a program a day 13

/**
判断回文数
**/
#include<stdio.h>
int isCircle(int n);
int reverse(int m);
int main()
{
 int n;
 printf("please input a number: \n");
 scanf("%d",&n);
 if(isCircle(n))
 {
  printf("%d is a palindrome\n",n);
 }
 else
 {
  printf("%d is not a palindrome\n",n);
 }
 return 1;
}
int isCircle(int n)
{
 if(n == reverse(n))
 {
  return 1;
 }
 else
  return 0; 
}
/*
求m的倒置数，如reverse(123)得321
*/
int reverse(int m)
{
 int x = m,y = 0;
 while(x)
 {
  y = x%10 + y*10;
  x = x/10;
 }
 return y;
}