qyliang/CodeNanoFix huggingface dataset:
Buggy code:
h1, m1, h2, m2, k = map(int, input().split())

h = h2 - h1
m = m2 - m1

if m < 0:
  h = h - 1
  m = 60 - m
  
total = h + m

print(total - k)

Fixed code:
h1, m1, h2, m2, k = map(int, input().split())

h = (h2 - h1)*60
m = m2 - m1

if m < 0:
  h = h - 60
  m = 60 + m

total = h + m

print(total-k)
Buggy code:
h,m,h2,m2,k=map(int,input().split())
a=h*60+m
b=h2*60+m2
if a>b:
    b+=60*24
#print(b)

print(((b-a)-k)

Fixed code:
h,m,h2,m2,k=map(int,input().split())
a=h*60+m
b=h2*60+m2
if a>b:
    b+=60*24
#print(b)

print(((b-a)-k))
Buggy code:
h1, m1, h2, m2, k = map(int, input().split())

f = h1 * 60 + m1
t = h2 * 60 + m2

print(time)
if time < 0:
  print(0)
else:
  print(time)



Fixed code:
h1, m1, h2, m2, k = map(int, input().split())

f = h1 * 60 + m1
t = h2 * 60 + m2

time = t - f - k
if time < 0:
  print(0)
else:
  print(time)
Buggy code:
h1,m1,h2,m2,k=map(int,input().split())
h_d=h2-h
m_d=m2-m1
if m_d<0:
    h_d-=1
    m_d=60+m2-m1
   
sum=60*h_d+m_d
sum-=k

if sum<0:
    print(0)
else:
    print(sum)

Fixed code:
h1,m1,h2,m2,k=map(int,input().split())
h_d=h2-h1
m_d=m2-m1
if m_d<0:
    h_d-=1
    m_d=60+m2-m1
    
sum=60*h_d+m_d
sum-=k
 
if sum<0:
    print(0)
else:
    print(sum)
Buggy code:
H1,M1,H2,H2,K = map(int,input().split())
print((H2-H1)*60+(M2-M1)-K)

Fixed code:
H1, M1, H2, M2, K = map(int, input().split())
time = (H2*60+M2) - (H1*60+M1)
ans = time - K
print(ans)
Buggy code:
h1, m1, h2, m2, k = list(map(int, input().split()))

wake = (h2 * 60 + m2) - (h1 * 60 + m1)

if ((wake - k) >= k):
    ans = wake
else:
    ans = 0

print(ans)


Fixed code:
h1, m1, h2, m2, k = list(map(int, input().split()))

wake = (h2 * 60 + m2) - (h1 * 60 + m1)

if (wake > k):
    ans = wake - k
else:
    ans = 0

print(ans)
Buggy code:
import sys
a = []
for l in sys.stdin:
    a.append(int(l))
h1, m1, h2, m2, k  = a[0].split()
H1, M1, H2, M2, K = int(h1), int(m1), int(h2), int(m2), int(k)
time = 60 * H2 + M2 - (60*H1 + M1) - K
print(time)

Fixed code:
import sys
a = []
for l in sys.stdin:
    a.append(l)
h1, m1, h2, m2, k  = a[0].split()
H1, M1, H2, M2, K = int(h1), int(m1), int(h2), int(m2), int(k)
time = 60 * H2 + M2 - (60*H1 + M1) - K
print(time)
Buggy code:
# import numpy as np
import sys, math, heapq
from itertools import permutations, combinations
from collections import defaultdict, Counter, deque
from math import factorial, gcd
from bisect import bisect_left, bisect_right

sys.setrecursionlimit(10 ** 7)
MOD = 10 ** 9 + 7
input = lambda: sys.stdin.readline()[:-1]
pl = lambda x: print(*x, sep="\n")

