Submission #1158738

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158738		pinbu	Art Exhibition (JOI18_art)	C++20	100 / 100	534 ms	31748 KiB

art

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

const int N = 500005;
const long long oo = 1e18;

int n;
map<long long, long long> v;

signed main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);
	
	cin >> n;
	for (int i = 1; i <= n; i++) {
		long long a, b; cin >> a >> b;
		v[a] += b;
	}
	long long prf = 0, mx = -oo, ans = -oo;
	for (auto x: v) {
		mx = max(mx, -prf + x.first);
		prf += x.second;
		ans = max(ans, prf + mx - x.first);
	}
	cout << ans;
	
	return 0;
}

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