Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree root, repeatedly delete all leaves that have even values. That is, if after deletions, a node …
The str_repeat function is a commonly used function that allows you to print/generate a string that is filled with a number of common patterns. For example: str_repeat(3, “Hello “) …
You are given a 2D integer array logs where each logs = indicates the birth and death years of the ith person. The population of some year x is …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a two-dimensional list of integers intervals where each list represents an inclusive interval. Return the longest interval …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer n representing n full beer bottles. Given that you can exchange 3 empty beer bottles …
Often, we need to be able to convert Object to JSON (which is also called persistence of data) and then be able to convert it (JSON) back to Object. …