C語言實現之比較兩數有多少位不同

#include <stdio.h>
int main()
{
 int m=1999;//011111001111
 int n=2299;//100011111011
 int c=m^n; //111100110100
 int count=0;
 while (c)
 {
  if(c%2==1)
  {
   count++;
  }
  else
  {
   ;
  }
  c=c>>1;
 }
 printf("%d\n",count);
 return 0;
}