Submission #754796

#	Time	Username	Problem	Language	Result	Execution time	Memory
754796		ZeroCool	Art Exhibition (JOI18_art)	C++14	100 / 100	198 ms	24768 KiB

art

//* --- ©ZeroCoolCorp --- *//
#include <bits/stdc++.h>
#define ll long long
  
using namespace std;
  
#define mxn int(1e5 + 5)
#define inf 1e9
#define log 19

#define int ll
 

 //jiojkljljkjlk
 
void solve(){   
	int n;
    cin>>n;
    pair<int,int> A[n];
    int dp[n];
    for(int i = 0;i<n;i++){
        cin>>A[i].first>>A[i].second;
        dp[i] = 0;
    }

    sort(A,A+n);

    dp[0] = A[0].second;
    int mx = dp[0] + A[0].first;
    int ans = -1;
    for(int i = 1;i<n;i++){
        dp[i] = max(A[i].second, mx + A[i].second - A[i].first);
        mx = max(mx,dp[i] + A[i].first);
        ans = max(ans,dp[i]);
    }
    cout<<ans<<endl;
    
    
}
  
int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
  
    int t = 1;
    //cin>>t;
    while(t--)solve();
     
     
 
     
}

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