study/C_C++/sources/offer/offer10.c

#include <stdio.h>

int go(int n){
	int count = 0;
	while(n){
		count ++;
		n = (n-1) & n;
	}
	return count;
}

int main(){
	int count = go(9);
	printf("%d\n",count);
	return 0;
}