Submission #950842

#	Time	Username	Problem	Language	Result	Execution time	Memory
950842		starchan	Art Exhibition (JOI18_art)	C++17	100 / 100	137 ms	21068 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define in pair<int, int>
#define f first
#define s second
#define pb push_back
#define pob pop_back
#define INF (int)1e17
#define MX (int)3e5+5
#define fast() ios_base::sync_with_stdio(false); cin.tie(NULL)
signed main()
{
	fast();
	int n;
	cin >> n;
	vector<in> ab(n+1);
	for(int i = 1; i <= n; i++)
		cin >> ab[i].f >> ab[i].s;
	sort(ab.begin()+1, ab.end());
	ab[0] = {0,0};
	for(int i = 1; i <= n; i++)
		ab[i].s+=ab[i-1].s;
	int ans = -INF;
	int mn = INF;
	for(int i = 1; i <= n; i++)
	{
		mn = min(mn, ab[i-1].s-ab[i].f);
		ans = max(ans, ab[i].s-ab[i].f-mn);
	}
	mn = INF;
	cout << ans << "\n";
	return 0;
}	

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