HDU 1075 What Are You Talking About

还是map

#include<bits/stdc++.h>using namespace std;map<string,string>m;int main(){    string s1,s2,s;    char c;    cin>>s1;    while(cin>>s1)    {        if(s1=="END")            break;        cin>>s2;        m[s2]=s1;    }    cin>>s1;    scanf("\n");    while(1)    {        scanf("%c",&c);        if(c<='z'&&c>='a')            s+=c;        else if(c=='\n')            printf("\n");        else if(c=='E')            break;        else        {            if(m[s]=="")                cout<<s;            else                cout<<m[s];            s="";            printf("%c",c);        }    }    return 0;}