写一个函数返回参数值为1的个数 。如15 00001111 有4个1

#include <stdio.h>int count_one_bits(unsigned int value){int count = 0;while(value){if( value%2 == 1)count++;value = value/2;}printf("%d\n",count);return 0;}int main(){unsigned int n;        scanf("%d",&n);count_one_bits(n);return 0;}

#include <stdio.h>    int count_one_bits(unsigned int value)  {      int count = 0;      while(value)      {  count ++;        value = value & (value - 1) ;     }      printf("%d\n",count);      return 0;  }    int main()  {      unsigned int n;      scanf("%d",&n);      count_one_bits(n);      return 0;  }