Submission #131242

#	Time	Username	Problem	Language	Result	Execution time	Memory
131242		joylintp	Art Exhibition (JOI18_art)	C++17	100 / 100	273 ms	20984 KiB

art

#include<bits/stdc++.h>
#define int long long

using namespace std;

pair<int, int> arr[500000];

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

    int n;
	cin >> n;
	for (int i = 0; i < n; i++)
		cin >> arr[i].first >> arr[i].second;
	sort(arr, arr + n);

	int ans = 0, sum = 0, lo = 0;
	for (int i = 0; i < n; i++)
    {
		lo = min(lo, sum - arr[i].first);
		sum += arr[i].second;
		ans = max(ans, sum - arr[i].first - lo);
	}
	cout << ans << '\n';

	return 0;
}

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