Uva 401 - Palindromes

题目地址http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=&problem=342&mosmsg=Submission+received+with+ID+

虽然把代码写完了，也做了很多测试，还是wa,很心痛，有人能帮我看看代码错哪里吗

#include<iostream>
#include<string>
using namespace std;
char ref[100];
void Init(){
    ref['A']='A';
    ref['E']='3';
    ref['H']='H';
    ref['I']='I';
    ref['J']='L';
    ref['L']='J';
    ref['M']='M';
    ref['O']='O';
    ref['S']='2';
    ref['T']='T';
    ref['U']='U';
    ref['V']='V';
    ref['W']='W';
    ref['X']='X';
    ref['Y']='Y';
    ref['Z']='5';
    ref['0']='O';
    ref['1']='1';
    ref['2']='S';
    ref['3']='E';
    ref['5']='Z';
    ref['8']='8';
}
int IsPalindrome(string s){
    int len=s.size();
    int i=0,temp;
    while((temp=(s[i]==s[len-1-i]))&&i<len/2){
        i++;
    }
    return temp;
}
int IsMirrore(string s){
    int len=s.size();
    int i=0,temp;
    while(i<=len/2){
        if(s[i]!=ref[s[len-1-i]])
            return 0;
        i++;
    }
    return 2;
}
int main(){
    string annotation[4]={" -- is not a palindrome",   //if the string is not a palindrome and is not a mirrored string
        " -- is a regular palindrome.",                //if the string is a palindrome and is not a mirrored string
        " -- is a mirrored string.",                   //if the string is not a palindrome and is a mirrored string
        " -- is a mirrored palindrome."};              //if the string is a palindrome and is a mirrored string
    string s;
    Init();
    while(cin>>s){
        cout<<s<<annotation[IsMirrore(s)+IsPalindrome(s)]<<endl<<endl;
    }
    return 0;
}