2 files changed, 31 insertions, 0 deletions
diff --git a/challenge-242/eric-cheung/python/ch-1.py b/challenge-242/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..b3d79cc846
--- /dev/null
+++ b/challenge-242/eric-cheung/python/ch-1.py
@@ -0,0 +1,20 @@
+
+## Example 1
+## arrNum_01 = [1, 2, 3]
+## arrNum_02 = [2, 4, 6]
+
+## Example 2
+arrNum_01 = [1, 2, 3, 3]
+arrNum_02 = [1, 1, 2, 2]
+
+arrOutput = []
+
+arrOutput_01 = [nLoop for nLoop in list(set(arrNum_01)) if nLoop not in list(set(arrNum_02))]
+if len(arrOutput_01) > 0:
+    arrOutput.append(arrOutput_01)
+
+arrOutput_02 = [nLoop for nLoop in list(set(arrNum_02)) if nLoop not in list(set(arrNum_01))]
+if len(arrOutput_02) > 0:
+    arrOutput.append(arrOutput_02)
+
+print (arrOutput)
diff --git a/challenge-242/eric-cheung/python/ch-2.py b/challenge-242/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..9d487ad23a
--- /dev/null
+++ b/challenge-242/eric-cheung/python/ch-2.py
@@ -0,0 +1,11 @@
+
+arrMatrix = [[1, 1, 0], [0, 1, 1], [0, 0, 1]]  ## Example 0
+## arrMatrix = [[1, 1, 0], [1, 0, 1], [0, 0, 0]]  ## Example 1
+## arrMatrix = [[1, 1, 0, 0], [1, 0, 0, 1], [0, 1, 1, 1], [1, 0, 1, 0]]  ## Example 2
+
+arrOutput = []
+
+for arrLoop in arrMatrix:
+    arrOutput.append([1 - nLoop for nLoop in arrLoop[::-1]])
+
+print (arrOutput)