Submission #12,497

2024-12-19 11:33:21

cpp17

Accepted 50/50

13ms

8164 KiB

#include <iostream>

using namespace std;

int n,i;
long long v[1000001];

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

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	320 KiB
		2	Accepted	0/0	1ms	320 KiB
		3	Accepted	3/3	1ms	320 KiB
		4	Accepted	3/3	1ms	320 KiB
		5	Accepted	4/4	1ms	320 KiB
		6	Accepted	4/4	1ms	320 KiB
		7	Accepted	4/4	13ms	8164 KiB
		8	Accepted	4/4	2ms	1348 KiB
		9	Accepted	4/4	1ms	320 KiB
		10	Accepted	4/4	1ms	320 KiB
		11	Accepted	4/4	3ms	1944 KiB
		12	Accepted	4/4	13ms	8100 KiB
		13	Accepted	4/4	10ms	7016 KiB
		14	Accepted	4/4	4ms	2872 KiB
		15	Accepted	2/2	1ms	320 KiB
		16	Accepted	2/2	1ms	320 KiB