Submission #20,755

20755

2026-01-08 19:05:29

pypy3

Accepted 80/80

68ms

29416 KiB


n = int(input())
mod = 20210108
sol = [0] * (n + 1)

sol[0] = 1
sol[1] = 3
for i in range(2, n + 1):
    sol[i] = (3*sol[i-1] + sol[i-2]) % mod
print(sol[n])

	Sum	Test	Verdict		Time	Memory
base	80/80
		1	Accepted	0/0	37ms	19576 KiB
		2	Accepted	0/0	46ms	21616 KiB
		3	Accepted	4/4	43ms	19404 KiB
		4	Accepted	4/4	43ms	19368 KiB
		5	Accepted	5/5	43ms	19364 KiB
		6	Accepted	5/5	39ms	19360 KiB
		7	Accepted	6/6	61ms	29416 KiB
		8	Accepted	6/6	57ms	22412 KiB
		9	Accepted	7/7	45ms	19356 KiB
		10	Accepted	7/7	45ms	19300 KiB
		11	Accepted	8/8	48ms	23016 KiB
		12	Accepted	8/8	61ms	29212 KiB
		13	Accepted	8/8	68ms	28464 KiB
		14	Accepted	8/8	59ms	24160 KiB
		15	Accepted	2/2	39ms	19436 KiB
		16	Accepted	2/2	37ms	19460 KiB