Add the power of two exercise
| author |
Louis Opter <kalessin@kalessin.fr> |
| date |
Sun, 30 Jun 2013 23:43:41 -0700 |
| parents |
20fea762903e |
| children |
6bebf4b42ebc |
| files |
misc/poweroftwo/question.rst misc/poweroftwo/solution.py |
| diffstat |
2 files changed, 8 insertions(+), 0 deletions(-)
[+]
|
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/poweroftwo/question.rst Sun Jun 30 23:43:41 2013 -0700
@@ -0,0 +1,4 @@
+Is a Power of 2?
+================
+
+Write a function that returns true if the given number is a power of two.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/poweroftwo/solution.py Sun Jun 30 23:43:41 2013 -0700
@@ -0,0 +1,4 @@
+#!/usr/bin/env python
+
+def is_power_of_two(n):
+ return n > 0 and not n & (n - 1)
