编辑代码

#include <stdio.h>
int main () {
    printf("请输入一个三位数:");
    
    int s = 0;
    scanf("%d", &s);
    
    int a = s / 100;
    int c = s % 10;
    int b = s / 10 - a * 10;

    printf("得到的倒序三位数:%d\n", (c * 100 + b * 10 + a));
    return 0;
}