hdu Word Amalgamation（map）

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1113

找单词

 #include <iostream>
 #include <string>
 #include <map>
 #include <algorithm>
 using namespace std;

 map<string, string> str;
 string s, t;

 int main()
 {
     while(cin >> s && s != "XXXXXX")
     {
         t = s;
         sort(s.begin(), s.end());
         str[t] = s;
     }
     while(cin >> s && s != "XXXXXX")
     {
         bool flag = ;
         t = s;
         sort(s.begin(), s.end());
         for(map<string, string>::iterator it=str.begin(); it!=str.end(); ++it)
             if(it->second == s)
             {
                 cout << it->first << endl;
                 flag = ;
             }
         if(flag == )
             cout << "NOT A VALID WORD\n";
         cout << "******\n";

     }
 }