Submission #1071441

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071441		vjudge1	Art Exhibition (JOI18_art)	C++17	50 / 100	1070 ms	22040 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};
ll sum[N];

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<=n;i++) sum[i]=sum[i-1]+h[i].b;
	for(int i=1;i<=n;i++) {
		for(int j=i;j<=n;j++) {
			ans=max(ans,(sum[j]-sum[i-1])-(h[j].a-h[i].a));
		}
	}
	cout<<ans;
}
/*
1 5
4 1
4 2
5 3
9 1
10 3

*/

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