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

Thursday Code Puzzler: Matrix Search

DZone's Guide to

Thursday Code Puzzler: Matrix Search

· Java Zone
Free Resource

Learn how to stop testing everything every sprint and only test the code you’ve changed. Brought to you by Parasoft.

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. 

Matrix Search 

Given a matrix of 1s and 0s, write an algorithm that will find the groups of 1s. A group is a series of 1's that are connected in any direction. An example matrix would look as follows, defined as a 2d array of integers

10111000
10110001

Catch up on all our previous puzzlers here.

 

Get the top tips for Java developers and best practices to overcome common challenges. Brought to you by Parasoft.

Topics:

Opinions expressed by DZone contributors are their own.

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

{{ parent.tldr }}

{{ parent.urlSource.name }}