結果

問題 No.533 Mysterious Stairs
ユーザー McGregorshMcGregorsh
提出日時 2022-10-31 23:16:36
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 363 ms / 5,000 ms
コード長 2,344 bytes
コンパイル時間 127 ms
コンパイル使用メモリ 82,420 KB
実行使用メモリ 185,748 KB
最終ジャッジ日時 2024-07-08 10:54:03
合計ジャッジ時間 5,987 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 130 ms
89,344 KB
testcase_01 AC 131 ms
89,344 KB
testcase_02 AC 128 ms
89,088 KB
testcase_03 AC 126 ms
89,344 KB
testcase_04 AC 123 ms
89,344 KB
testcase_05 AC 130 ms
89,020 KB
testcase_06 AC 136 ms
89,232 KB
testcase_07 AC 132 ms
89,344 KB
testcase_08 AC 126 ms
89,472 KB
testcase_09 AC 127 ms
89,492 KB
testcase_10 AC 129 ms
89,344 KB
testcase_11 AC 135 ms
89,344 KB
testcase_12 AC 133 ms
90,112 KB
testcase_13 AC 138 ms
89,928 KB
testcase_14 AC 139 ms
89,916 KB
testcase_15 AC 138 ms
89,728 KB
testcase_16 AC 140 ms
90,112 KB
testcase_17 AC 138 ms
90,112 KB
testcase_18 AC 142 ms
90,316 KB
testcase_19 AC 145 ms
90,000 KB
testcase_20 AC 169 ms
100,224 KB
testcase_21 AC 171 ms
101,632 KB
testcase_22 AC 223 ms
127,088 KB
testcase_23 AC 363 ms
184,704 KB
testcase_24 AC 362 ms
185,748 KB
testcase_25 AC 159 ms
100,352 KB
testcase_26 AC 332 ms
172,800 KB
testcase_27 AC 201 ms
114,688 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import sys, re
from fractions import Fraction
from math import ceil, floor, sqrt, pi, factorial, gcd
from copy import deepcopy
from collections import Counter, deque, defaultdict
from heapq import heapify, heappop, heappush
from itertools import accumulate, product, combinations, combinations_with_replacement, permutations
from bisect import bisect, bisect_left, bisect_right
from functools import reduce
from decimal import Decimal, getcontext, ROUND_HALF_UP
def i_input(): return int(input())
def i_map(): return map(int, input().split())
def i_list(): return list(i_map())
def i_row(N): return [i_input() for _ in range(N)]
def i_row_list(N): return [i_list() for _ in range(N)]
def s_input(): return input()
def s_map(): return input().split()
def s_list(): return list(s_map())
def s_row(N): return [s_input for _ in range(N)]
def s_row_str(N): return [s_list() for _ in range(N)]
def s_row_list(N): return [list(s_input()) for _ in range(N)]
def lcm(a, b): return a * b // gcd(a, b)
def get_distance(x1, y1, x2, y2):
	  d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
	  return d
def rotate(table):
   	  n_fild = []
   	  for x in zip(*table[::-1]):
   	  	  n_fild.append(x)
   	  return n_fild
sys.setrecursionlimit(10 ** 7)
INF = float('inf')
MOD = 10 ** 9 + 7
MOD2 = 998244353


###関数コピーしたか?###
def main():
   
   N = int(input())
   
   dp = [[0] * 3 for i in range(N+1)] 
   if N == 1:
   	  dp[1][0] = 1
   elif N == 2:
   	  dp[1][0] = 1
   	  dp[2][1] = 1
   else:
   	  dp[1][0] = 1
   	  dp[2][1] = 1
   	  dp[3][2] = 1
   
   for i in range(N):
   	  for j in range(3):
   	  	  if j == 0:
   	  	  	  if i + 2 <= N:
   	  	  	  	  dp[i+2][1] += dp[i][j]
   	  	  	  	  dp[i+2][1] %= MOD
   	  	  	  if i + 3 <= N:
   	  	  	  	  dp[i+3][2] += dp[i][j]
   	  	  	  	  dp[i+3][2] %= MOD
   	  	  elif j == 1:
   	  	  	  if i + 1 <= N:
   	  	  	  	  dp[i+1][0] += dp[i][j]
   	  	  	  	  dp[i+1][0] %= MOD
   	  	  	  if i + 3 <= N:
   	  	  	  	  dp[i+3][2] += dp[i][j]
   	  	  	  	  dp[i+3][2] %= MOD
   	  	  elif j == 2:
   	  	  	  if i + 1 <= N:
   	  	  	  	  dp[i+1][0] += dp[i][j]
   	  	  	  	  dp[i+1][0] %= MOD
   	  	  	  if i + 2 <= N:
   	  	  	  	  dp[i+2][1] += dp[i][j]
   	  	  	  	  dp[i+2][1] %= MOD
   #print(dp)
   print(sum(dp[N]) % MOD)
   	  	  
if __name__ == '__main__':
    main()
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