Submission #928516

#	Time	Username	Problem	Language	Result	Execution time	Memory
928516		ting39	Art Exhibition (JOI18_art)	C++17	100 / 100	412 ms	21060 KiB

art

#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define F first
#define S second
using namespace std;
signed main(){
	int n;
	cin>>n;
	vector<pii> v(n);
	for(auto &i:v) cin>>i.F>>i.S;
	sort(v.begin(),v.end(),[](auto i,auto j){
		return i.F<j.F;
	});
	int ans=0;
	int dif=0,mxdif=0,tmp=v[0].S;
	for(int i=1;i<n;i++){
		dif+=v[i].F-v[i-1].F;
		dif-=v[i-1].S;
		mxdif=max(mxdif,dif);
		tmp+=v[i].S-(v[i].F-v[i-1].F);
		ans=max(ans,tmp+mxdif);
	}
	cout<<ans<<endl;
}

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