Submission #9,657

2024-02-23 18:12:12

python3

Time limit exceeded 38/50

234ms

13220 KiB

import sys

sys.setrecursionlimit(10**9)

memo={}

def main2():
    N = int(input())

    def torony(magassag):
        if magassag == 0:
            return 0
        if magassag == 1:
            return 2
        if magassag == 2:
            return 4
        if magassag == 3:
            return 8+2
        if magassag in memo:
            return memo[magassag]
        res=0
        res += 2*torony(magassag-1)
        if magassag >= 3:
            res += 2*torony(magassag - 3)
        memo[magassag]=res%20210108
        return res%20210108

    print(torony(N))

#main2()

def main():

    N = int(input())

    if N == 0:
        return 0
    if N == 1:
        return 2
    if N == 2:
        return 4
    if N == 3:
        return 8+2
    a,b,c=2,4,10
    for i in range(N-3):
        # 2 ,4 ,10 , ?
        # 2*10+2*2=24
        a,b,c=b,c,(2*c+2*a)%20210108
    return c

print(main())

	Sum	Test	Verdict		Time	Memory
base	38/50
		1	Accepted	0/0	17ms	11432 KiB
		2	Accepted	0/0	18ms	11780 KiB
		3	Accepted	3/3	17ms	11708 KiB
		4	Accepted	3/3	18ms	12108 KiB
		5	Accepted	4/4	17ms	12140 KiB
		6	Accepted	4/4	17ms	12316 KiB
		7	Time limit exceeded	0/4	234ms	12384 KiB
		8	Accepted	4/4	45ms	12532 KiB
		9	Accepted	4/4	17ms	12548 KiB
		10	Accepted	4/4	17ms	12360 KiB
		11	Accepted	4/4	61ms	12792 KiB
		12	Time limit exceeded	0/4	231ms	12940 KiB
		13	Time limit exceeded	0/4	208ms	13220 KiB
		14	Accepted	4/4	90ms	13096 KiB
		15	Accepted	2/2	17ms	13008 KiB
		16	Accepted	2/2	17ms	13128 KiB