Submission #913885

#	Time	Username	Problem	Language	Result	Execution time	Memory
913885		nika7878	Art Exhibition (JOI18_art)	C++14	100 / 100	467 ms	8280 KiB

art

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
#define int long long
signed main() {
	int n;
	cin >> n;
	vector<pair<int, int>> a(n);
	for(int i=0; i<n; i++)
	{
		cin >> a[i].f >> a[i].s;
	}
	sort(a.begin(), a.end());
	for(int i=1; i<n; i++)
	{
		a[i].s=a[i-1].s+a[i].s;
	}
	int ans=-1e18, x=-1e18;
	for(int i=0; i<n; i++)
	{
		if (i == 0) x = max(x, a[i].f);
		else x=max(x, a[i].f-a[i-1].s);
		ans=max(ans, a[i].s-a[i].f+x);
	}
	cout << ans << endl;
 
}

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