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Thursday Code Puzzler: Does the Linked List Have a Circular Reference?

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Thursday Code Puzzler: Does the Linked List Have a Circular Reference?

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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!

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Determine if there is a circular reference in a linked list

Given a single linked list, write a method that will determine if the "next" pointer of one of the nodes is pointing to a previous node in your list.


Catch up on all our previous puzzlers here.

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