hdu/hdoj 1075 What Are You Talking About

stl 中的map容器，确立了一对一的关系；

#include <iostream>
#include <string>
#include <map>
using namespace std;
string words,temp;
map < string , string > mp;
int main ()
{
    cin >> words;
    while ( cin >> words, words != "END" )
    {
           cin >> temp;
           mp[ temp ] = words;
    }
    cin >> words;
    cin.get();
    while ( getline ( cin, words ) && words != "END" )
    {
           string out = "";
           int len = words.size();
           for ( int i = 0; i != len; ++ i )
           {
                if ( isalpha ( words[i] ) )
                {
                     out += words[i];
                } 
                else 
                {
                     if ( mp[out] == "" )
                          cout << out; 
                     else
                          cout << mp[out];
                     cout << words[i];
                     out = ""; 
                }
           }
           cout << endl;
    }
    return 0;
}