题目：​​http://acm.hdu.edu.cn/showproblem.php?pid=2029​​

#include<iostream>
 #include<string.h>
 using namespace std;
 int f(char a[])
 {
  int i=0,n=strlen(a);
  while(a[i]==a[n-i-1]&&i<n/2)
     i++;
  return a[i]==a[n-i-1];
 }
 int main()
 {
  int T;
  cin>>T;
  getchar();
  while(T--)
  {
   char a[1000];
   gets(a);
   if(f(a)) cout<<"yes"<<endl;
   else cout<<"no"<<endl;
  }
  return 0;
 }