N = int(input())
A = list(map(int, input().split()))

rcA = [0] * (N)
rcA[-1] = A[-1]
for i in range(1, N):
    rcA[-i - 1] = rcA[-i] + A[-i - 1]
# print(rcA)

cnt = 1
node = 1
for a, rca in zip(A, rcA):
    min_node = node - a
    max_node = 2 * (node - a)
    if rca < min_node:
        print(-1)
        exit()
    node = min(max_node, rca)
    cnt += node
print(cnt)

Fixed code:
# import numpy as np
import sys, math, heapq
from itertools import permutations, combinations
from collections import defaultdict, Counter, deque
from math import factorial, gcd
from bisect import bisect_left, bisect_right

sys.setrecursionlimit(10 ** 7)
MOD = 10 ** 9 + 7
input = lambda: sys.stdin.readline()[:-1]
pl = lambda x: print(*x, sep="\n")

N = int(input())
A = list(map(int, input().split()))

if N == 0:
    if A[0] == 1:
        print(1)
        exit()
    else:
        print(-1)
        exit()
if N != 0 and A[0] > 0:
    print(-1)
    exit()

rcA = [0] * (N)
rcA[-1] = A[-1]
for i in range(1, N):
    rcA[-i - 1] = rcA[-i] + A[-i - 1]
# print(rcA)

cnt = 1
node = 1
for a, rca in zip(A, rcA):
    min_node = node - a
    max_node = 2 * (node - a)
    if rca < min_node or min_node < 0:
        print(-1)
        exit()
    node = min(max_node, rca)
    # print(node)
    cnt += node
if node != A[-1]:
    print(-1)
    exit()
print(cnt)
Buggy code:


def read_int():
    return int(input().strip())


def read_ints():
    return list(map(int, input().strip().split(' ')))


def solve():
    N = read_int();
    A = read_ints();
    B = [0]*(N+1)
    B[N] = A[N]
    for i in range(N-1, -1, -1):
        B[i] = B[i+1]+A[i]
    nodes, answer = 1, 0
    for i in range(N+1):
        if nodes < A[i]:
            print(-1)
            return
        answer += nodes
        nodes -= A[i]
        if i<N:
            nodes = min(2*nodes, B[i+1])
    return answer


if __name__ == '__main__':
    print(solve())


Fixed code:


def read_int():
    return int(input().strip())


def read_ints():
    return list(map(int, input().strip().split(' ')))


def solve():
    N = read_int();
    A = read_ints();
    B = [0]*(N+1)
    B[N] = A[N]
    for i in range(N-1, -1, -1):
        B[i] = B[i+1]+A[i]
    nodes, answer = 1, 0
    for i in range(N+1):
        if nodes < A[i]:
            return -1
        answer += nodes
        nodes -= A[i]
        if i<N:
            nodes = min(2*nodes, B[i+1])
    return answer


if __name__ == '__main__':
    print(solve())
Buggy code:
n = int(input())
a = list(map(int, input().split()))
if a[0] >= 1 or n == 0:
    print(1 if a[0] == 1 and n == 0 else -1)
    exit()
b = [0] * (n + 1)
for i in range(1, n + 1):
    b[i] = a[i] + b[i - 1]
v = 1
ans = 1
for i in range(n):
    if v < 2 * a[i + 1]:
        print(-1)
        exit()
    v = min(b[n] - b[i], 2 * (v - a[i]))
    if v <= 0:
        print(-1)
        exit()
    ans += v
print(ans)

Fixed code:
n = int(input())
a = list(map(int, input().split()))
if a[0] >= 1 or n == 0:
    print(1 if a[0] == 1 and n == 0 else -1)
    exit()
b = [0] * (n + 1)
for i in range(1, n + 1):
    b[i] = a[i] + b[i - 1]
v = 1
ans = 1
for i in range(n):
    v = min(b[n] - b[i], 2 * (v - a[i]))
    if v < a[i + 1]:
        print(-1)
        exit()
    ans += v
print(ans)
Buggy code:

