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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. int ret_one_bit_num(unsigned int);
  4. void main(){
  5.     int rlt = 0, input = 9;
  6.  
  7.     rlt = ret_one_bit_num(input);
  8.     printf("%d have [%d] bit  is 1\r\n", input, rlt);
  9.     system("pause");
  10. }
  11. int ret_one_bit_num(unsigned int n)
  12. {
  13.     int count = 0;
  14.     while(n!=0)
  15.     {
  16.         if(n & 1 == 1)
  17.             count++;
  18.         n>>=1;
  19.     }    
  20.     return count;
  21. }
Success #stdin #stdout #stderr 0s 9432KB
comments (?)
stdin 
Standard input is empty
stdout 
9 have [2] bit  is 1
stderr 
sh: 1: pause: not found
https://ideone.com/i1sUId
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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