兄弟单词

 1 #include<iostream>
 2 #include<string>
 3 #include<vector>
 4 #include<algorithm>
 5 using namespace std;
 6 bool isbrother(string str1, string str2)
 7 {
 8     if (str1.size() == str2.size())
 9     {
10         for (int i = 0; i<str1.size(); i++)
11         {
12             int n;
13             n = str2.find(str1[i]);
14             if (n == -1)
15             {
16                 return false;
17             }
18             else
19             {
20                 str2[n] = ‘0‘;
21             }
22 
23 
24         }
25         return true;
26     }
27     return false;
28 }
29 int main()
30 {
31     int n;
32     while (cin >> n)
33     {
34         vector<string> strings;
35         while (n)
36         {
37             string stemp;
38             cin >> stemp;
39             strings.push_back(stemp);
40             n--;
41         }
42         string f_string;
43         cin >> f_string;
44         int m;
45         cin >> m;
46         cin.clear();
47         vector<string>b_strings;
48         for (int i = 0; i<strings.size(); i++)
49         {
50             if (strings[i] == f_string)
51             {
52                 continue;
53             }
54             else
55             {
56                 if (isbrother(f_string, strings[i]))
57                 {
58                     b_strings.push_back(strings[i]);
59                 }
60             }
61         }
62         sort(b_strings.begin(), b_strings.end());
63         cout << b_strings.size() << endl;
           if(m<=b_strings.size())
                cout<<b_strings[m-1]<<endl;
64 
65 
66     }
67 }