Submission #851693

#	Time	Username	Problem	Language	Result	Execution time	Memory
851693		stdfloat	Art Exhibition (JOI18_art)	C++17	100 / 100	281 ms	48468 KiB

art

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

#define ll long long

int main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int n;
	cin >> n;
	
	pair<ll, ll> p[n + 1];
	for (int i = 1; i <= n; i++) {
		cin >> p[i].first >> p[i].second;
	}

	sort(p + 1, p + n + 1);

	vector<ll> ps(n + 1);
	for (int i = 1; i <= n; i++) {
		ps[i] = ps[i - 1] + p[i].second;
	}

	multiset<ll> s;
	for (int i = 1; i <= n; i++) {
		s.insert(ps[i] - p[i].first);
	}

	ll ans = 0;
	for (int i = 1; i <= n; i++) {
		if (i != 1) {
			s.erase(s.find(ps[i - 1] - p[i - 1].first));
		}

		ans = max(ans, *s.rbegin() - ps[i - 1] + p[i].first);
	}

	cout << ans;
}

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