제출 #162274

#제출 시각아이디문제언어결과실행 시간메모리
162274kostia244Art Exhibition (JOI18_art)C++14
50 / 100
1018 ms20984 KiB
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using pi = pair<ll, ll>;
using vi = vector<int>;
int main() {
	ll n, ans =0, mn = -1e18, sm = 0;
	cin >> n;
	vector<pi> a;
	a.resize(n);
	for(auto &i : a) cin >> i.first >> i.second;
	sort(all(a));
	for(int i = 0; i < n; i++) {
		mn = max(mn, -sm+a[i].first);
		sm += a[i].second;
		ans = max(ans, sm-a[i].first+mn);
	}
	cout << ans;
	return 0;
}
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