Submission #1212362

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212362		nlsosad	Art Exhibition (JOI18_art)	C++20	100 / 100	201 ms	35744 KiB

art

#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;
pair<int, int> a[500001];
int dp[500002];
signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n;
	cin >> n;
	for (int i = 1;i<=n;++i){
		cin >> a[i].fi >> a[i].se;
	}
	sort(a+1, a+n+1);
	dp[0] = 0;
	for (int i = 1;i<=n;++i){
		dp[i] = dp[i-1] + a[i].se;
	}
	int res = 0;
	set<int> se;
	for (int i = 1;i<=n;++i){
		se.insert(a[i].fi - dp[i-1]);
		int s = dp[i] - a[i].fi + a[1].fi;
		auto it = prev(se.end());
		res = max(res, s - a[1].fi + *it);
	}
	cout << res;
}

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