N = int(input())
X = list(map(int, input().split()))

cnt = [0] * (N + 1)
cnt[0] = 1
for i in range(N):
    cnt[i + 1] = (cnt[i] - X[i]) * 2

ans = 0
cur = 0
for i in reversed(range(N + 1)):
    cur += X[i]
    ans += min(cnt[i], cur)

if all(cnt[i] >= X[i] for i in range(N)):
    print(ans)
else:
    print(-1)


Fixed code:

N = int(input())
X = list(map(int, input().split()))

cnt = [0] * (N + 1)
cnt[0] = 1
for i in range(N):
    cnt[i + 1] = (cnt[i] - X[i]) * 2

ans = 0
cur = 0
for i in reversed(range(N + 1)):
    cur += X[i]
    ans += min(cnt[i], cur)

if all(cnt[i] >= X[i] for i in range(N + 1)):
    print(ans)
else:
    print(-1)
Buggy code:
#import sys
#import numpy as np
import math
#from fractions import Fraction
import itertools
from collections import deque
from collections import Counter
#import heapq
#from fractions  import gcd
#input=sys.stdin.readline
import bisect
n=int(input())
a=list(map(int,input().split()))
b_d=[[0,0] for _ in range(n+1)]
b_u=[[0,0] for _ in range(n+1)]
b_d[n]=[a[n],a[n]]
b_u[0]=[1,1]
for i in range(1,n+1):
    l=(1+b_d[n+1-i][0])//2+a[n-i]
    r=min(pow(2,n-i),b_d[n+1-i][1])+a[n-i]
    if l>r:
        print("###",-1)
        exit()
        break
    b_d[n-i]=[l,r]
    l=max(0,b_u[i-1][0]-a[i-1])
    r=2*(b_u[i-1][1]-a[i-1])
    if l>r:
        print(">>>",-1)
        exit()
        break
    b_u[i]=[l,r]
ans=0

for i in range(n+1):
    if b_d[i][0]>b_u[i][1] or b_u[i][0]>b_d[i][1]:
        print(-1)
        exit()
    else:
        ans+=min(b_u[i][1],b_d[i][1])
print(ans)

Fixed code:
#import sys
#import numpy as np
import math
#from fractions import Fraction
import itertools
from collections import deque
from collections import Counter
#import heapq
#from fractions  import gcd
#input=sys.stdin.readline
import bisect
n=int(input())
a=list(map(int,input().split()))
b_d=[[0,0] for _ in range(n+1)]
b_u=[[0,0] for _ in range(n+1)]
b_d[n]=[a[n],a[n]]
b_u[0]=[1,1]
for i in range(1,n+1):
    l=(1+b_d[n+1-i][0])//2+a[n-i]
    r=(b_d[n+1-i][1])+a[n-i]
    if l>r:
        print(-1)
        exit()
        break
    b_d[n-i]=[l,r]
    l=max(0,b_u[i-1][0]-a[i-1])
    r=2*(b_u[i-1][1]-a[i-1])
    if l>r:
        print(-1)
        exit()
        break
    b_u[i]=[l,r]
ans=0

for i in range(n+1):
    if b_d[i][0]>b_u[i][1] or b_u[i][0]>b_d[i][1]:
        print(-1)
        exit()
    else:
        ans+=min(b_u[i][1],b_d[i][1])
print(ans)
Buggy code:
*a,=map(int,[*open(0)][1].split())
c=[s:=0]
for i in a[:0:-1]:c+=c[-1]+i,
b=1
for i in a:
  s+=b
  b=min(c.pop(),(b-i)*2)
print(s)

