Submission #303218

#	Time	Username	Problem	Language	Result	Execution time	Memory
303218		limabeans	Carnival Tickets (IOI20_tickets)	C++17	11 / 100	2 ms	768 KiB

tickets

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl





using ll = long long;


const int maxn = 1e6 + 5;

ll eval(vector<ll> v, ll x) {
    ll S = 0;
    for (ll a: v) {
	S += abs(a-x);
    }
    return S;
}

long long find_maximum(int k, std::vector<std::vector<int>> x) {
    int n = x.size();
    int m = x[0].size();
    assert(m==1);
    vector<ll> v;
    vector<vector<int>> ans(n, vector<int>(k));
    for (int i=0; i<n; i++) {
	for (int j=0; j<k; j++) {
	    ans[i][j] = 0;
	    v.push_back(x[i][j]);
	}
    }

    sort(v.begin(), v.end());

    allocate_tickets(ans);
    return eval(v, v[(int)v.size() / 2]);
}

• 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