Submission #315801

#	Time	Username	Problem	Language	Result	Execution time	Memory
315801		nandonathaniel	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	384 KiB

art

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

pair<long long,long long> arr[500005];

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n;
	cin >> n;
	for(int i=1;i<=n;i++){
		cin >> arr[i].first >> arr[i].second;
	}
	sort(arr+1,arr+n+1);
	long long ans=arr[1].second,ret=arr[1].second;
	for(int i=2;i<=n;i++){
		ret+=(arr[i].second-arr[i].first+arr[i-1].first);
		ans=max(ans,ret);
		if(ret<0){
			ret=arr[i].second;
		}
	}
	cout << ans << '\n';
	return 0;
}

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