Thursday Code Puzzler: Lowest Common Ancestor
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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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Find the Lowest Common Ancestor in a Binary Search Tree
Given a binary search tree, find the lowest common ancestor of two nodes on the tree. Wikipedia defines the lowest common ancestor as follows:
The lowest common ancestor is defined between two nodes v and w as the lowest node in T that has both v and w as descendants (where we allow a node to be a descendant of itself).
Catch up on all our previous puzzlers here.
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