Submission #752116

#	Time	Username	Problem	Language	Result	Execution time	Memory
752116		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	183 ms	9268 KiB

art

#include<bits/stdc++.h>
#define ll pair <long long,long long>
using namespace std;

ll a[5000002];
long long oo=100000000000000000;

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int n;
    cin >> n;
    for (int i=1;i<=n;i++)
    {
        cin >> a[i].first >> a[i].second;
    }
    sort (a+1,a+1+n);
    int i2=1;
    long long tong=0;
    long long kq=0-oo;
    for (int i=1;i<=n;i++)
    {
        if (tong<a[i].first-a[i2].first)
        {
            tong=0;
            i2=i;
        }
        tong=tong+a[i].second;
        // while ((i2<i) and (a[i2+1].first-a[i2].first>a[i2].second)) 
        // {
        //     tong=tong-a[i2].second;
        //     i2++;
        // }
        kq=max(kq,tong-(a[i].first-a[i2].first));
        // cout << i << " " << i2 << " " <<  tong-(a[i].first-a[i2].first) << '\n';
    }
    cout << kq;
}

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