int, input().split())
def g(x):
  u=((x-1)//2)%2
  if x%2==0:
    return x^u
  return u
def f(x,y):
  return g(s-1)^g(t)
print(f(s,t))
Buggy python submission (verdict: Time Limit Exceeded):
def main():  
  N,M=map(int,input().split())
  A=list(map(int,input().split()))
  dp=[2,5,5,4,5,6,3,7,6]
  p=[]
  q=[]
  for i in range(M):
    p.append(dp[A[i]-1])
    q.append(str(A[i]))
  bp=['0']*(N+1)
  for i in range(N-1):
    for j in range(len(p)):
      if i+p[j]>N:
        continue
      if bp[i]=='0':
          if i!=0:
              continue
      bp[i+p[j]]=str(max(int(bp[i+p[j]]),int(q[j]+bp[i])))
  ans=bp[N]
  ans=ans.rstrip('0')
  print(ans)
if __name__=='__main__':
  main()

Fixed submission:
def main():  
  N,M=map(int,input().split())
  A=list(map(int,input().split()))
  dp=[2,5,5,4,5,6,3,7,6]
  p=[]
  q=[]
  for i in range(M):
    p.append(dp[A[i]-1])
    q.append(A[i])
  bp=[[0,0]for i in range(N+1)]
  for i in range(N-1):
    for j in range(len(p)):
      if i+p[j]>N:
        continue
      if bp[i][0]==0:
          if i!=0:
              continue
      bp[i+p[j]][0]=max(bp[i+p[j]][0],bp[i][0]+(10**bp[i][1])*q[j])
      bp[i+p[j]][1]=bp[i][1]+1
  print(bp[N][0])
if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
N,M=map(int,input().split())
A=list(map(int,input().split()))
dp=[2,5,5,4,5,6,3,7,6]
p=[]
for i in range(M):
  p.append([dp[A[i]-1],A[i]])
bp=[]
for i in range(N+1):
  bp.append('0')
for i in range(N-1):
  for j in range(len(p)):
    if i+p[j][0]>N:
      continue
    if bp[i]=='0':
        if i!=0:
            continue
    bp[i+p[j][0]]=str(max(int(bp[i+p[j][0]]),int(str(p[j][1])+bp[i])))
ans=bp[N]
ans=ans.rstrip('0')
print(ans)

Fixed submission:
def main():  
  N,M=map(int,input().split())
  A=list(map(int,input().split()))
  dp=[2,5,5,4,5,6,3,7,6]
  p=[]
  q=[]
  for i in range(M):
    p.append(dp[A[i]-1])
    q.append(A[i])
  bp=[[0,0]for i in range(N+1)]
  for i in range(N-1):
    for j in range(len(p)):
      if i+p[j]>N:
        continue
      if bp[i][0]==0:
          if i!=0:
              continue
      bp[i+p[j]][0]=max(bp[i+p[j]][0],bp[i][0]+(10**bp[i][1])*q[j])
      bp[i+p[j]][1]=bp[i][1]+1
  print(bp[N][0])
if __name__=='__main__':
  main()
Buggy python submission (verdict: Runtime Error):
N=int(input())
x=[list(map(int,input().split())) for _ in range(N)]
Cx=0
Cy=0
H=0
dp=[[0]*101 for i in range(101)]
ans=10**10
for i in range(N):
  for j in range(101):
    for k in range(101):
      count=abs(x[i][0]-j)+abs(x[i][1]-k)+x[i][2]
      if dp[j][k]!=i*count:
        dp[j][k]=0
      else:
        dp[j][k]+=count
      ans=min(ans,x[i][2])
p=10**19
a=0
b=0
for i in range(101):
  for j in range(101):
    if dp[i][j]%N==0 dp[i][j]!=0:
      if p!=min(p,dp[i][j]//N):
        a=i
        b=j
        p=min(p,dp[i][j]//N)
print(a,b,p)

