Submission #738364

#	Time	Username	Problem	Language	Result	Execution time	Memory
738364		alexdd	Financial Report (JOI21_financial)	C++17	48 / 100	4059 ms	9072 KiB

Main

#include<bits/stdc++.h>
using namespace std;
int n,d;
int a[300005];
int pozs[300005];
int dp[300005];
void calc_pozs()
{
    for(int i=1;i<=n;i++)
    {
        int ult=i;
        pozs[i]=i;
        for(int j=i-1;j>0;j--)
        {
            if(ult-j>d)
                 break;
            if(a[j]<a[i])
            {
                ult=j;
                pozs[i]=j;
            }
        }
    }
}
pair<int,int> ord2[300005];
signed main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);

    cin>>n>>d;
    for(int i=1;i<=n;i++)
        cin>>a[i];
    calc_pozs();
    for(int i=1;i<=n;i++)
    {
        ord2[i]={a[i],-i};
    }
    sort(ord2+1,ord2+1+n);
    int cur;
    for(int i=1;i<=n;i++)
    {
        cur = -ord2[i].second;
        for(int j=pozs[cur];j<cur;j++)
            dp[cur] = max(dp[cur], dp[j]);
        dp[cur]++;
    }
    int rez=1;
    for(int i=1;i<=n;i++)
        rez=max(rez,dp[i]);
    cout<<rez;
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35