Submission #23,112

2026-01-16 12:26:52

cpp17

Accepted 40/40

1ms

552 KiB

#include <iostream>

using namespace std;

int main()
{
    int n;
    cin >> n;
    long long int m[29];
    m[1] = 1;
    m[2] = 2;
    m[3] = 5;
    for (int i = 4; i <= n; ++i)
    {
        m[i]= 2 * m[i- 1] + m[i- 3];
    }
    cout << m[n];
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	1ms	508 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	2/2	1ms	316 KiB
		8	Accepted	3/3	1ms	500 KiB
		9	Accepted	3/3	1ms	316 KiB
		10	Accepted	3/3	1ms	316 KiB
		11	Accepted	3/3	1ms	316 KiB
		12	Accepted	3/3	1ms	316 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	3/3	1ms	316 KiB
		15	Accepted	3/3	1ms	552 KiB
		16	Accepted	3/3	1ms	316 KiB
		17	Accepted	3/3	1ms	316 KiB