Submission #305382

#	Time	Username	Problem	Language	Result	Execution time	Memory
305382		JooDdae	Carnival Tickets (IOI20_tickets)	C++17	Compilation error	0 ms	0 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<int> v;
    for(int i=0;i<n;i++) v.push_back(x[i][0]);
    sort(v.begin(), v.end());
    allocate_tickets(v);

    ll ans = 0;
    for(int i=0;i<n/2;i++) ans -= v[i];
    for(int i=n/2;i<n;i++) ans += v[i];

    return ans;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:13:22: error: could not convert 'v' from 'vector<int>' to 'vector<std::vector<int>>'
   13 |     allocate_tickets(v);
      |                      ^
      |                      |
      |                      vector<int>
tickets.cpp:8:9: warning: unused variable 'm' [-Wunused-variable]
    8 |     int m = x[0].size();
      |         ^