Submission #461184

#	Time	Username	Problem	Language	Result	Execution time	Memory
461184		hhhhaura	Art Exhibition (JOI18_art)	C++14	100 / 100	231 ms	9420 KiB

art

#define wiwihorz
#pragma GCC optimize("Ofast")
#pragma loop-opt(on)
#include <bits/stdc++.h>

#define rep(i, a, b) for(int i = a; i <= b; i ++)
#define rrep(i, a, b) for(int i = b; i >= a; i--)
#define all(x) x.begin(), x.end()

#define INF 9000000000000000000
#define MOD 1000000007
#define eps (1e-9)

using namespace std;

#define int long long int
#define pii pair<int, int>

namespace solver {
	int n;
	vector<pii> a;
	void init_(int _n) {
		n = _n;
		a.assign(n + 1, {0, 0});
	}
	int solve() {
		int cur = 0, mn = INF, ans = 0;
		sort(a.begin() + 1, a.end());
		rep(i, 1, n) {
			mn = min(mn, cur - a[i].first);
			cur += a[i].second;
			ans = max(ans, cur - a[i].first - mn);
		}
		return ans;
	}
};
using namespace solver;
signed main() {
	ios::sync_with_stdio(false), cin.tie(0);
	int n; cin >> n;
	init_(n);
	rep(i, 1, n) cin >> a[i].first >> a[i].second;
	cout << solve() << "\n";
	return 0;
}

Compilation message (stderr)

art.cpp:3: warning: ignoring '#pragma loop ' [-Wunknown-pragmas]
    3 | #pragma loop-opt(on)
      |

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