Fixed submission:
N=int(input())
x=[list(map(int,input().split())) for _ in range(N)]
x.sort(key=lambda x:-x[2])
dp=[[0]*101 for i in range(101)]
bp=[[0]*101 for i in range(101)]
for j in range(101):
  for k in range(101):
    a,b,c=x[0]
    r=0
    asa=abs(a-j)+abs(b-k)+c
    for i in range(N):
      count=abs(x[i][0]-j)+abs(x[i][1]-k)
      if x[i][2]==max(asa-count,0):
        r+=1
    if r==N:
      print(j,k,asa)
      exit()
Buggy python submission (verdict: Time Limit Exceeded):
N,K=map(int,input().split())
ans=0
a=int(2*N/K)
for i in range(1,a+1):
  if i*K%2==1:
    continue
  for j in range(1,a+1):
    if j*K%2==1:
      continue
    for l in range(1,a+1):
      if l*K%2==1:
        continue
      if ((i+j)*K//2)%K==((l+j)*K//2)%K==((i+l)*K//2)%K==0:
        ans+=1
print(ans)

Fixed submission:
N,K=map(int,input().split())
ans=0
if K%2==1:
  print((N//K)**3)
else:
  ans=(N//K)**3
  k=K//2
  j=(N+k)//K
  print(j**3+ans)
Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
A=list(map(int,input().split()))
ans=N
for i in range(N-1):
  sum=A[i]
  xsum=A[i]
  for j in range(i+1,N):
    if sum+A[j]!=xsum^A[j]:
      break
    sum+=A[j]
    xsum=xsum^A[j]
    ans+=1
print(ans)

Fixed submission:
N=int(input())
A=list(map(int,input().split()))
xsum,sum=A[0],A[0]
ans,x,y=0,0,0
flag=True
while flag:
  if xsum==sum:
    ans+=(x-y+1)
    x+=1
    if x==N:
      break
    sum+=A[x]
    xsum^=A[x]
  else:
    sum-=A[y]
    xsum^=A[y]
    y+=1
print(ans)
Buggy python submission (verdict: Runtime Error):
s=input()
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(1,6):
    if i+j<=len(s)-1:
      p.add(s[i:j+i])
p=sorted(p)
print(p[K-1])

Fixed submission:
s=input()
s=s+'0'
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(1,6):
    if i+j<=len(s)-1:
      p.add(s[i:j+i])
p=sorted(p)
print(p[K-1])

Buggy python submission (verdict: Runtime Error):
s=input()
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(1,6):
    if i+j<=len(s):
      p.add(s[i:j+1])
p=sorted(p)
print(p[K-1])

Fixed submission:
s=input()
s=s+'0'
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(1,6):
    if i+j<=len(s)-1:
      p.add(s[i:j+i])
p=sorted(p)
print(p[K-1])

Buggy python submission (verdict: Time Limit Exceeded):
s=input()
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(i,len(s)):
    p.add(s[i:j+1])
p=sorted(p)
print(p[K-1])

Fixed submission:
s=input()
s=s+'0'
K=int(input())
p=set()
for i in range(len(s)):
  for j in range(1,6):
    if i+j<=len(s)-1:
      p.add(s[i:j+i])
p=sorted(p)
print(p[K-1])
Buggy python submission (verdict: Runtime Error):
A=list(map(int,input().split()))
K=int(input())
A.sort(reverse=True)
ans=sum(A)
for i in range(K):
  ans+=A[i]
print(ans)

Fixed submission:
A=list(map(int,input().split()))
K=int(input())
A.sort(reverse=True)
ans=sum(A)
for i in range(K):
  ans+=A[0]
  A[0]*=2
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
A,B,K=map(int,input().split())
for i in range(A,B+1):
  if i<A+K or B-K<i:
    print(i)

Fixed submission:
A,B,K=map(int,input().split())
for i in range(A,min(A+K,B+1)):
  print(i)
for j in range(max(A+K,B-K+1),B+1):
  print(j)
Buggy python submission (verdict: Runtime Error):
N=int(input())
flag='Yes'
p,q,r=0,0,0
for _ in range(N):
  t,x,y=map(int,input().split())
  a=x+y-p-q
  e=t-r
  if a<=e:
    if (e-a)%2!=0:
      flag='No'
      break
  else:
    flag='No'
    break
  p=x
  q=y
  r=t
print(flag)N=int(input())
flag='Yes'
p,q,r=0,0,0
for _ in range(N):
  t,x,y=map(int,input().split())
  a=x+y-p-q
  e=t-r
  if a<=e:
    if (e-a)%2!=0:
      flag='No'
      break
  else:
    flag='No'
    break
  p=x
  q=y
  r=t
print(flag)

