Submission #85894

#	Time	Username	Problem	Language	Result	Execution time	Memory
85894		igzi	Art Exhibition (JOI18_art)	C++17	100 / 100	784 ms	224372 KiB

art

#include <bits/stdc++.h>
#define maxN 500005

using namespace std;

long long ans=0,n,i,tmp=LLONG_MIN,s;
pair<long long,long long> a[maxN];

int main()
{
    cin>>n;
    for(i=0;i<n;i++) cin>>a[i].first>>a[i].second;
    sort(a,a+n);
    s=0;
    for(i=0;i<n;i++){
        tmp=max(tmp,a[i].first-s);
        s+=a[i].second;
        ans=max(ans,s-a[i].first+tmp);
    }
    cout<<ans<<endl;
    return 0;
}

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