The ultimate guide to recursion interviews with strategies developed by FAANG engineers. Practice with real-world interview questions, detailed explanations, and visualizations to prep faster.

If you’ve got an interview coming up and want to brush up on your knowledge, or if you’ve ever struggled with solving coding problems using recursion, you'll find this course helpful.
 
You’ll start with the basics of what recursion is and why it’s important before diving into what it looks like in practice. You’ll see how recursion can help you solve a variety of different math, string, and data structure problems by using interactive code playgrounds that you can execute directly in your browser. You’ll have access to detailed explanations and visualizations for each problem to help you along the way.  
 
By the time you’re done, you’ll be able to use what you’ve learned to solve complex real-world problems and even advance more easily through your interviews at top tech companies.

Recursion for Coding Interviews in Java

## What do we mean by merging alphabetically?

When given two strings that are in alphabetic order, we can combine them to create a string that is both sorted alphabetically and the combination of those two strings. 

To better understand, look see the illustration below:


# What do we mean by merging alphabetically?

When given two strings that are in alphabetic order, we can combine them to create a string that is both sorted alphabetically and the combination of those two strings. 

To better understand, look see the illustration below:


This lesson will teach you how to merge two already sorted strings using recursion so that the resulting string is also sorted.

Fundamentals of Recursion

Iteration to Recursion

Recursion with Numbers

Recursion with Strings

Recursion with Arrays

Recursion with Data Structures

Merging Strings in Alphabetic Order

What do we mean by merging alphabetically?