func_code_string: #include <iostream>   #include <cmath>   using namespace std;      int main() {    int t;    cin >> t;    while (t--) {     double n;     cin >> n;     if (sqrt(n / 2) == (int)sqrt(n / 2)) {      cout <<  YES n ;     }     else {      if (sqrt(n / 4) == (int)sqrt(n / 4)) {       cout <<  YES n ;      }      else cout <<  NO n ;     }    }   }