BinarySearch is a Ruby gem that implements a self-balancing binary search tree using the Red-Black Tree algorithm. It provides a list-like interface with blazing-fast search, insertion, and deletion ...

Get unlimited access to ad-free articles and exclusive content. Clones of the scraggly, beloved cherry blossom tree felled two years ago in the nation’s capital have flowered for the first time this ...

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.

John Authers is a senior editor for markets and Bloomberg Opinion columnist. A former chief markets commentator at the Financial Times, he is author of “The Fearful Rise of Markets.” ...