Submission #299786

#	Time	Username	Problem	Language	Result	Execution time	Memory
299786		NicolaAbusaad2014	Art Exhibition (JOI18_art)	C++14	100 / 100	215 ms	24856 KiB

art

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    long long n,x,z,ans=0,a,b,mx=0;
    cin>>n;
    a=0;
    b=n-1;
    pair<long long,long long>arr[n];
    for(long i=0;i<n;i++){
    cin>>arr[i].first>>arr[i].second;
    ans+=arr[i].second;
    mx=max(mx,arr[i].second);
    }
    sort(arr,arr+n);
    ans-=(arr[n-1].first-arr[0].first);
    x=0;
    z=ans;
    long long add[n];
    add[0]=0;
    for(long i=1;i<n;i++){
    x-=arr[i-1].second;
    x+=arr[i].first-arr[i-1].first;
    add[i]=max(add[i-1],x);
    }
    a=0;
    x=0;
    for(long i=n-2;i>=0;i--){
    x-=arr[i+1].second;
    x+=arr[i+1].first-arr[i].first;
    a=max(a,x);
    ans=max(ans,z+add[i]+a);
    }
    ans=max(ans,mx);
    cout<<ans<<endl;
    return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:9:29: warning: variable 'b' set but not used [-Wunused-but-set-variable]
    9 |     long long n,x,z,ans=0,a,b,mx=0;
      |                             ^

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