Submission #1071247

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071247		vjudge1	Art Exhibition (JOI18_art)	C++17	10 / 100	5 ms	600 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define lld long double
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(a) a.begin(),a.end()
#define IShowSpeed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
const int N=5e5+10;
const int K=505;
const int mod=1e9+7;
const ll inf=1e18+228;
const int dx[]={-1,0,0,1};
const int dy[]={0,-1,1,0};

struct node {
	ll a,b;
}h[N];

bool cmp(node a, node b){
	if(a.a == b.a) return a.b < b.b;
	return a.a < b.a;
}

int main()
{
	IShowSpeed
	ll n,ans=0;
	cin>>n;
	for(int i=1;i<=n;i++) cin>>h[i].a>>h[i].b;
	sort(h+1,h+n+1,cmp);
	for(int i=1;i<(1 << n);i++)
	{
		ll mx=0,mn=inf,s=0;
		for(int j=0;j<n;j++)
		{
			int b = (i >> j) & 1;
			if(b)
			{
				mn=min(mn,h[j+1].a);
				mx=max(mx,h[j+1].a);
				s+=h[j+1].b;
			}
		}
		ans=max(ans,s-(mx-mn));
	}
	cout<<ans;
}

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