我水平不够，于是就暴力求解

#include <iostream>
using namespace std;
int main()
{
    int T = 0;
    cin >> T;
    while(T--)
    {
        int n = 0;
        cin >> n;
        if(n == 1 || n == 2) 
        {
            cout << "YES" << endl;
            continue;
        }
        if(n%2) cout << "NO" << endl;
        else
        {
            while(n>2)
            {
                n /= 2;
                if(n % 2) break;
            }
            if(n==2)    cout << "YES" << endl;
            else cout << "NO" << endl;
        }
    }
    return 0;
}