送分题

写的比较精简 可以看看 不会请留言

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
	vector<pair<string, double>> stu;
	int N, M, K;
	cin >> N >> M >> K;
	int sum = 0;
	for (int i = 0; i < N; i++)
	{
		string s;
		double a;
		cin >> s >> a;
		stu.push_back({s, a});
		if (a >= M && a <= 100)
			sum += 50;
		else if (a >= 60 && a < M)
			sum += 20;
	}
	sort(stu.begin(), stu.end(), [](auto e1, auto e2) { if(e1.second == e2.second)return e1.first < e2.first ;return e1.second > e2.second; });
	int cnt;
	cout << sum << endl;
	//用来做标记
	int t[104] = {0};
	for (int i = 0;i<stu.size(); i++)
	{
		//如果这个成绩曾经没出现过 就更新
		if (t[(int)stu[i].second] == 0)
			cnt = i;
		t[(int)stu[i].second] = 1;
		if (cnt > K)
			break;
		cout << cnt + 1 << ' ' << stu[i].first << ' ' << stu[i].second << endl;
	}
	return 0;
}