I cant figure out problem in my code for inputs : 7 \n 1 1 1 3 3 3 2

#1

#include <bits/stdc++.h>

using namespace std;

int main(){
int cnt[64] = {0}, n, no;
cin >> n;

for (int i=0; i < n; n++){
    cin >> no;
    //update count array by extracting bit
    int j =0;
    while ( no > 0){
        int last_bit = (no & 1);
        cnt[j] += last_bit;
        j++;
        no = no >> 1;
    }
} 
//iterate over the array
int p = 1;
int ans = 0;
for (int i=0; i < 64; i++){
    cnt[i] %= 3;
    ans += (cnt[i] *p);
    p = p << 1;
}

cout << ans << "\n";

return 0;

}

#2

@adityakaunhai
hello Aditya,
use long long datatype because 64 bit numbers cannot fit in integer datatype.

#3

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