Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline

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

def make_divisors(n, ar):
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            ar[i] += 1
            if i != n // i:
                ar[n//i] += 1

tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            make_divisors(i+1, tmp)
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            make_divisors(i+1, tmp)
        else:
            continue

print(ball_num)
if ball_num != 0:
    print(*ball_box)

Fixed submission:
N = int(input())
a = list(map(int, input().split()))
 
def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    return divisors
 
 
tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
        else:
            continue
 
print(ball_num)
if ball_num != 0:
    print(*ball_box)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline

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

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    return divisors


tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
        else:
            continue

print(ball_num)
if ball_num != 0:
    print(*ball_box)

Fixed submission:
N = int(input())
a = list(map(int, input().split()))
 
def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    return divisors
 
 
tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
        else:
            continue
 
print(ball_num)
if ball_num != 0:
    print(*ball_box)

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

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    return divisors


tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
        else:
            continue

print(ball_num)
if ball_num != 0:
    print(*ball_box)

Fixed submission:
N = int(input())
a = list(map(int, input().split()))
 
def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)
    return divisors
 
 
tmp = [0]*(N+1)
b = [0]*N
ball_num = 0
ball_box = []
for i in reversed(range(N)):
    if a[i] == 0:
        if (tmp[i+1]%2) == 0:
            continue
        else:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
    elif a[i] == 1:
        if (tmp[i+1]%2) == 0:
            ball_box.append(i+1)
            ball_num += 1
            val = make_divisors(i+1)
            for elms in val:
                tmp[elms] += 1
        else:
            continue
 
print(ball_num)
if ball_num != 0:
    print(*ball_box)