PTA 乙级 1055 集体照 (25分) C++

 

 好难啊,困了

 1 #include<iostream>
 2 #include<vector>
 3 #include<algorithm>
 4 
 5 using namespace std;
 6 
 7 int main()
 8 {
 9     int n, k, m, h;
10     cin >> n >> k;
11     m = n / k;
12     vector<pair<string,int>>student(n);
13     for (int i = 0; i < n; i++)
14         cin>>student[i].first>>student[i].second;
15     sort(student.begin(), student.end(), [](pair<string,int>& a, pair<string, int>& b) {
16         return a.second != b.second ? a.second < b.second : a.first > b.first;});
17     bool flag = true;
18     for (int i = (k - 1) * m; i >= 0; i -= m){
19         int num = m;
20         if (flag){
21             num = n - i;
22             flag = false;
23         }
24         int s = num % 2 ? 2 : 1;
25         int e = num % 2 ? 1 : 2;
26         for (int j = s; j < num; j += 2)
27             cout << student[i + j - 1].first << " ";
28         for (int j = num; j >= e; j -= 2)
29             cout << student[i + j - 1].first<<(j > e?" ":"");
30         cout << endl;
31     }
32     return 0;
33 }

 

 

posted @ 2020-08-23 02:51  上帝的绵羊  阅读(229)  评论(0)  编辑  收藏  举报