Submission #381530

#	Time	Username	Problem	Language	Result	Execution time	Memory
381530		BlancaHM	Art Exhibition (JOI18_art)	C++14	50 / 100	1095 ms	20716 KiB

art

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
typedef long long int ll;

int N;
vector<pair<ll, ll>> artworks;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> N;
	artworks = vector<pair<ll, ll>>(N);
	for (int i = 0; i < N; i++)
		cin >> artworks[i].first >> artworks[i].second;
	sort(artworks.begin(), artworks.end());
	for (int i = 1; i < N; i++)
		artworks[i].second += artworks[i-1].second;
	ll record = 0, cur;
	for (int i = 0; i < N; i++) {
		for (int j = i; j < N; j++) {
			cur = artworks[j].second;
			if (i > 0)
				cur -= artworks[i-1].second;
			cur += artworks[i].first;
			cur -= artworks[j].first;
			//cout << cur << '\n';
			record = max(record, cur);
		}
	}
	cout << record << '\n';
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50