判断回文数字

#include<cstdio>

long int reverse(long int n)
{
long int r=0;
while(n>0)
{
r=r*10+n%10;
n=n/10;
}
return r;
}

int isCircle(long int a)
{
if(a==reverse(a))
return 1;
else
return 0;
}

int main()
{
long int n;
while(scanf("%d",&n)!=EOF)
{
if(isCircle(n))
printf("Yes!\n");
else
printf("No!\n");
}
return 0;
}