Submission #302997

#	Time	Username	Problem	Language	Result	Execution time	Memory
302997		ivan24	Carnival Tickets (IOI20_tickets)	C++14	11 / 100	2 ms	768 KiB

tickets

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

using ll = long long int;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
#define F first
#define S second

class Solver{
private:
    ll k,n,m;
    vvi x;
public:
    Solver(ll k,vvi x): k(k),x(x){
        n = x.size(); m = x[0].size();
    }
    ll solve(){
        vi te;
        for (auto i: x){
            te.push_back(i[0]);
        }
        sort(te.begin(),te.end());
        ll res = 0;
        for (ll i = 0; te.size() > i*2; i++){
            res += te[n-i-1]-te[i];
        }

        allocate_tickets(vvi(n,vi{0}));

        return res;
    }
};

long long find_maximum(int k, std::vector<std::vector<int>> x) {
	Solver mySolver(k,x);
	return mySolver.solve();
}

Compilation message (stderr)

tickets.cpp: In member function 'll Solver::solve()':
tickets.cpp:29:34: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   29 |         for (ll i = 0; te.size() > i*2; i++){
      |                        ~~~~~~~~~~^~~~~

• 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