Learn how to calculate the diameter (longest path) of a binary tree in one pass using recursion. Clear, step-by-step code…

How to calculate the maximum depth of binary tree with simple Python recursion. This beginner-friendly article breaks down the “why”…

Learn how to perform a level-order (BFS) traversal on a binary tree using Python’s collections.deque. This beginner-friendly guide shows you…

Dive into Depth-First Search (DFS) on binary trees! In this friendly guide, we’ll learn about preorder, inorder, and postorder traversals…

Python Program to Count Number of Digits [Problem Link]. EXAMPLES: As only one digit is ‘2’ present in ‘X’ so…

Welcome to this article on extraction of digits in Python. Explained step-by-step with the intuitive approach, code, explanation, dry run…

Time complexity and space complexity, both measure an algorithm’s efficiency. Where time complexity shows how the running time increases with…

Hi everyone! In this article, we’ll guide you through the Python Program for Selection Sort Algorithm. With detailed examples, approach,…

Hi everyone! In this article, we’ll guide you through the Python program to reverse an array using recursion and while…

In this article we’ll guide you through the Python program to Right Rotate an Array by K places (in-place) [Problem…