題目鏈接：https://pintia.cn/problem-sets/994805260223102976/problems/994805262622244864

題解：

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 
 4 int main() {
 5     int n, i;
 6     cin >> n;
 7     vector<int>ans;
 8     getchar();
 9     string *str = new string[n];
10     for (int i = 0; i < n; i++)
 
11         getline(cin, str[i]);
12     for (int i = 0; i < n; i++) {
13         int j = 0;
14         for (; j < str[i].size(); j++) {
15             if (str[i][j] == ‘T‘) break;
16         }
17         switch (str[i][j - 2]) {
18         case ‘A‘:
19             ans.push_back(1);
20             break
 
;
21         case ‘B‘:
22             ans.push_back(2);
23             break;
24         case ‘C‘:
25             ans.push_back(3);
26             break;
27         default:
28             ans.push_back(4);
29             break;
30         }
31     }
32     vector<int>::iterator it = ans.begin();
 
33     for (; it != ans.end(); it++)
34         cout << *it;
35     return 0;
36 }

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