Fixed code:
*a,=map(int,[*open(0)][1].split())
c=[s:=0]
for i in a[:0:-1]:c+=c[-1]+i,
b=1
for a in a:
  if b<a:
    s=-1
    break
  s+=b
  b=min(c.pop(),(b-a)*2)
print(s)
Buggy code:
from collections import Counter
import sys

sys.setrecursionlimit(10 ** 6)

mod = 1000000007
inf = int(1e18)

dx = [0, 1, 0, -1]
dy = [1, 0, -1, 0]


def inverse(a):
    return pow(a, mod - 2, mod)


def usearch(x, a):
    lft = 0
    rgt = len(a) + 1
    while rgt - lft > 1:
        mid = (rgt + lft) // 2
        if a[mid] <= x:
            lft = mid
        else:
            rgt = mid
    return lft


def main():
    n = int(input())
    n += 1
    a = list(map(int, input().split()))
    c = [0] * (n + 1)
    for i in range(n):
        c[i + 1] = c[i] + a[i]
    ans = [0] * n
    for i in range(n):
        ans[i] = c[n] - c[i]
    if n == 1 and a[0] == 0:
        print(-1)
        return
    if n > 1 and a[o] > 0:
        print(-1)
        return
    ans[0] = min(1, ans[0])
    for i in range(1, n):
        ans[i] = min(ans[i], (ans[i-1]-a[i-1]) * 2)
        if ans[i] < a[i]:
            print(-1)
            return

    print(sum(ans))
main()


Fixed code:
from collections import Counter
import sys

sys.setrecursionlimit(10 ** 6)

mod = 1000000007
inf = int(1e18)

dx = [0, 1, 0, -1]
dy = [1, 0, -1, 0]


def inverse(a):
    return pow(a, mod - 2, mod)


def usearch(x, a):
    lft = 0
    rgt = len(a) + 1
    while rgt - lft > 1:
        mid = (rgt + lft) // 2
        if a[mid] <= x:
            lft = mid
        else:
            rgt = mid
    return lft


def main():
    n = int(input())
    n += 1
    a = list(map(int, input().split()))
    c = [0] * (n + 1)
    for i in range(n):
        c[i + 1] = c[i] + a[i]
    ans = [0] * n
    for i in range(n):
        ans[i] = c[n] - c[i]
    if n == 1 and a[0] == 0:
        print(-1)
        return
    if n > 1 and a[0] > 0:
        print(-1)
        return
    ans[0] = min(1, ans[0])
    if ans[0] < a[0]:
        print(-1)
        return
    for i in range(1, n):
        ans[i] = min(ans[i], (ans[i-1]-a[i-1]) * 2)
        if ans[i] < a[i]:
            print(-1)
            return

    print(sum(ans))
main()
Buggy code:
N = int(input())
nums = list(map(int, input().split()))
nodes = []
currentLeaf = 1
fail = False
#check from top
for i in range(N + 1):
	nodes.append(currentLeaf)
	currentLeaf = (currentLeaf-nums[i])*2
	if (currentLeaf < 0):
		fail = True
		break 
if (fail):
	print(-1)
#check from bottom
currentLeaf = 0
totalNode = 0
for i in reversed(range(N+1)):
	currentLeaf += nums[i]
	currentLeaf = min(currentLeaf, nodes[i])
	totalNode += currentLeaf

if (fail):
	print(-1) 
else:
	print(totalNode)

Fixed code:
N = int(input())
nums = list(map(int, input().split()))
nodes = []
currentLeaf = 1
fail = False
#check from top
for i in range(N + 1):
	nodes.append(currentLeaf)
	currentLeaf = (currentLeaf-nums[i])*2
	if (currentLeaf < 0):
		fail = True
		break 
if (fail):
	print(-1)
else:
  #check from bottom
  currentLeaf = 0
  totalNode = 0
  for i in reversed(range(N+1)):
      currentLeaf += nums[i]
      currentLeaf = min(currentLeaf, nodes[i])
      totalNode += currentLeaf

  if (fail):
      print(-1) 
  else:
      print(totalNode)
Buggy code:
n,*a,p=map(int,open(0).read().split()),print;t=sum(a);p(sum([w:=1]+[exit(p(-1))if(w:=min(2*(w-q),t:=t-q))<0 else w for q in a]))

