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-rwxr-xr-xchallenge-258/eric-cheung/python/ch-1.py7
-rwxr-xr-xchallenge-258/eric-cheung/python/ch-2.py15
2 files changed, 22 insertions, 0 deletions
diff --git a/challenge-258/eric-cheung/python/ch-1.py b/challenge-258/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..ece02350ec
--- /dev/null
+++ b/challenge-258/eric-cheung/python/ch-1.py
@@ -0,0 +1,7 @@
+
+## arrInt = [10, 1, 111, 24, 1000] ## Example 1
+## arrInt = [111, 1, 11111] ## Example 2
+arrInt = [2, 8, 1024, 256] ## Example 3
+
+arrOutput = [elemLoop for elemLoop in arrInt if len(str(elemLoop)) % 2 == 0]
+print (len(arrOutput))
diff --git a/challenge-258/eric-cheung/python/ch-2.py b/challenge-258/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..a6088a474b
--- /dev/null
+++ b/challenge-258/eric-cheung/python/ch-2.py
@@ -0,0 +1,15 @@
+
+## Example 1
+## arrInt = [2, 5, 9, 11, 3]
+## nInput = 1
+
+## Example 2
+## arrInt = [2, 5, 9, 11, 3]
+## nInput = 2
+
+## Example 3
+arrInt = [2, 5, 9, 11, 3]
+nInput = 0
+
+arrOutput = [elemLoop for nIndx, elemLoop in enumerate(arrInt) if bin(nIndx)[2:].count("1") == nInput]
+print (sum(arrOutput))