제출 #707031

#제출 시각아이디문제언어결과실행 시간메모리
707031Dan4LifeArt Exhibition (JOI18_art)C++17
100 / 100
168 ms8164 KiB
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define int long long
#define sz(a) (int)a.size()
const int mxN = (int)5e5+1;
int n, m, ans, sum, mx;
pair<int,int> v[mxN];

int32_t main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	for(int i = 0; i < n; i++) 
		cin >> v[i].fi >> v[i].se, ans = max(ans, v[i].se);
	sort(v,v+n);
	for(int i = 0; i < n; i++){
		sum+=v[i].se;
		ans = max(ans, sum-v[i].fi+mx);
		mx = max(mx,v[i].se+v[i].fi-sum);
	}
	cout << ans;
}
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