编辑代码

#include <stdio.h>
int main()
{
int n = 0;

printf("请输入一个三位正整数：");
scanf("%d",&n);

int n1,n2,n3;
n1 = n / 100;
n2 = ( n - n1 * 100 ) / 10;
n3 = ( n - n1 * 100 -n2 * 10);

n3 = n3 * 100;
n2 = n2 * 10;

int N = 0;
N = n3 + n2 + n1;
printf("逆序的三位数为：%d",N);

    return 0;
}