Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array.

Preparing for coding interviews can be a real challenge with developers often spending several weeks reviewing and learning new material. The truth is, that most developers never quite feel fully ...

Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child ...