题解 | #求int型正整数在内存中存储时1的个数#

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main() {
    int num;

    int count = 0;
    scanf( "%d", &num);
    while (num) {
        int tmp = num % 2;
        num /= 2;
        if (tmp == 1) {
            count++;
        }
    }
    printf("%d", count);
    return 0;
}