Submission #968409

#	Time	Username	Problem	Language	Result	Execution time	Memory
968409		elotelo966	Art Exhibition (JOI18_art)	C++17	50 / 100	1064 ms	24748 KiB

art

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define OYY 100000000000005
#define mod 1000000007
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR for(int i=1;i<=n;i++)
#define mid (start+end)/2
#define lim 300005
#define fi first
#define se second

vector<pair<int,int>> v;

int32_t main(){
	faster
	int n;cin>>n;
	FOR{
		int x,y;cin>>x>>y;
		v.push_back({x,y});
	}
	
	sort(v.begin(),v.end());
	
	int cev=0;
	
	vector<int> pre(n+1,0);
	
	FOR{
		pre[i]=pre[i-1]+v[i-1].se;
	}
	
	FOR{
		for(int j=i;j<=n;j++){
			cev=max(cev,pre[j]-pre[i-1]-(v[j-1].fi-v[i-1].fi));
		}
	}
	
	cout<<cev<<'\n';
	
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50