hihocoder编程练习赛52-1 字符串排序

思路：

将字符串按照新的顺序映射之后再排序。

实现：

 1 #include <bits/stdc++.h>
 2 using namespace std;
 3 
 4 int main()
 5 {
 6     int n;
 7     string s, t;
 8     cin >> n >> t;
 9     map<char, int> mp;
10     for (int i = 0; i < t.length(); i++) mp[t[i]] = i;
11     vector<string> str;
12     for (int i = 0; i < n; i++)
13     {
14         cin >> s;
15         str.push_back(s);        
16     }
17     vector<pair<string, int>> vs;
18     for (int i = 0; i < n; i++)
19     {
20         int l = str[i].length();
21         string res = "";
22         for (int j = 0; j < l; j++)
23         {
24             res += (char)(mp[str[i][j]] + 'a');
25         }
26         vs.push_back(make_pair(res, i));
27     }
28     sort(vs.begin(), vs.end());
29     for (int i = 0; i < vs.size(); i++) cout << str[vs[i].second] << endl;
30     return 0;
31 }