UVA-10115 Automatic Editing

原题链接：

https://vjudge.net/problem/UVA-10115#author=Luke

AC代码：

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    while (cin >> n && n != 0)
    {
        string s1[20];
        string s2[20];
        getchar();
        for (int i = 0; i < n; i++)
        {
            getline(cin, s1[i]);
            getline(cin, s2[i]);
        }
        string str;
        getline(cin, str);
        for (int i = 0; i < n; i++)
        {
            int index = 0;
            index = str.find(s1[i]);
            while (index != str.npos)
            {
                str = str.replace(index, s1[i].length(), s2[i]);
                index = str.find(s1[i]);
            }
        }
        cout << str << endl;
    }
    return 0;
}