Submission #948737

#	Time	Username	Problem	Language	Result	Execution time	Memory
948737		phoenix0423	Art Exhibition (JOI18_art)	C++17	100 / 100	153 ms	20824 KiB

art

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define int long long
#define lowbit(x) x&-x
const int maxn = 2e5 + 5;

signed main(void){
	fastio;
	int n;
	cin>>n;
	vector<pll> a(n);
	for(int i = 0; i < n; i++) cin>>a[i].f>>a[i].s;
	sort(a.begin(), a.end());
	int mn = 0, ttl = 0, ans = 0;
	for(int i = 0; i < n; i++){
		mn = min(mn, ttl - a[i].f);
		ttl += a[i].s;
		ans = max(ans, ttl - a[i].f - mn);
	}	
	cout<<ans<<"\n";
}

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