Thursday Code Puzzler: Playlist Shuffle Algorithm
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.
A Reliable Playlist Shuffle Algorithm
One thing I hate is when an implementation of shuffle on a media player results in a song repeating sooner than I would like, or earlier than it should. The challenge today is to write a method that takes a list of Song objects (with title, album and artist fields) and ensures that the space between a song repeating is as much as possible without having the same pattern used if the shuffle goes into a second (or third) run.
Catch up on all our previous puzzlers here.