Merge remote-tracking branch 'upstream/master'

1 files changed, 24 insertions, 0 deletions

diff --git a/challenge-090/paulo-custodio/python/ch-2.py b/challenge-090/paulo-custodio/python/ch-2.py
new file mode 100644
index 0000000000..29efd0d507
--- /dev/null
+++ b/challenge-090/paulo-custodio/python/ch-2.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+# Challenge 090
+#
+# TASK #2 > Ethiopian Multiplication
+# Submitted by: Mohammad S Anwar
+# You are given two positive numbers $a and $b.
+#
+# Write a script to demonstrate Ethiopian Multiplication using the given numbers.
+
+import sys
+
+def mul(a,b):
+    mul = 0
+    while True:
+        if (a & 1) != 0:
+            mul += b
+        if a <= 1:
+            break
+        a >>= 1
+        b <<= 1
+    return mul
+
+print(mul(int(sys.argv[1]), int(sys.argv[2])))