Fixed code:
p,s=print,sum;n,*a=map(int,open(0).read().split());t=s(a);p(s([w:=1]+[exit(p(-1))if(w:=min(2*(w-q),t:=t-q))<0 else w for q in a]))
Buggy code:
N = int(input())
A = list(map(int,input().split()))

from_deeper_bind = [[0,0] for i in range(N+1)]
from_deeper_bind[N][0] = from_deeper_bind[N][1] = A[N]
node_num = [1]*(N+1)
node_num[N] = A[N]
from_shallower_bind = [1]*(N+1)

for i in range(N-1,-1,-1):
    from_deeper_bind[i][0],from_deeper_bind[i][1] = (from_deeper_bind[i+1][0]+A[i]+1)//2,from_deeper_bind[i+1][1]+A[i]


if not from_deeper_bind[0][0] <= 1 <= from_deeper_bind[0][1]:
    print(-1)
    exit()


for i in range(1,N):
    from_shallower_bind[i] = (node_num[i-1]-A[i-1])*2
    node_num[i] = min(from_shallower_bind[i],from_deeper_bind[i][1])

print(sum(node_num))







Fixed code:
N = int(input())
A = list(map(int,input().split()))

from_deeper_bind = [[0,0] for i in range(N+1)]
from_deeper_bind[N][0] = from_deeper_bind[N][1] = A[N]
node_num = [1]*(N+1)
node_num[N] = A[N]
from_shallower_bind = [1]*(N+1)

for i in range(N-1,-1,-1):
    from_deeper_bind[i][0],from_deeper_bind[i][1] = (from_deeper_bind[i+1][0]+1)//2+A[i],from_deeper_bind[i+1][1]+A[i]


if not from_deeper_bind[0][0] <= 1 <= from_deeper_bind[0][1]:
    print(-1)
    exit()


for i in range(1,N):
    from_shallower_bind[i] = (node_num[i-1]-A[i-1])*2
    node_num[i] = min(from_shallower_bind[i],from_deeper_bind[i][1])

print(sum(node_num))
Buggy code:
n,*a=map(int,open(0).read().split())
t,v,w=sum(a),1,0
for q in a:
  w=min(2*(v[-1]-q),t:=t-q)
  v+=w
  if w<0:print(-1);exit()
print(v)

Fixed code:
n,*a=map(int,open(0).read().split())
t,v,w=sum(a),1,1
for q in a:
  w=min(2*(w-q),t:=t-q)
  v+=w
  if w<0:print(-1);exit()
print(v)
Buggy code:
n,*a=map(int,open(0).read().split());t,v=sum(a),[1]
print(-1 if [v:=v+[min(2*(v[-1]-q),t:=t-q)] for q in a if v[-1]<0] else sum(v))

Fixed code:
n,*a=map(int,open(0).read().split())
t,v=sum(a),[1]
for q in a:
    v+=[min(2*(v[-1]-q),t:=t-q)]
    if v[-1]<0:print(-1);exit()
print(sum(v))
Buggy code:
import numpy as np
import math
import collections

N = int(input())
A = list(map(int, input().split()))


ans = 0
node_num = 1
pre_node_num = 1
B = [1 - A[0]]
for i in range(1, N):
    tmpB = min(2 * B[i - 1] - A[i], sum(A[i + 1:]))
    # print(tmpB)
    if tmpB < B[i - 1] - A[i]:
        ans = -1
        break
    B.append(tmpB)


if ans != -1:
    ans = sum(A) + sum(B)
print(ans)


