Submission #127333

#	Time	Username	Problem	Language	Result	Execution time	Memory
127333		shuvi_dola	Art Exhibition (JOI18_art)	C++14	100 / 100	254 ms	17528 KiB

art

#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second

using namespace std;
const int N = 5e5+3;
int c[N], best[N], n, k;
pair <int,int> pic[N];
signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>pic[i].fi>>pic[i].se;
	}

	sort(pic+1,pic+1+n);
	c[1] = pic[1].se;
	for(int i=2;i<=n;i++)
	{
		c[i] = pic[i].se - (pic[i].fi - pic[i-1].fi);
	}

	int ans = 0;
	for(int i=1;i<=n;i++)
	{
		best[i] = max(best[i-1] + c[i], pic[i].se);
		ans = max(ans, best[i]);
	}
	cout<<ans;
}

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