From 02e10549a4bfa1e9af8fbc818bd0dc78dae51024 Mon Sep 17 00:00:00 2001 From: Walt Mankowski Date: Tue, 21 Jul 2020 11:14:29 -0400 Subject: python code for challenge 70 --- challenge-070/walt-mankowski/python/ch-1.py | 15 +++++++++++++++ challenge-070/walt-mankowski/python/ch-2.py | 14 ++++++++++++++ 2 files changed, 29 insertions(+) create mode 100644 challenge-070/walt-mankowski/python/ch-1.py create mode 100644 challenge-070/walt-mankowski/python/ch-2.py (limited to 'challenge-070/walt-mankowski/python') diff --git a/challenge-070/walt-mankowski/python/ch-1.py b/challenge-070/walt-mankowski/python/ch-1.py new file mode 100644 index 0000000000..b3863d1e45 --- /dev/null +++ b/challenge-070/walt-mankowski/python/ch-1.py @@ -0,0 +1,15 @@ +from sys import argv + +# https://perlweeklychallenge.org/blog/perl-weekly-challenge-070/ + +s, c, o = argv[1:4] +S = list(s) +c = int(c) +o = int(o) +n = len(s) + +for i in range(1, c+1): + S[i%n], S[(i+o)%n] = S[(i+o)%n], S[i%n] + +s = "".join(S) +print(s) diff --git a/challenge-070/walt-mankowski/python/ch-2.py b/challenge-070/walt-mankowski/python/ch-2.py new file mode 100644 index 0000000000..be0f8ac2d3 --- /dev/null +++ b/challenge-070/walt-mankowski/python/ch-2.py @@ -0,0 +1,14 @@ +from sys import argv + +n = int(argv[1]) +S = [0, 1, 3, 2] + +def gray_code(n, S): + fmt = f"0{n-1}b" + S2 = [eval(f"0b1{x}") for x in [f"{x:{fmt}}" for x in S][::-1]] + return S + S2 + +for i in range(3, n+1): + S = gray_code(i, S) + +print(S) -- cgit From aa197c2dabf76dc064e5f4b8a39abede35e7b3e6 Mon Sep 17 00:00:00 2001 From: Walt Mankowski Date: Wed, 22 Jul 2020 19:18:41 -0400 Subject: simplified the logic for task 2 --- challenge-070/walt-mankowski/python/ch-2.py | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'challenge-070/walt-mankowski/python') diff --git a/challenge-070/walt-mankowski/python/ch-2.py b/challenge-070/walt-mankowski/python/ch-2.py index be0f8ac2d3..bb052aa981 100644 --- a/challenge-070/walt-mankowski/python/ch-2.py +++ b/challenge-070/walt-mankowski/python/ch-2.py @@ -4,9 +4,7 @@ n = int(argv[1]) S = [0, 1, 3, 2] def gray_code(n, S): - fmt = f"0{n-1}b" - S2 = [eval(f"0b1{x}") for x in [f"{x:{fmt}}" for x in S][::-1]] - return S + S2 + return S + [2**(n-1) + x for x in S][::-1] for i in range(3, n+1): S = gray_code(i, S) -- cgit