Submission #1203762

#	Time	Username	Problem	Language	Result	Execution time	Memory
1203762		chawinkn	Art Exhibition (JOI18_art)	C++20	100 / 100	116 ms	12112 KiB

art

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

#define f first
#define s second
#define ll long long

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	int n;
	cin >> n;
	vector<pair<ll,ll>> a(n);
	for (auto& [A,B] : a)
		cin >> A >> B;
	sort(a.begin(), a.end());
	vector<ll> qs(n+1);
	for (int i = 1; i <= n; i++)
		qs[i] = qs[i-1]+a[i-1].s;
	ll mx=0, ans=0;
	for (int i = 1; i <= n; i++)
		mx = max(mx, -qs[i-1]+a[i-1].f), ans = max(ans, qs[i]-a[i-1].f+mx);
	cout << ans;
	return 0;
}

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