Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

Thursday Code Puzzler: Binary Clock

DZone's Guide to

Thursday Code Puzzler: Binary Clock

· Java Zone ·
Free Resource

Get the Edge with a Professional Java IDE. 30-day free trial.

Thursday is code puzzler day here at DZone. The idea is simple: solve the coding problem as efficiently as you can, in any language or framework that you find suitable.

Note: Even though there really is nothing stopping you from finding a solution to this on the internet, try to keep honest, and come up with your own answer.  It's all about the participation!

Do you have code puzzlers that you'd like to share with the DZone community?  If so, please submit here. 

How Many 1's Appear in A Binary Clock Across an Entire Day

Say you have a binary clock, where 09:30:22 would be displayed as

Hour:       00001001
Minute:    00011110
Second:   00010110

Calculate the number of 1's that would appear over the course of an entire day of military time starting from 00:00:00 all the way up to 23:59:59


Catch up on all our previous puzzlers here.

 

Get the Java IDE that understands code & makes developing enjoyable. Level up your code with IntelliJ IDEA. Download the free trial.

Topics:

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}