Submission #604007

#	Time	Username	Problem	Language	Result	Execution time	Memory
604007		Tigryonochekk	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	1 ms	212 KiB

tickets

#include <iostream>
#include <algorithm>
#include "tickets.h"
#include <vector>
#define ll long long
using namespace std;
const ll inf = 1e18 + 69;
#define pii pair<int, int>
vector<vector<int>> answer;
ll ans;

long long find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	answer.resize(n);
	for (int i = 0; i < n; i++) {
		answer[i].resize(m, -1);
	}
	if (k == 1) {
		vector<pii> d(n);
		for (int i = 0; i < n; i++) {
			d[i] = pii(x[i][m - 1] - x[i][0], i);
			ans += x[i][m - 1];
		}
		sort(d.begin(), d.end());
		for (int i = 0; i < n / 2; i++) {
			int ind = d[i].second;
			answer[ind][0] = 0;
			ans -= x[ind][m - 1];
			ans -= x[ind][0];
		}
		for (int i = n / 2; i < n; i++) {
			answer[d[i].second][m - 1] = 0;
		}
	}
	allocate_tickets(answer);
	return ans;
}

• 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