e543: 00401 - Palindromes

#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(false), cin.tie(nullptr)
using namespace std;

int main(){
    fastio;
    map<char, char> mp;
    mp['A'] = 'A', mp['E'] = '3', mp['H'] = 'H', mp['I'] = 'I', mp['J'] = 'L', mp['M'] = 'M', mp['O'] = 'O';
    mp['S'] = '2', mp['T'] = 'T', mp['U'] = 'U', mp['V'] = 'V', mp['W'] = 'W', mp['X'] = 'X', mp['Y'] = 'Y', mp['Z'] = '5', mp['0'] = '0';
    mp['1'] = '1', mp['2'] = 'S', mp['3'] = 'E', mp['5'] = 'Z', mp['8'] = '8', mp['L'] = 'J';

    string s;
    int L, R;
    bool mstr, rpal;
    while(cin >> s){
        L = 0, R = s.length()-1;
        mstr = rpal = true;
        while(L < R){
            if(s[L] != s[R]){
                rpal = false;
            }
            if(s[L] != mp[s[R]]){
                mstr = false;
            }
            ++L, --R;
        }
        cout << s << " -- is ";
        if(mstr && rpal){
            cout << "a mirrored palindrome.\n";
        }
        else if(mstr){
            cout << "a mirrored string.\n";
        }
        else if(rpal){
            cout << "a regular palindrome.\n";
        }
        else {
            cout << "not a palindrome.\n";
        }
        cout << "\n";
    }
    return 0;
}