Help me in solving ORPREFIX problem

help
,
1

My issue

solution

My code

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    int T;
    cin >> T;
    while (T--) {
        int N;
        cin >> N;
        vector<int> A(N);
        bool has_zero = false;
        int total_or = 0;
        for (int i = 0; i < N; ++i) {
            cin >> A[i];
            total_or |= A[i];
            if (A[i] == 0) has_zero = true;
        }
        
        if (total_or == 0) {
            cout << "1\n";
            continue;
        }
        
        int bits = __builtin_popcount(total_or);
        int candidate = bits + (has_zero ? 1 : 0);
        int ans = min(candidate, N);
        cout << ans << "\n";
    }
    
    return 0;
}

Problem Link: Prefix OR Practice Coding Problem