Submission #1198004

#	Time	Username	Problem	Language	Result	Execution time	Memory
1198004		HappyCapybara	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	0 ms	328 KiB

tickets

#include "tickets.h"
#include<bits/stdc++.h>
using namespace std;

#define ll long long

ll find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	priority_queue<pair<int,int>> pq;
	for (int i=0; i<n; i++) pq.push({x[i][m-1]-x[i][0], i});
	vector<vector<int>> ans(n, vector<int>(m, -1));
	ll res = 0;
	for (int i=0; i<n/2; i++){
		int cur = pq.top().second;
		pq.pop();
		res += x[cur][m-1];
		ans[cur][m-1] = 0;
	}
	for (int i=0; i<n/2; i++){
		int cur = pq.top().second;
		pq.pop();
		res -= x[cur][0];
		ans[cur][0] = 0;
	}
	allocate_tickets(ans);
	return res;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10