UVa 10115 Automatic Editing

UVa 10115 Automatic Editing

STL还是需要去熟悉啊～现在不是OI了！但是那么多的函数怎么记呐！苦恼。
以下是我的代码：

#include < iostream >
#include < string >
#include < cstdio >
using   namespace  std;

int  main()
{
     /*
    freopen("autoedit.in","r",stdin);
    freopen("autoedit.out","w",stdout);
    // */

     int  n;
     while (cin >> n  &&  n)
    {
        getchar();
         string  origin[ 17 ],replace[ 17 ];
         for ( int  i = 1 ;i <= n;i ++ )
        {
            getline(cin,origin[i]);
            getline(cin,replace[i]);
        }
         string  text;
        getline(cin,text);

         for ( int  i = 1 ;i <= n;i ++ )
        {
             int  find_result;
             while ((find_result = text.find(origin[i])) != string ::npos)
            {
                text.erase(text.begin() + find_result,text.begin() + find_result + origin[i].size());
                text.insert(find_result,replace[i]);
            }
        }

        cout << text << endl;
    }

     return   0 ;
}