結果

問題 No.505 カードの数式2
ユーザー McGregorshMcGregorsh
提出日時 2022-10-30 14:26:02
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 2,440 bytes
コンパイル時間 341 ms
コンパイル使用メモリ 87,236 KB
実行使用メモリ 92,924 KB
最終ジャッジ日時 2023-09-21 12:19:17
合計ジャッジ時間 9,975 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge15
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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 248 ms
92,452 KB
testcase_01 AC 238 ms
92,404 KB
testcase_02 AC 234 ms
92,512 KB
testcase_03 AC 227 ms
92,276 KB
testcase_04 AC 233 ms
92,664 KB
testcase_05 AC 232 ms
92,188 KB
testcase_06 AC 234 ms
92,400 KB
testcase_07 AC 234 ms
92,360 KB
testcase_08 AC 232 ms
92,556 KB
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 AC 231 ms
92,384 KB
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 AC 238 ms
92,444 KB
testcase_21 AC 238 ms
92,312 KB
testcase_22 WA -
testcase_23 WA -
testcase_24 WA -
testcase_25 WA -
testcase_26 WA -
testcase_27 WA -
testcase_28 WA -
testcase_29 WA -
testcase_30 WA -
testcase_31 WA -
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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())
   A = i_list()
   
   dp = [[-INF] * 4 for i in range(N+1)]
   for i in range(4):
   	  dp[0][i] = 0
   	  
   for i in range(N):
   	  cost = A[i]
   	  for j in range(4):
   	  	  point = dp[i][j]
   	  	  dp[i+1][0] = max(dp[i+1][0], dp[i][0] + cost, dp[i][1] + cost, dp[i][2] + cost, dp[i][3] + cost)
   	  	  dp[i+1][1] = max(dp[i+1][1], dp[i][0] - cost, dp[i][1] - cost, dp[i][2] - cost, dp[i][3] - cost)
   	  	  if dp[i][0] == -INF:
   	  	  	  a = -INF
   	  	  else:
   	  	  	  a = dp[i][0] * cost
   	  	  if dp[i][1] == -INF:
   	  	  	  b = -INF
   	  	  else:
   	  	  	  b = dp[i][1] * cost
   	  	  if dp[i][2] == -INF:
   	  	  	  c = -INF
   	  	  else:
   	  	  	  c = dp[i][2] * cost
   	  	  if dp[i][3] == -INF:
   	  	  	  d = -INF
   	  	  else:
   	  	  	  d = dp[i][3] * cost
   	  	  dp[i+1][2] = max(dp[i+1][2], a, b, c, d)
   	  	  if cost == 0:
   	  	  	  continue
   	  	  dp[i+1][3] = max(dp[i+1][3], dp[i][0] // cost, dp[i][1] // cost, dp[i][2] // cost, dp[i][3] // cost)
   #print(dp)
   print(max(dp[N]))
   
if __name__ == '__main__':
    main()
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