Submission #947988

#	Time	Username	Problem	Language	Result	Execution time	Memory
947988		PM1	Art Exhibition (JOI18_art)	C++17	100 / 100	492 ms	44608 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fr first
#define sc second
const int mxn=5e5+5;
int n;
pair<ll ,ll >a[mxn];
set<ll >s;
ll lazy=0;
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i].fr>>a[i].sc;
	}
	sort(a+1,a+n+1);
	s.insert(a[1].sc);
	ll ans=a[1].sc;
	for(int i=2;i<=n;i++){
		lazy+=a[i].sc;
		lazy-=a[i].fr-a[i-1].fr;
		s.insert(a[i].sc-lazy);
		ll x=*s.rbegin();
		ans=max(ans,x+lazy);
	}
	cout<<ans;
	return 0;
}

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