Submission #941928

#	Time	Username	Problem	Language	Result	Execution time	Memory
941928		4QT0R	Art Exhibition (JOI18_art)	C++17	100 / 100	137 ms	30548 KiB

art

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

pair<ll,ll> wej[500003];
ll sum_pref[500003];
ll next_min[500003];
ll dp[500003][2];

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	ll n,mx=0;
	cin >> n;
	for (ll i = 1; i<=n; i++){
		cin >> wej[i].first >> wej[i].second;
	}
	sort(wej+1,wej+n+1);
	for (ll i = 1; i<=n; i++){
		dp[i][0]=wej[i].first+wej[i].second;
		dp[i][1]=max(dp[i-1][0],dp[i-1][1])+wej[i].second;
		mx=max({mx,dp[i][0]-wej[i].first,dp[i][1]-wej[i].first});
	}
	cout << mx << '\n';
}

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