Submission #1123860

#	Time	Username	Problem	Language	Result	Execution time	Memory
1123860		epicci23	Carnival Tickets (IOI20_tickets)	C++17	27 / 100	427 ms	51508 KiB

tickets

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

long long find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
    vector<vector<int>> answer(n,vector<int>(m,-1));
    long long tot = 0;
    for(int i=0;i<n;i++) tot-=x[i][0];
    vector<array<long long,2>> v;
    for(int i=0;i<n;i++) v.push_back({x[i].back()+x[i][0],i});
    sort(v.begin(),v.end());
    reverse(v.begin(),v.end());
    for(int i=0;i<n/2;i++){
      tot += v[i][0];
      answer[v[i][1]][m-1]=0;
    }
    for(int i=n/2;i<n;i++){
      answer[v[i][1]][0]=0;
    }
	allocate_tickets(answer);
	return tot;
}

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