Bug in submissions

I was trying to attempt this QUESTION but it was repeatedly giving me Runtime error after every submission even though I was sure there’s nothing wrong with my code. I tried submitting this piece of code:

#include <iostream>
#include <cmath>

int sieve[1000001];

int main() {

    int sz = 1000001;
    std::fill(sieve, sieve+sz, 1);

    int T;
    std::cin >> T;
    while (T--) {
        int N;
        std::cin >> N;
        N%2==0 ? std::cout << "1\n" : std::cout << sieve[N] << "\n";
    return 0;

This in no way should have raised a runtime error so what I did was picked a solution that scored ac and copy-pasted it and submitted it and again I got a runtime error. Can anybody help me with what’s wrong here? Here the screenshot shows the copy-pasted solution showing a runtime verdict and the original one showing AC verdict.

This is strange .Even during the contest there was no ranklist being displayed . Maybe they are making some changes or the files are corrupted , just wait for admin to reply .