Submission #305390

#	Time	Username	Problem	Language	Result	Execution time	Memory
305390		JooDdae	Carnival Tickets (IOI20_tickets)	C++17	11 / 100	2 ms	768 KiB

tickets

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

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

    vector<vector<int>> v(n, vector<int>(m));
    allocate_tickets(v);

    vector<int> v2;
    for(int i=0;i<n;i++) v2.push_back(x[i][0]);
    sort(v2.begin(), v2.end());
    
    ll ans = 0;
    for(int i=0;i<n/2;i++) ans -= v2[i];
    for(int i=n/2;i<n;i++) ans += v2[i];

    return ans;
}

• 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