Created
July 29, 2021 15:28
-
-
Save uchidama/76d1c927d5227bbccf42c135b183acb5 to your computer and use it in GitHub Desktop.
AtCoder Beginner Contest 166 [ D - I hate Factorization ] https://atcoder.jp/contests/abc166/tasks/abc166_d
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| ''' | |
| [問題] | |
| https://atcoder.jp/contests/abc166/tasks/abc166_d | |
| [参考] | |
| https://blog.hamayanhamayan.com/entry/2020/05/03/224316 | |
| ここのコードをPythonコンバートしてみたもの。 | |
| 5乗の結果をキャッシュしてるから早いかと思ったら、普通に計算したのと変わらない。 | |
| [結果] | |
| PyPy3 Ac 72ms | |
| ''' | |
| import sys | |
| sys.setrecursionlimit(10 ** 6) # 再帰上限の引き上げ | |
| input = sys.stdin.readline | |
| INF = 2 ** 63 - 1 | |
| X = int(input()) | |
| # 5乗の結果をキャッシュ | |
| F = {} | |
| for i in range(-1000, 1001): | |
| F[i**5] = i | |
| # A^5 - B^5 = Xから、B^5 + Xの値が存在するならば、Aがあるはず | |
| for B5, B in F.items(): | |
| key = B5 + X | |
| if key in F: | |
| A = F[key] | |
| print(A, B) | |
| exit() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment