位运算操作

#include <iostream>
using namespace std;

int main() 
{
    int n;
    cin >> n;
    for (int i = 0; i < n; i++) 
    {
        unsigned int num;
        cin >> num;
        cout << (num & (num - 1));
        if (i < n - 1) 
        {
            cout << " ";
        }
    }
    return 0;
}