Submission #46274

#	Time	Username	Problem	Language	Result	Execution time	Memory
46274		fredbr	Art Exhibition (JOI18_art)	C++17	50 / 100	32 ms	4800 KiB

art

#include <bits/stdc++.h>

#define ff first
#define ss second

using namespace std;

typedef long long ll;
typedef pair<ll, ll> ii;

const int maxn = 5010;
const ll inf = 0x3f3f3f3f3f3f3f;

ll p[maxn];
ii v[maxn];

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

	for (int i = 1; i <= n; i++) cin >> v[i].ff >> v[i].ss;

	sort(v+1, v+1+n);

	for (int i = 1; i <= n; i++) p[i] = p[i-1] + v[i].ss;

	ll ans = -inf;

	for (int i = 1; i <= n; i++) {

		for (int j = i; j <= n; j++) {

			ans = max(ans, p[j]-p[i-1]-v[j].ff+v[i].ff);
		}
	}

	cout << ans << "\n";
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50