Submission #12,054

12054

2024-11-26 13:34:52

cpp17

Accepted 40/40

1ms

512 KiB

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

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

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	1ms	320 KiB
		2	Accepted	0/0	1ms	512 KiB
		3	Accepted	2/2	1ms	320 KiB
		4	Accepted	2/2	1ms	320 KiB
		5	Accepted	2/2	1ms	320 KiB
		6	Accepted	2/2	1ms	320 KiB
		7	Accepted	2/2	1ms	320 KiB
		8	Accepted	3/3	1ms	356 KiB
		9	Accepted	3/3	1ms	512 KiB
		10	Accepted	3/3	1ms	324 KiB
		11	Accepted	3/3	1ms	320 KiB
		12	Accepted	3/3	1ms	320 KiB
		13	Accepted	3/3	1ms	320 KiB
		14	Accepted	3/3	1ms	320 KiB
		15	Accepted	3/3	1ms	320 KiB
		16	Accepted	3/3	1ms	320 KiB
		17	Accepted	3/3	1ms	320 KiB