用于计算unsigned char中"1"位数的C代码

#include<stdio.h>

int count_ones(unsigned char n) {
    int count = 0;
    while (n) {
        count += n & 1;
        n >>= 1;
    }
    return count;
}

int main() {
    unsigned char num;
    printf("Enter an unsigned char: ");
    scanf("%hhu", &num);
    printf("Number of 1's in the binary representation: %d\n", count_ones(num));
    return 0;
}