From d1cdd6bd2914289bf868f4cdd4c99979d5464a13 Mon Sep 17 00:00:00 2001
From: Mohammad S Anwar <mohammad.anwar@yahoo.com>
Date: Mon, 13 Feb 2023 06:51:38 +0000
Subject: - Added solutions by Mark Anderson. - Added solutions by W. Luis
 Mochan. - Added solutions by Peter Campbell Smith. - Added solutions by
 Duncan C. White. - Added solutions by Luca Ferrari. - Added solutions by Dave
 Jacoby. - Added solutions by David Ferrone. - Added solutions by Thomas
 Kohler. - Added solutions by Mariano Spadaccini. - Added solutions by Carlos
 Oliveira. - Added solutions by Roger Bell_West. - Added solutions by
 Chicagoist. - Added solutions by Robbie Hatley. - Added solutions by Jorg
 Sommrey. - Added solutions by E. Choroba. - Added solutions by Kjetil
 Skotheim. - Added solutions by Arne Sommer. - Added solutions by Pip Stuart.
 - Added solutions by Robert Ransbottom. - Added solutions by Athanasius. -
 Added solutions by James Smith. - Added solutions by Flavio Poletti. - Added
 solutions by Cheok-Yin Fung. - Added solutions by Solathian. - Added
 solutions by Jan Krnavek. - Added solutions by Eric Cheung. - Added solutions
 by Ulrich Reike. - Added solutions by Robert DiCicco.

---
 challenge-203/eric-cheung/python/ch-1.py | 27 +++++++++++++++++++++++++++
 challenge-203/eric-cheung/python/ch-2.py | 19 +++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100755 challenge-203/eric-cheung/python/ch-1.py
 create mode 100755 challenge-203/eric-cheung/python/ch-2.py

(limited to 'challenge-203/eric-cheung/python')

diff --git a/challenge-203/eric-cheung/python/ch-1.py b/challenge-203/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..87d2020cff
--- /dev/null
+++ b/challenge-203/eric-cheung/python/ch-1.py
@@ -0,0 +1,27 @@
+
+from itertools import combinations
+
+## arrInputList = [1, 2, 3, 6]  ## Example 1
+## arrInputList = [1, 1, 1, 3, 5]  ## Example 2
+arrInputList = [3, 3, 6, 4, 5]  ## Example 2
+
+
+def IsSpecialQuadruplets(arrInput):
+
+    n_a = arrInput[0]
+    n_b = arrInput[1]
+    n_c = arrInput[2]
+    n_d = arrInput[3]
+
+    return (arrInputList[n_a] + arrInputList[n_b] + arrInputList[n_c] == arrInputList[n_d])
+
+
+arrIndxList = list(range(0, len(arrInputList)))
+arrCombList = combinations(arrIndxList, 4)
+arrOutputList = []
+
+for loopComb in list(arrCombList):
+    if IsSpecialQuadruplets(loopComb):
+        arrOutputList.append(loopComb)
+
+print (len(arrOutputList))
diff --git a/challenge-203/eric-cheung/python/ch-2.py b/challenge-203/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..fedcb744a3
--- /dev/null
+++ b/challenge-203/eric-cheung/python/ch-2.py
@@ -0,0 +1,19 @@
+
+## Remarks
+## https://www.geeksforgeeks.org/python-copy-directory-structure-without-files/
+
+import shutil
+import os
+
+ 
+## Define the Function to Ignore the Files If Present in Any Folder
+def GetIgnoreFiles(strDir, strFiles):
+    return [strFileLoop for strFileLoop in strFiles if os.path.isfile(os.path.join(strDir, strFileLoop))]
+
+
+strSourceFolderPath = "/a/b/c"
+strTargetFolderPath = "/x/y"
+
+
+## Calli the shutil.copytree() method and Pass the strSourceFolderPath, strTargetFolderPath and Ignore Parameter
+shutil.copytree(strSourceFolderPath, strTargetFolderPath, ignore = GetIgnoreFiles)
-- 
cgit