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Understanding Recursion

If you've studied Computer Science, you've heard about recursion before. Recursion is the process of defining a problem in terms of itself, and is surprisingly handy when it comes to cracking tough programming interviews.

In this section, we'll learn how to use recursion to solve a few problems. We'll start with a simple concept, and then build up to more complex problems.

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1. LESSON

A Primer On Recursion

All About Recursion: A Deep Dive Recursion, a powerful and often mystifying concept, holds a special place in the heart of programming. Let's embark on a journey to demystify recursion, understand its relationship with iteration, and visualize how it works. Recursion: What Is It? Recursion is a technique where a function calls itself...

38 minutes Mark Completed

2. LESSON

Problem Solving With Recursion vs. Iteration

Iteration and recursion are both techniques that you can use for implementing solutions in a programming language. I look at both of them as a way of thinking about a problem and solving it. The most important thing to keep in mind before we start discussing them is: **For any problem that can be solved via iteration, there is a corresponding...

99 minutes Mark Completed

3. LESSON

Understanding the Subsets Pattern

Objective: In this lesson, we'll cover this concept, and focus on these outcomes: You'll learn what the subsets pattern is. We'll show you how to use this concept in programming interviews. You'll see how to utilize this concept in challenges. In this tutorial, we...

12 minutes Mark Completed

4. LESSON

Recursive Backtracking For Combinatorial, Path Finding, and Sudoku Solver Algorithms

Recursive Backtracking For Combinatorial, Path Finding, and Sudoku Solver Backtracking Made Simple Backtracking is a very important concept in computer science and is used in many applications. Generally, we use it when all possible solutions of a problem need to be explored. It is also often employed to identify solutions that satisfy...

41 minutes Mark Completed