Submission #20,028

20028

2025-12-31 10:08:34

cpp17

Accepted 50/50

10ms

4304 KiB

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

int main()
{
    int n;
    cin>>n;
    vector<int>v(n+1);
    v[1]=2;
    v[2]=4;
    v[3]=10;
    for(int i=4; i<=n; i++)
    {
        v[i]=(2*v[i-1]+2*v[i-3])%20210108;
    }
    cout<<v[n];
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	508 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	3/3	1ms	508 KiB
		4	Accepted	3/3	1ms	316 KiB
		5	Accepted	4/4	1ms	400 KiB
		6	Accepted	4/4	1ms	316 KiB
		7	Accepted	4/4	10ms	4304 KiB
		8	Accepted	4/4	2ms	820 KiB
		9	Accepted	4/4	1ms	508 KiB
		10	Accepted	4/4	1ms	756 KiB
		11	Accepted	4/4	3ms	1200 KiB
		12	Accepted	4/4	9ms	4300 KiB
		13	Accepted	4/4	8ms	3636 KiB
		14	Accepted	4/4	4ms	1592 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	316 KiB