Submission #701299

#	Time	Username	Problem	Language	Result	Execution time	Memory
701299		NourWael	Art Exhibition (JOI18_art)	C++14	50 / 100	745 ms	262144 KiB

art

#include <iostream>
#include <bits/stdc++.h>
typedef long long ll;

using namespace std;


ll dp[5001][5001];
int n;
vector<pair<ll,ll>>v;
ll joi(int i , int last)
{
    if(i==n)
        return 0;

     ll m=0;
     int j=i;

     if(last==-1)
     {
         m=joi(i+1,j)+v[i].second;
     }
     else
     {    if(dp[i][last]!=-1e17)
          return dp[i][last];
          else m=joi(i+1,i)+v[i].second-(v[i].first-v[last].first);
     }

     m=max(m,joi(i+1,last));
     if(last!=-1) dp[i][last]=m;

     return m;

}
int main()
{
    cin>>n;
    v.resize(n);

    for(int i=0;i<5001;i++)
    {
        for(int j=0;j<5001;j++)
        {
            dp[i][j]=-1e17;
        }

    }

    for(int i=0;i<n;i++)
    {
       cin>>v[i].first>>v[i].second;
    }
    sort(v.begin(),v.end());

   cout<<joi(0,-1);


    return 0;
}

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