The enumerate function in Javascript
In Python, the enumerate function is an iterator that returns/yield each time a tuple that contains an index (starting from 0 and incrementing) and the element in the list. …
How to Check If Word Is Valid After Substitutions using Stack or Recursion?
We are given that the string “abc” is valid. From any valid string V, we may split V into two pieces X and Y such that X + Y …
The Contiguous Binary Array with Equal Numbers of Ones and Zeros
Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1. Example 1: Input: Output: 2 Explanation: is the longest contiguous …
Microbit Programming: Showing a Running Pixel on the LED
Last week, we talked about the loops (for and while), this week, we’ll learn the basics of the LED screen of the Microbit. Basics of LED The LED is …
How to Print Immutable Linked List in Reverse using Recursion or Stack?
You are given an immutable linked list, print out all values of each node in reverse with the help of the following interface: ImmutableListNode: An interface of immutable linked …
The Most Useful Tools for Reverse Phone Lookup
Getting calls from people you don’t know can be infuriating and annoying. You never get to know whether it is your old friend, your son’s music teacher from 5 …