func_code_string: #include <bits/stdc++.h>   using std::cin;   using std::cout;   using std::vector;   int main() {     long long n;     cin >> n;     int t = 0;     while (n > 0) {       if (n % 2 != 0) t++;       n = n / 2;     }     cout << t;     int h;     cin >> h;     return 0;   }   