Submission #300756

#	Time	Username	Problem	Language	Result	Execution time	Memory
300756		IgorI	Carnival Tickets (IOI20_tickets)	C++17	Compilation error	0 ms	0 KiB

tickets

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

using namespace std;

#define forn(i, n) for (int (i) = 0; (i) != (n); (i)++)
#define all(x) (x).begin(), (x).end()

long long find_maximim(int k, std::vector<std::vector<int> > x)
{
    int n = x.size(), m = x[0].size();
    if (m == 1)
    {
        vector<long long> s;
        for (int i = 0; i < n; i++) s.push_back(x[i][0]);
        sort(all(s));
        long long si = 0;
        for (int i = 0; i < n / 2; i++) si += s[i + n / 2] - s[i];
        allocate_tickets(vector<vector<int> >(n, vector<int>(m)));
        return si;
    }
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximim(int, std::vector<std::vector<int> >)':
tickets.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type]
   22 | }
      | ^
/tmp/cc9CE5We.o: In function `main':
grader.cpp:(.text.startup+0x3b2): undefined reference to `find_maximum(int, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status