Submission #170637

#	Time	Username	Problem	Language	Result	Execution time	Memory
170637		mdn2002	Art Exhibition (JOI18_art)	C++14	100 / 100	526 ms	48380 KiB

art

#include<bits/stdc++.h>
using namespace std;
const long long mod=998244353;
long long n,ps[500005];
pair<long long,long long>a[500005];
multiset<long long>ms;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen(".in","r",stdin);
    //freopen(".out","w",stdout);
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>a[i].first>>a[i].second;
    }
    sort(a,a+n);
    for(int i=0;i<n;i++)
    {
        ps[i]=ps[i-1]+a[i].second;
        ms.insert(ps[i]-a[i].first);
    }
    long long ans=0;
    for(int i=0;i<n;i++)
    {
        ans=max(ans,*--ms.end()+a[i].first-ps[i-1]);
        ms.erase(ms.find(ps[i]-a[i].first));
    }
    cout<<ans;
}

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