Submission #537848

#	Time	Username	Problem	Language	Result	Execution time	Memory
537848		tkwiatkowski	Art Exhibition (JOI18_art)	C++17	100 / 100	184 ms	20724 KiB

art

/*
	Zadanie: Art Exhibition
	Autor: Tomasz Kwiatkowski
*/

#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back

using namespace std;
typedef long long ll;

const int MAXN = 1e6 + 7;
const int INF = 1e9 + 7;

int main()
{
	ios_base::sync_with_stdio(0), cin.tie(0);

	int n;
	cin >> n;
	vector<pair<ll, ll>> artworks(n);
	for (auto& [a, b] : artworks)
		cin >> a >> b;

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

	ll maxx = -1e18;
	ll ans = 0;
	ll pref = 0;
	for (auto [a, b] : artworks) {
		maxx = max(a - pref, maxx);
		pref += b;
		ans = max(maxx + pref - a, ans);
	}
	cout << ans << '\n';
	return 0;
}

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