func_code_string: #include <bits/stdc++.h>   int inp() {     char c = getchar();     int neg = 1;     while (c <  0  || c >  9 ) {       if (c ==  - ) neg = -1;       c = getchar();     }     int sum = 0;     while (c >=  0  && c <=  9 ) {       sum = sum * 10 + c -  0 ;       c = getchar();     }     return sum * neg;   }   int n, p;   int main() {     n = inp();     p = inp();     for (int i = 1; i <= 1000; i++) {       if (n - (i * p) <= 0) break;       if (__builtin_popcount(n - (i * p)) <= i && i <= (n - (i * p))) {         printf( %d n , i);         return 0;       }     }     printf( -1 n );   }   