Fixed code:
import numpy as np
import math
import collections

N = int(input())
A = list(map(int, input().split()))


ans = 0
node_num = 1
pre_node_num = 1
B = [1 - A[0]]
ruisekiA = [0 for i in range(N + 2)]
ruisekiA[N] = A[N]
ruisekiA[N + 1] = 0
for i in range(N - 1, -1, -1):
    ruisekiA[i] = ruisekiA[i + 1] + A[i]


for i in range(1, N + 1):
    tmpB = min(2 * B[i - 1] - A[i], ruisekiA[i + 1])
    #print(tmpB, B[i - 1] - A[i])
    if (tmpB < 0) or (tmpB < B[i - 1] - A[i]):
        ans = -1
        break
    if i == N:
        tmpB = 0
    B.append(tmpB)

if N == 0 and A[0] != 1:
    ans = -1

if ans != -1:
    ans = sum(A) + sum(B)
print(ans)
Buggy code:
n = int(input())
a = list(map(int, input().split()))

if a[0] == 1 and n != 1:
    print(-1)
    exit()

m = [1] * (n+1)
for i in range(1, n+1):
    m[i] = 2*m[i-1] - a[i]

    if (m[i] <= 0 and i != n) or (m[i] < 0 and i == n):
        print(-1)
        exit()

a.reverse()
m.reverse()
m[0] = a[0]
for i in range(1, n+1):
    m[i] = min(m[i], m[i-1]) + a[i]

print(sum(m))

Fixed code:
n = int(input())
a = list(map(int, input().split()))

m = [0] * (n+1)
mx = 1
for i in range(n+1):
    mx -= a[i]
    m[i] = mx

    if (mx <= 0 and i != n) or (mx < 0 and i == n):
        print(-1)
        exit()
    mx *= 2

a.reverse()
m.reverse()
m[0] = a[0]
for i in range(1, n+1):
    m[i] = min(m[i], m[i-1]) + a[i]

print(sum(m))
Buggy code:
N = int(input())
A_leaf = list(map(int, input().split()))
if N == 0:
    print(1 if A_leaf[0] == 1 else -1)
    exit()
s = [0]*(N+2)
for i in range(1, N+2):
    s[i] = s[i-1] + A_leaf[i-1]
node = [1]*(N+1)
for i in range(1, N+1):
    node[i] = min((node[i-1] - A_leaf[i-1])*2, s[N+1]-s[i])
    if node[i] <= A_leaf[i]:
        print(-1)
        exit()
else:
    print(sum(node))

Fixed code:
N = int(input())
A_leaf = list(map(int, input().split()))
if N == 0:
    print(1 if A_leaf[0] == 1 else -1)
    exit()
s = [0]*(N+2)
for i in range(1, N+2):
    s[i] = s[i-1] + A_leaf[i-1]
node = [1]*(N+1)
for i in range(1, N+1):
    node[i] = min((node[i-1] - A_leaf[i-1])*2, s[N+1]-s[i])
    if node[i] < A_leaf[i]:
        print(-1)
        exit()
else:
    print(sum(node))
Buggy code:
n = int(input())
A = list(map(int,input().split()))

b = 1
B=[0]*(n+1)
count = 0
for i in range(n):
    B[i] = b
    if 2*(b - A[i]) < A[i+1]:
        count += 1
    b = 2*(b - A[i])

B[n] = b

j = 0
while A[n] > B[j]:
    j+=1
    print(j,A[n],B[j])

total = 0
for i in range(j):
    total += B[i]

print(total)
s = A[n]
for i in range(n-1,j-1,-1):
    total += min(B[i],s+A[i])
    print(B[i],s+A[i])
    s+=A[i]

if count==0:
    print(total+A[n])
else:
    print('-1')

