Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
A = list(map(int, input().split()))

filled = [0]*(n+1)
ans = []
for i in range(n-1, -1, -1):
  if sum(filled[i:][::i+1]) % 2 != A[i]:
    filled[i] = 1
    ans.append(i+1)
print(len(ans))
print(' '.join(map(str, ans)))

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
A = list(map(int, input().split()))

filled = [0 for _ in range(n)]
ans = []
for i in range(n-1, -1, -1):
  if sum(filled[i:][::i+1]) % 2 != A[i]:
    filled[i] = 1
    ans.append(i+1)
print(len(ans))
print(' '.join(map(str, ans)))

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
A = list(map(int, input().split()))

filled = [0 for _ in range(n)]
ans = []
for i in range(n-1, -1, -1):
  if sum(filled[i:][::i+1]) % 2 != A[i]:
    filled[i] = 1
    ans.append(i+1)
print(len(ans))
if len(ans) > 0:
	print(' '.join(map(str, ans)))

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    n = int(input())
    A = list(map(int, input().split()))

    filled = [0 for _ in range(n)]
    ans = []
    for i in range(n-1, -1, -1):
        if sum(filled[i:][::i+1]) % 2 != A[i]:
            filled[i] = 1
            ans.append(i+1)
    print(len(ans))
    print(' '.join(map(str, ans)))


if __name__ == '__main__':
    main()

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    n = int(input())
    A = [int(x) for x in input().split()]

    filled = set()
    for i in range(n-1, -1, -1):
        count = 0
        for j in filled:
            if (j+1) % (i+1) == 0:
                count += 1
        if count % 2 != A[i]:
            filled.add(i)

    return len(filled), [i+1 for i in filled]



if __name__ == '__main__':
    m, output = main()
    if m == -1: print(str(m))
    else:
        print(str(m))
        if m > 0:
            print(' '.join(map(str, output)))

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    n = int(input())
    A = [int(x) for x in input().split()]

    m = 0
    B = [0 for _ in range(n)]

    for i in range(n//2+1, n):
        if A[i] == 1: B[i] = 1

    for i in range(n//2, -1, -1):
        count = 0
        for j in range(n-1, -1, -1):
            if B[j] == 1: count += 1
        if count % 2 != A[i]:
            added = False
            for j in range(n):
                if (j+1) % (i+1) == 0 and B[j] == 0:
                    B[j] = 1
                    added = True
                    break
            if not added:
                return -1, -1

    output = []
    for i in range(n):
        if B[i] == 1:
            output.append(i+1)
    return len(output), output

if __name__ == '__main__':
    m, output = main()
    if m == -1: print(str(m))
    else:
        print(str(m))
        if m > 0:
            print(' '.join(map(str, output)))

Fixed submission:
# from other person's code
n = int(input())
a = list(map(int, input().split()))
ls = [0]*(n+1)
ans = []
for i in reversed(list(range(n))):
    if sum(ls[::i+1][1:]) % 2 != a[i]:
        ls[i+1] = 1
        ans.append(i+1)
print(sum(ls))
if ans: print(' '.join(map(str, ans)))