제출 #604007

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
604007		Tigryonochekk	카니발 티켓 (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;
}

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• Subtask 3: 0 / 14
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