Meta Interview Question: Create a function that validates whether you a given string is a number

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Meta interview question

Create a function that validates whether you a given string is a number

Anonymous

14 Nov 2017

Create a function that finds the longest path between two nodes existing in a binary tree

Anonymous

28 Jul 2018

The longest path in a tree is max(1+height left subtree + height right subtree, max(longest(left subtree), longest(right subtree)))