HDU 1075 - What Are You Talking About

 1 #include <iostream>
 2 #include <string>
 3 #include <map>
 4 using namespace std;
 5 map<string,string> mp;
 6 string s,s2;
 7 char c;
 8 int cnt;
 9 int main()
10 {
11     cnt=0;
12     while(cin>>s)
13     {
14         if(s=="START") continue;
15         if(s=="END") break;
16         cin>>s2;
17         mp[s2]=s;
18     }
19     cin>>s;
20     s.clear();
21     scanf("%c",&c);
22     while((c=getchar())!=EOF)
23     {
24         if(isalpha(c))
25         {
26             s+=c;
27         }
28         else {
29             if(s=="END") break;
30             if(mp.find(s)!=mp.end())
31             {
32                 cout<<mp[s];
33                 s.clear();
34             } else{
35                 cout<<s;
36                 s.clear();
37             }
38             cout<<c;
39         }
40     }
41 }