Submission #307457

#	Time	Username	Problem	Language	Result	Execution time	Memory
307457		nicolaalexandra	Carnival Tickets (IOI20_tickets)	C++14	11 / 100	2 ms	800 KiB

tickets

#include <bits/stdc++.h>
#include "tickets.h"
#define DIM 2000
using namespace std;

int n,m;
int f[DIM];


long long find_maximum (int k, vector<vector<int> > x){
    n = x.size(), m = x[0].size();
    int i;
    vector <pair<int,int> > v;
    vector <vector<int> > ans;
    ans.resize(n);
    for (i=0;i<n;i++)
        ans[i].resize(m,-1);


    for (i=0;i<n;i++)
        v.push_back(make_pair(x[i][0],i));
    sort (v.begin(),v.end());

    long long sum = 0, mid;
    for (i=0;i<n/2;i++){
        sum -= v[i].first;
        f[v[i].second] = 1;
        ans[v[i].second][0] = 0;
        mid = v[i].first;
    }

    for (i=0;i<n;i++)
        if (!f[i]){
            sum += x[i].back();
            ans[i][m-1] = 0;
        }

    allocate_tickets(ans);

    return sum;

}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:24:24: warning: variable 'mid' set but not used [-Wunused-but-set-variable]
   24 |     long long sum = 0, mid;
      |                        ^~~

• 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