Fixed code:
n = int(input())
A = list(map(int,input().split()))

b = 1
B=[0]*(n+1)
count = 0

t=len(A)-1
for i in range(t):
    B[i] = b
    if 2*(b - A[i]) < A[i+1]:
        count += 1
        break
    b = 2*(b - A[i])
B[n] = b

if n == 0 and A[0] > 1:
    count += 1

j = 0
while count == 0 and A[t] > B[j]:
    if j == n:
        break
    j += 1

total = 0
for i in range(j):
    total += B[i]

s = A[t]
for i in range(t-1,j-1,-1):
    total += min(B[i],s+A[i])
    s+=A[i]

if count==0:
    print(total+A[t])
else:
    print('-1')
Buggy code:
from sys import stdin

a=int(stdin.readline())
A=stdin.readline().split()
sum=0
for k in range(0,a+1):
    sum+=int(A[k])

sum-=int(A[a])
ver=1
lay=1
K=0
T=0

if a==0:
    if A[0]!=0:
        print(-1)
        K=1
    else:
        print(1)
        K=1

for l in range(0,a):
    if lay-int(A[l])<=0:
        print(-1)
        K=1
        break
    if (lay-int(A[l]))*2-sum+int(A[l])<=int(A[a]):
        lay=(lay-int(A[l]))*2
        ver+=lay
        sum-=int(A[l])
        T=l
    else:
        lay-=int(A[l])
        sum-=int(A[l])
        x=lay-sum-int(A[a])
        if x==0:
           ver+=lay
        elif x<0:
           print(-1)
           K=1
           
        else:
           lay=sum+int(A[a])
           ver+=lay
        T=l
        break

if K==0:
    for u in range(T+1,a):
        lay -= int(A[u])
        sum -= int(A[u])
        ver+=lay

if K==0:
    print(ver)

Fixed code:
from sys import stdin

a=int(stdin.readline())
A=stdin.readline().split()
sum=0
for k in range(0,a+1):
    sum+=int(A[k])

sum-=int(A[a])
ver=1
lay=1
K=0
T=0

if a==0:
    if A[0]!='1':
        print(-1)
        K=1
    else:
        print(1)
        K=1

for l in range(0,a):
    if lay-int(A[l])<=0:
        print(-1)
        K=1
        break
    if (lay-int(A[l]))*2<int(A[a]) and l==(a-1):
        print(-1)
        K=1
        break
    if (lay-int(A[l]))*2-sum+int(A[l])<=int(A[a]):
        lay=(lay-int(A[l]))*2
        ver+=lay
        sum-=int(A[l])
        T=l
    else:
        lay-=int(A[l])
        sum-=int(A[l])
        x=lay-sum-int(A[a])
        if x==0:
           ver+=lay
        elif x>0:
            print(-1)
            K=1
        else:
           lay=sum+int(A[a])
           ver+=lay
        T=l
        break

if K==0:
    for u in range(T+1,a):
        lay -= int(A[u])
        sum -= int(A[u])
        ver+=lay

if K==0:
    print(ver)
Buggy code:
n = int(input())
leaves = list(map(int, input().split()))


ans = 0
nodes_min = [0] * (n + 1)
nodes_max = [0] * (n + 1)
nodes_min[n] = leaves[n]
nodes_max[n] = leaves[n]

for depth in range(n, 0, -1):
    root_min = nodes_min[depth] // 2 + nodes_min[depth] % 2
    nodes_min[depth - 1] = leaves[depth - 1] + root_min
    root_max = nodes_max[depth]
    nodes_max[depth - 1] = leaves[depth - 1] + root_max
nodes = [0] * (n + 1)
nodes[0] = 1
for depth in range(n):
    roots = nodes[depth]-leaves[depth]
    if roots < 0:
        print(-1)
        break
    nodes[depth + 1] = min(roots * 2, nodes_max[depth + 1])
else:
    print(sum(nodes))

