제출 #272103

#제출 시각아이디문제언어결과실행 시간메모리
272103MKutayBozkurtArt Exhibition (JOI18_art)C++14
100 / 100
228 ms8224 KiB
#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	vector<pair<long long, int>> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i].first >> a[i].second;
	}
	sort(a.begin(), a.end());
	long long sum = 0, ans = 0, mx = -1e18;
	for (int i = 0; i < n; i++) {
		mx = max(mx, a[i].first - sum);
		sum += a[i].second;
		ans = max(ans, sum - a[i].first + mx);
	}
	cout << ans << '\n';
	return 0;
}
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