回文数

#include <stdio.h>

int main (void)

{
    int val;//存放带判断的数字
    int m;
    int sum = 0;

    printf ("请输入您需要判断的数字： ");
    scanf ("%d",&val);

    m = val;
    while (m)
    {
        sum = sum * 10 + m%10;
        m /= 10;
    }
    if (sum == val)
        printf("YES!\n");
    else
        printf("NO!\n");
    return 0;
}