Fixed submission:
N=int(input())
flag='Yes'
p,q,r=0,0,0
for _ in range(N):
  t,x,y=map(int,input().split())
  a=abs(x-p)+abs(y-q)
  e=t-r
  if a<=e:
    if (e-a)%2!=0:
      flag='No'
      break
  else:
    flag='No'
    break
  p,q,r=x,y,t
print(flag)
Buggy python submission (verdict: Runtime Error):
A,B=map(int,input().split())
S=input()
a='Yes'
for i in range(A+B+2):
  if i!=A:
    if S[i]!='-':
      a='No'
  else:
    if S[i]=='-':
      a='No'
print(a)

Fixed submission:
A,B=map(int,input().split())
S=input()
a='Yes'
for i in range(A+B+1):
  if i==A:
    if S[i]!='-':
      a='No'
  else:
    if S[i]=='-':
      a='No'
print(a)
Buggy python submission (verdict: Runtime Error):
X,Y=map(int,input().split())
if X<Y:
  print('<')
elif X>Y:
  print('>')
else:
  print('=')

Fixed submission:
X,Y=map(str,input().split())
if X<Y:
  print('<')
elif X>Y:
  print('>')
else:
  print('=')
Buggy python submission (verdict: Runtime Error):
N=int(input())
a=list(map(int,input().split()))
dp=[0]*(10**5+1)
for i in range(N):
  for j in range(3):
    dp[a[i]+j]+=1
print(max(dp))

Fixed submission:
N=int(input())
a=list(map(int,input().split()))
dp=[0]*(10**5+3)
for i in range(N):
  for j in range(3):
    dp[a[i]+j]+=1
print(max(dp))
Buggy python submission (verdict: Runtime Error):
x,a,b=map(int,input().split())
if abs(a-x)>abs(b-x):
  print(B)
else:
  print(A)

Fixed submission:
x,a,b=map(int,input().split())
if abs(a-x)>abs(b-x):
  print('B')
else:
  print('A')
Buggy python submission (verdict: Runtime Error):
N,K=map(int,input().split())
l=list(map(int,input().split()))
l.sort(reverse=True)
print(sum[:K])

Fixed submission:
N,K=map(int,input().split())
l=list(map(int,input().split()))
l.sort(reverse=True)
print(sum(l[:K]))
Buggy python submission (verdict: Runtime Error):
a=list(map(int,input().split()))
a.sort()
print(a[0]+[1])

Fixed submission:
a=list(map(int,input().split()))
a.sort()
print(a[0]+a[1])
Buggy python submission (verdict: Runtime Error):
A,B,C=map(int,input().split())
if A[-1]==B[0] and B[-1]==C[0]:
  print('YES')
else:
  print('NO')

Fixed submission:
A,B,C=map(str,input().split())
if A[-1]==B[0] and B[-1]==C[0]:
  print('YES')
else:
  print('NO')
Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
A=list(map(int,input().split()))
mod=10**9+7
A.sort()
ans=1
if N%2==1:
  i=1
  if A[0]!=0:
    print(0)
    exit()
  while i<N:
    if A[i]==A[i+1] and A[i]==(i//2+1)*2:
      i+=2
      ans*=2
      ans%=mod
    else:
      print(0)
      exit()
  print(ans)
else:
  i=0
  while i<N:
    if A[i]==A[i+1] and A[i]==(i//2)*2+1:
      i+=2
      ans*=2
      ans%=mod
    else:
      print(0)
  print(ans)

