Submission #20,031

20031

2025-12-31 10:16:10

cpp17

Accepted 50/50

9ms

4336 KiB

#include <iostream>
#include <vector>

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	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	3/3	1ms	316 KiB
		4	Accepted	3/3	1ms	316 KiB
		5	Accepted	4/4	1ms	316 KiB
		6	Accepted	4/4	1ms	316 KiB
		7	Accepted	4/4	9ms	4336 KiB
		8	Accepted	4/4	2ms	820 KiB
		9	Accepted	4/4	1ms	316 KiB
		10	Accepted	4/4	1ms	316 KiB
		11	Accepted	4/4	3ms	1076 KiB
		12	Accepted	4/4	9ms	4280 KiB
		13	Accepted	4/4	8ms	3836 KiB
		14	Accepted	4/4	4ms	1728 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	316 KiB