From f90349fbd02a4b243f73bcdfc245abfa36df497f Mon Sep 17 00:00:00 2001
From: Lubos Kolouch <lubos@kolouch.net>
Date: Mon, 24 Apr 2023 19:00:10 +0200
Subject: Challenge 070 LK

---
 challenge-070/lubos-kolouch/python/ch-1.py | 16 ++++++++++++++++
 challenge-070/lubos-kolouch/python/ch-2.py | 14 ++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 challenge-070/lubos-kolouch/python/ch-1.py
 create mode 100644 challenge-070/lubos-kolouch/python/ch-2.py

(limited to 'challenge-070/lubos-kolouch/python')

diff --git a/challenge-070/lubos-kolouch/python/ch-1.py b/challenge-070/lubos-kolouch/python/ch-1.py
new file mode 100644
index 0000000000..21cbaaff44
--- /dev/null
+++ b/challenge-070/lubos-kolouch/python/ch-1.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+S = "perlandraku"
+C = 3
+O = 4
+N = len(S)
+S = list(S)
+
+for i in range(1, C + 1):
+    x = i % N
+    y = (i + O) % N
+    S[x], S[y] = S[y], S[x]
+
+S = "".join(S)
+print(S)
diff --git a/challenge-070/lubos-kolouch/python/ch-2.py b/challenge-070/lubos-kolouch/python/ch-2.py
new file mode 100644
index 0000000000..48ab086970
--- /dev/null
+++ b/challenge-070/lubos-kolouch/python/ch-2.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+N = 4
+gray_code = ["0", "1"]
+
+for i in range(2, N + 1):
+    rev_gray_code = gray_code[::-1]
+    gray_code = ["0" + x for x in gray_code]
+    rev_gray_code = ["1" + x for x in rev_gray_code]
+    gray_code += rev_gray_code
+
+gray_code = [int(x, 2) for x in gray_code]
+print(gray_code)
-- 
cgit