Submission #91340

#	Time	Username	Problem	Language	Result	Execution time	Memory
91340		aminra	Art Exhibition (JOI18_art)	C++14	100 / 100	215 ms	221016 KiB

art

//tavakol bar khoda
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const int MAXN = (int)5e5 + 7;
const int MOD = (int)1e9 + 7;
const int infint = (int)1e8 + 3;
const ll inf = (ll)1e18;
ll n, part[MAXN];
pair<ll, ll> P[MAXN];
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cin >> n;
	for (int i = 0; i < n; i++)	
		cin >> P[i].first >> P[i].second;
	sort(P, P + n);
	part[0] = P[0].second;
	for (int i = 1; i < n; i++)
		part[i] = part[i - 1] + P[i].second;


	ll ans = 0, mn = 0;
	for (int i = 0; i < n; i++)
	{
		if(i == 0)
			mn = -P[0].first;
		else
			mn = min(mn, part[i - 1] - P[i].first);
		ans = max(ans, part[i] - P[i].first - mn);
	}
	cout << ans;
}

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