Fixed code:
n = int(input())
leaves = list(map(int, input().split()))

ans = 0
nodes_min = [0] * (n + 1)
nodes_max = [0] * (n + 1)
nodes_min[n] = leaves[n]
nodes_max[n] = leaves[n]

for depth in range(n, 0, -1):
    root_min = nodes_min[depth] // 2 + nodes_min[depth] % 2
    nodes_min[depth - 1] = leaves[depth - 1] + root_min
    root_max = nodes_max[depth]
    nodes_max[depth - 1] = leaves[depth - 1] + root_max
nodes = [0] * (n + 1)
nodes[0] = 1
for depth in range(n):
    roots = nodes[depth]-leaves[depth]
    if nodes[depth] < nodes_min[depth]:
        print(-1)
        break
    nodes[depth + 1] = min(roots * 2, nodes_max[depth + 1])
else:
    if nodes[n] < nodes_min[n]:
        print(-1)
    else:
        print(sum(nodes))
Buggy code:
n = int(input())
a = list(map(int,input().split()))
ans = 0

l = [0]*(n+1)
l[-1] = a[-1]
for i in range(n-1,-1,-1):
    l[i] += l[i+1]+a[i]

if a[0] == 1:
    if n > 0:
        print(-1)
        exit()
    else:
        print(1)
        exit()
b = 2
ans = 1
for i in range(1,n+1):
    if b*2 < a[i]:
        print(-1)
        exit()
    else:
        if i == n:
            ans += a[-1]
        else:
            b = (b-a[i])*2
            ans += min(b,l[i+1])

print(ans)



Fixed code:
n = int(input())
a = list(map(int,input().split()))
ans = 0

l = [0]*(n+1)
l[-1] = a[-1]
for i in range(n-1,-1,-1):
    l[i] += l[i+1]+a[i]

if a[0] == 1:
    if n > 0:
        print(-1)
        exit()
    else:
        print(1)
        exit()
b = 1
ans = 0
for i in range(n+1):
    if b < a[i]:
        print(-1)
        exit()
    else: 
        b = min(b,l[i])
        ans += b
        b = (b-a[i])*2   
print(ans)
Buggy code:
n = int(input())
a = map(int, input().split())
s = sum(a)
k = 1 - a[0]
ans = 1

for i in range(1,n+1):
  if k*2 <= s:
    k *= 2
  else:
    k = s
  ans += k
  k -= a[i]
  s -= a[i]

if k == 0 and s == 0:
  print(ans)
else:
  print(-1)

Fixed code:
n = int(input())
a = list(map(int, input().split()))
s = sum(a)
k = 1 - a[0]
s -= a[0]
ans = 1

for i in range(1,n + 1):
    if k * 2 <= s:
        k *= 2
    else:
        k = s
    ans += k
    k -= a[i]
    s -= a[i]

if k == 0 and s == 0:
    print(ans)
else:
    print(-1)
Buggy code:
N = int(input())
a_list = [int(a) for a in input().split()]

if a[0] > 1:
    print(-1)
    exit()

ans = a_list[-1] + 1
temp1 = [""]*(N+1)
temp1[-1] = a_list[-1]
for n in range(N-1, 0, -1):
    temp1[n] = temp1[n+1]+a_list[n]
    
temp2 = 1
print(temp1)
for n in range(1, N):
    temp2 = (temp2-a_list[n-1])*2
    ans_temp = min(temp2, temp1[n])
    
    if ans_temp < a_list[n]:
        print(-1)
        exit()
    
    ans += ans_temp
    
print(ans)

Fixed code:
N = int(input())
a_list = [int(a) for a in input().split()]

if a_list[0] > 1:
    print(-1)
    exit()

ans = 1
temp1 = [""]*(N+1)
temp1[-1] = a_list[-1]
for n in range(N-1, 0, -1):
    temp1[n] = temp1[n+1]+a_list[n]
    
temp2 = 1
for n in range(1, N+1):
    temp2 = (temp2-a_list[n-1])*2
#     print(temp2, temp1[n])
    ans_temp = min(temp2, temp1[n])
    temp2 = min(temp2, temp1[n])
    
    if ans_temp < a_list[n]:
        print(-1)
        exit()
    
    ans += ans_temp
    
print(ans)