Submission #1034021

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034021		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	146 ms	25048 KiB

art

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
using pear=pair<ll, ll>;
#define fi first
#define se second
#define nl << '\n'
#define uk << ' '
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
//	freopen(".inp","r",stdin);
//	freopen(".out","w",stdout);
	cin.exceptions(cin.failbit);
	ll n;
	cin >> n;
	ll i;
	vector<pair<ll, ll>> art(n+1);
	for(i=1; i<=n; i++){
		cin >> art[i].fi >> art[i].se;
	}
	vector<ll> pre(n+1);
	sort(art.begin()+1, art.end());
	for(i=1; i<=n; i++){
		pre[i]=pre[i-1]+art[i].se;
	}
	ll maxi=LLONG_MIN, ans=0;
	for(i=1; i<=n; i++){
		maxi=max(maxi, art[i].fi-pre[i-1]);
		ans=max(ans, pre[i]-art[i].fi+maxi);
	}
	cout << ans;
}

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