Submission #891884

#	Time	Username	Problem	Language	Result	Execution time	Memory
891884		goodspeed0208	Art Exhibition (JOI18_art)	C++14	50 / 100	1012 ms	24772 KiB

art

#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<map>
#include<utility>
#define int long long
#define INF 1000000000000000000
#define pii pair<long long, long long>
using namespace std;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n;
	cin >> n;
	vector<pii>v(n);
	for(int i = 0 ; i < n ; i++) cin >> v[i].first >> v[i].second;
	sort(v.begin(), v.end());
	vector<int>psum(n);
	psum[0] = v[0].second;
	for (int i = 1 ; i < n ; i++) psum[i] = psum[i-1] + v[i].second;
	int ans = 0;
	for (int i = 0 ; i < n ; i++) {
		//cout << psum[i] << " ";
		for (int j = i ; j < n ; j++) {
			int t;
			if (i == 0) t = psum[j] - (v[j].first - v[i].first);
			else t = (psum[j] - psum[i-1]) - (v[j].first - v[i].first);
			//cout << t << " ";
			ans = max(ans, t);
		}
		//out << "\n";
	}
	cout << ans << "\n";
}

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