Submission #47127

#	Time	Username	Problem	Language	Result	Execution time	Memory
47127		dqhungdl	Art Exhibition (JOI18_art)	C++17	100 / 100	773 ms	231104 KiB

art

#include <bits/stdc++.h>
using namespace std;

typedef pair<int64_t,int64_t> ii;
int64_t n,s[500005];
ii a[500005];

int main()
{
    cin>>n;
    for(int64_t i=1;i<=n;i++)
        cin>>a[i].first>>a[i].second;
    sort(a+1,a+n+1);
    for(int64_t i=1;i<=n;i++)
        s[i]=s[i-1]+a[i].second;
    int64_t maxn=-1e18,res=-1e18;
    for(int64_t i=1;i<=n;i++)
    {
        maxn=max(maxn,a[i].first-s[i-1]);
        res=max(res,s[i]-a[i].first+maxn);
    }
    cout<<res;
}

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