Submission #1051621

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051621		Gromp15	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	0 ms	348 KiB

tickets

#include <bits/stdc++.h>
#define ll long long
#define all(x) x.begin(), x.end()
#include "tickets.h"

using namespace std;
const ll INF = 1e18;

long long find_maximum(int k, std::vector<std::vector<int>> a) {
	int n = a.size();
	int m = a[0].size();
	if (m == 1) {
		vector<int> x(n);
		for (int i = 0; i < n; i++) x[i] = a[i][0];
		sort(all(x));
		ll ans = 0;
		for (int i = 0; i < n / 2; i++) ans -= x[i];
		for (int i = n / 2; i < n; i++) ans += x[i];
		return ans;
	}
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^

• Subtask 1: 0 / 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