2 files changed, 33 insertions, 0 deletions
diff --git a/challenge-197/eric-cheung/python/ch-1.py b/challenge-197/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..b84bff5774
--- /dev/null
+++ b/challenge-197/eric-cheung/python/ch-1.py
@@ -0,0 +1,10 @@
+
+import numpy as np
+
+## arrInputList = np.array([1, 0, 3, 0, 0, 5])  ## Example 1
+## arrInputList = np.array([1, 6, 4])  ## Example 2
+arrInputList = np.array([0, 1, 0, 2, 0])  ## Example 3
+
+arrOutputList = np.append(arrInputList[arrInputList != 0], arrInputList[arrInputList == 0])
+
+print (arrOutputList)
diff --git a/challenge-197/eric-cheung/python/ch-2.py b/challenge-197/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..f95f735238
--- /dev/null
+++ b/challenge-197/eric-cheung/python/ch-2.py
@@ -0,0 +1,23 @@
+
+## Remarks
+## https://zhenyu0519.github.io/2020/07/12/lc280/
+
+def wiggleSort(arrSubInput):
+
+    bGtr = False
+    arrSubOutput = arrSubInput
+
+    for nLoop in range(len(arrSubOutput) - 1):
+        if bGtr and arrSubOutput[nLoop] <= arrSubOutput[nLoop + 1] or not bGtr and arrSubOutput[nLoop] >= arrSubOutput[nLoop + 1]:
+            arrSubOutput[nLoop], arrSubOutput[nLoop + 1] = arrSubOutput[nLoop + 1], arrSubOutput[nLoop]
+
+        bGtr = not bGtr
+
+    return arrSubOutput
+
+
+## arrInputList = [1, 5, 1, 1, 6, 4]  ## Example 1
+## arrInputList = [1, 3, 2, 2, 3, 1]  ## Example 2
+arrInputList = [1, 5, 2, 3, 4, 6]  ## Example
+
+print (wiggleSort(arrInputList))