Submission #1229817

#	Time	Username	Problem	Language	Result	Execution time	Memory
1229817		xxducdat	Art Exhibition (JOI18_art)	C++20	100 / 100	362 ms	12092 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define int long long

const long long maxN=5*1e5+77;
int b[maxN];
signed main(){
	int n;
	cin>>n;
	vector< pair< int , int > > a(n);
	for(int i=0;i<n;i++){
		cin>>a[i].first>>a[i].second;
	}
	sort(a.begin(),a.end());
	int res=-1e18,ans=-1e18;
	for(int i=0;i<n;i++){
			b[i]=b[i-1]+a[i].second;
			res=max(res,a[i].first-b[i-1]);
			ans=max(ans,res-a[i].first+b[i]);
	    }
	cout<<ans;
	return 0;
}

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