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Recursion Fundamentals
Who Should Take This Course?
What is Recursion?
Recursion and Memory Visualization
Direct Vs. Indirect Recursion
When to Use Recursion?
Understanding a Recursive Problem
Test Your Knowledge 1
Iteration Vs. Recursion
Overview of Iterative Functions
Differences Between Iterative and Recursive Functions
Converting Iterative Code to Recursive Code
Count Vowels in a String
Challenge 1: Compute Square of a Number
Solution Review: Compute the Square of a Number
Challenge 2: Search First Occurrence of a Number
Solution Review: Search First Occurrence of a Number
Challenge 3: Corresponding Fibonacci Number
Solution Review: Corresponding Fibonacci Number
Test Your Knowledge 2
Recursion with Numbers
The Power of a Number
Sum of Integers from 1 to n
Modulus
Challenge 1: Find the Greatest Common Divisor
Solution Review: Find the Greatest Common Divisor
Challenge 2: Pascal's Triangle
Solution Review: Pascal's Triangle
Challenge 3: Convert Decimal Number to Binary Number
Solution Review: Convert Decimal Number to Binary Number
Test Your Knowledge 3
Recursion with Strings
Remove Tabs in a String
Remove All Adjacent Duplicates from a String
Merge Two Sorted Strings Lexicographically
Challenge 1: Length of a String
Solution Review: Length of a String
Challenge 2: Sum of Digits in a String
Solution Review: Sum of Digits in a String
Challenge 3: Check for a Palindrome
Solution Review: Check for a Palindrome
Test Your Knowledge 4
Recursion with Arrays
Count All Occurrences of a Number
Invert an Array
Replace All Negative Numbers with Zero
Challenge 1: Average of Numbers
Solution Review: Average of Numbers
Challenge 2: Balance Parenthesis
Solution Review: Balance Parenthesis
Challenge 3: Sort an Array
Solution Review: Sort an Array
Test Your Knowledge 5
Recursion with Data Structures
Reverse Linked List
Depth First Traversal of Graph
Challenge 1: Length of a Linked List
Solution Review: Length of a Linked List
Challenge 2: Reverse a Stack
Solution Review: Reverse a Stack
Challenge 3: Topological Sorting of a Graph
Solution Review 3: Topological Sorting of a Graph
Test Your Knowledge 6
Conclusion
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Recursion for Coding Interviews in Python
Challenge 1: Length of a String
Given a string, find its length using recursion.
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Problem Statement
Input
Output
Sample Input
Sample Output
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Problem Statement
Implement a
...