Submission #20,029

20029

2025-12-31 10:11:09

cpp17

Accepted 50/50

9ms

4280 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	324 KiB
		6	Accepted	4/4	1ms	316 KiB
		7	Accepted	4/4	9ms	4208 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	3636 KiB
		14	Accepted	4/4	4ms	1588 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	316 KiB