Submission #1291765

#	Time	Username	Problem	Language	Result	Execution time	Memory
1291765		Sofiatpc	Carnival Tickets (IOI20_tickets)	C++20	11 / 100	2 ms	580 KiB

tickets

#include "tickets.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1505;
int mn[MAXN], mx[MAXN];
long long dp[MAXN][MAXN];

long long find_maximum(int k, vector<vector<int>> x) {
	int n = x.size(), m = x[0].size();

	vector<vector<int>> ans(n);
	vector<vector<int>> v(m);
	for (int i = 0; i < n; i++) {
		ans[i].resize(m);
		for (int j = 0; j < m; j++){
			if(i < n/2)ans[i][j] = j;
			else ans[i][j] = m-j-1;
			v[ ans[i][j] ].push_back(x[i][j]);
		}
	}

	long long resp = 0;
	for(int j = 0; j < m; j++){
		sort(v[j].begin(),v[j].end());
		for(int i = 0; i < n/2; i++)resp -= v[j][i];
		for(int i = n/2; i < n; i++)resp += v[j][i];
	}

	allocate_tickets(ans);
	return resp;
}

• Subtask 1: 11 / 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