Counting ones

input/code.cpp: In function 'int main()':
input/code.cpp:41:21: warning: 'val1' may be used uninitialized [-Wmaybe-uninitialized]
   41 |     cout << val1 << " " << val2 << endl;
      |                     ^~~
input/code.cpp:23:9: note: 'val1' was declared here
   23 |     int val1, val2;
      |         ^~~~
input/code.cpp:41:28: warning: 'val2' may be used uninitialized [-Wmaybe-uninitialized]
   41 |     cout << val1 << " " << val2 << endl;
      |                            ^~~~
input/code.cpp:23:15: note: 'val2' was declared here
   23 |     int val1, val2;
      |               ^~~~

#include <iostream>
#include <vector>
#include <cmath>
#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n_values;
    cin >> n_values;

    vector<int> values;

    for(int i = 0; i < n_values; ++i)
    {
        int temp;
        cin >> temp;
        values.push_back(temp);
    }
    
    int max_ones = 0;
    int val1, val2;

    for (int i = 0; i < n_values - 1; ++i)
    {
        for (int j = i + 1; j < n_values; ++j)
        {
            int val = values[j] * values[i];
            if(__builtin_popcount(val) > max_ones)
            {
                max_ones = __builtin_popcount(val);
                val1 = values[i];
                val2 = values[j];
            }
            
        }
    }

    cout << max_ones << endl;
    cout << val1 << " " << val2 << endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER