Submission #1071723

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071723		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	161 ms	24912 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define lld long double
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(a) a.begin(),a.end()
#define IShowSpeed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
const int N=5e5+10;
const int K=505;
const int mod=1e9+7;
const ll inf=1e18+228;
const int dx[]={-1,0,0,1};
const int dy[]={0,-1,1,0};
ll sum[N],n,ans=0,mx=0;
pair<ll,ll>h[N];
int main()
{
	IShowSpeed
	cin>>n;
	for(int i=1;i<=n;i++) cin>>h[i].F>>h[i].S;
	sort(h+1,h+n+1);
	for(int i=1;i<=n;i++) sum[i]=sum[i-1]+h[i].S;
	for(int i=1;i<=n;i++)
	{
		mx=max(mx,h[i].F-sum[i-1]);
		ans=max(ans,sum[i]-h[i].F+mx);
	}
	cout<<ans;
}
/*
   0  14
1  5  11
4  6  12
4  8  13
5  11 12
9  12 12
10 15 15

*/

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