int main()
{
int n, reversedInteger = 0, remainder, originalInteger;

printf("输入一个整数: ");
scanf("%d", &n);

originalInteger = n;

// 翻转
while( n!=0 )
{
remainder = n%10;
reversedInteger = reversedInteger*10 + remainder;
n /= 10;
}

// 判断
if (originalInteger == reversedInteger)
printf("%d 是回文数。", originalInteger);
else
printf("%d 不是回文数。", originalInteger);

return 0;
}