Fixed submission:
def main():
  N=int(input())
  A=list(map(int,input().split()))
  mod=10**9+7
  ans=1
  A.sort()
  if N%2==0:
    for i in range(0,N,2):
      if A[i]!=A[i+1] or A[i]!=i+1:
        print(0)
        exit()
      ans=ans*2%mod
    print(ans)
  else:
    if A[0]!=0:
      print(0)
      exit()
    ans=1
    for i in range(1,N,2):
      if A[i]!=A[i+1] or A[i]!=i+1:
        print(0)
        exit()
      ans=ans*2%mod
    print(ans)
if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
N=int(input())
A=list(map(int,input().split()))
mod=10**9+7
A.sort()
ans=1
if N%2==1:
  i=1
  if A[0]!=0:
    print(0)
    exit()
  while i<N:
    if A[i]==A[i+1] and A[i]==(i//2+1)*2:
      i+=2
    else:
      print(0)
      exit()
  for i in range(N//2):
    ans*=2
    ans%=mod
  print(ans)
else:
  i=0
  while i<N:
    if A[i]==A[i+1] and A[i]==(i//2)*2+1:
      i+=2
    else:
      print(0)
  for i in range(N//2):
    ans*=2
    ans%=mod
  print(ans)

Fixed submission:
def main():
  N=int(input())
  A=list(map(int,input().split()))
  mod=10**9+7
  ans=1
  A.sort()
  if N%2==0:
    for i in range(0,N,2):
      if A[i]!=A[i+1] or A[i]!=i+1:
        print(0)
        exit()
      ans=ans*2%mod
    print(ans)
  else:
    if A[0]!=0:
      print(0)
      exit()
    ans=1
    for i in range(1,N,2):
      if A[i]!=A[i+1] or A[i]!=i+1:
        print(0)
        exit()
      ans=ans*2%mod
    print(ans)
if __name__=='__main__':
  main()
Buggy python submission (verdict: Runtime Error):
a,b,c=map(int,input().split())
print(a[0]+b[0]+c[0])

Fixed submission:
a,b,c=map(str,input().split())
print(a[0]+b[0]+c[0])
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = [int(i) for i in input().split()]
s = sum(a)
ans = 0 
for i in range(n-1):
	s-=a[i]
	ans+=s*a[i]
print(ans%(10**9+7))

Fixed submission:
D,T,S = map(int,input().split())
if D/S<=T:
	print("Yes")
else:
	print("No")
Buggy python submission (verdict: Runtime Error):
class UnionFind:
    def __init__(self, n):
        self.parent = [i for i in range(n)]
        self.num = [1 for i in range(n)]

    def root(self, x):
        if self.parent[x] == x:
            return x
        else:
            self.parent[x] = self.root(self.parent[x])
            return self.parent[x]

    def unite(self, x, y):
        x = self.root(x)
        y = self.root(y)
        if x != y:
            self.parent[x] = y
            self.num[y] += self.num[x]

    def same(self, x, y):
        return self.root(x) == self.root(y)

    def count(self, x):
        return self.num[self.root(x)]

N, M = map(int, input().split())
un = UnionFind(N)
for i in range(M):
    a, b = map(int, input().split())
    a, b = a-1, b-1
    un.unite(a, b)
ans = 0
for i in range(N):
    ans = max(ans, un.count(i))
print(ans)


Fixed submission:
import sys
input = sys.stdin.readline
sys.setrecursionlimit(10**7)

class UnionFind:
    def __init__(self, n):
        self.parent = [i for i in range(n)]
        self.num = [1 for i in range(n)]

    def root(self, x):
        if self.parent[x] == x:
            return x
        else:
            self.parent[x] = self.root(self.parent[x])
            return self.parent[x]

    def unite(self, x, y):
        x = self.root(x)
        y = self.root(y)
        if x != y:
            self.parent[x] = y
            self.num[y] += self.num[x]

    def same(self, x, y):
        return self.root(x) == self.root(y)

    def count(self, x):
        return self.num[self.root(x)]

N, M = map(int, input().split())
un = UnionFind(N)
for i in range(M):
    a, b = map(int, input().split())
    a, b = a-1, b-1
    un.unite(a, b)
ans = 0
for i in range(N):
    ans = max(ans, un.count(i))
print(ans)