Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

st = int(n/2)
ans = list(np.where(ls[st:]==1)[0] + 1 + st)
for ind in range(st, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

ans = []
for ind in range(n, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

for ind in range(int(n/2), 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        
print(ls.sum())
ans = np.where(ls==1)[0] + 1
print(' '.join(map(str, ans)))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 
ls = np.array(a)

for ind in range(int(n/2), 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    if a[ind-1] == ls[tmp].sum()%2:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        
print(sum(ls))
ans = np.where(ls==1)[0] + 1
ans = list(ans.astype(str))
print(' '.join(ans))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 

a = np.array(a)
ls = a

st = int(n/2)
for ind in range(st, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        
print(sum(ls))
ans = np.where(ls==1)[0] + 1
ans = list(ans.astype(str))
print(' '.join(ans))

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 

a = np.array(a)
ls = a

st = int(n/2)
for ind in range(st, 0, -1):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        
print(sum(ls))
ans = np.where(ls==1)[0] + 1
for i in ans:
    print(i)

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = int(input())
a = [int(i) for i in input().split()] 

a = np.array(a)
ls = a
def func(ind):
    tmp = list(range(2*ind-1, n, ind))
    s = ls[tmp].sum()
    return s%2

st = int(n/2)
for ind in range(st, 0, -1):
    if a[ind-1] == func(ind):
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        
print(sum(ls))
ans = np.where(ls==1)[0]+1
for i in ans:
    print(i)

Fixed submission:
n = int(input())
a = [int(i) for i in input().split()] 
ls = a

st = int(n/2)
ans =  [i+st+1 for i, n in enumerate(a[st:]) if n ==1] 
for ind in range(st, 0, -1):
    tmp = [ls[i] for i in range(2*ind-1, n, ind)]
    s = sum(tmp)%2
    if a[ind-1] == s:
        ls[ind-1] = 0
    else:
        ls[ind-1] = 1
        ans.append(ind)
        
print(sum(ls))
print(' '.join(map(str, ans)))