题解 | #两个整数二进制位不同个数#

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <math.h>
int judge(int m) {
    int count = 0;
    while (m) {
        m = m / 2;
        count++;

    }
    return count;
}
int main() {
    int a, b;
    while (scanf("%d %d", &a, &b) != EOF) { // 注意 while 处理多个 case
        // 64 位输出请用 printf("%lld") to
        int count = 0;
        int w = 0;
        w=fmax(judge(a),judge(b));

        for (int i = 0; i < w; i++) {
            int x = (a >> i) % 2;
            int y = (b >> i) % 2;
            if (x != y) {
                count++;
            }
        }
        printf("%d\n", count);
    }
    return 0;
}

小白尝试C语言