Dictionary in Python is a data structure. Dictionary is similar to HashTable with some extra features. HashTable is one of the most important data structures in...

Continue reading...# Ibrahim Hasnat

## Number of Islands | LeetCode 200 | Python | Solution

LeetCode 200 The number of islands is one of the most popular programming problems. Read the problem description first. Before getting into the solution, I assume...

Continue reading...## If You Are A Self-learner, These Might Help You

If you are a self-learner, especially a computer programmer or developer, keep the following things in mind. I think keeping these in mind will help you....

Continue reading...## Binary Search Tree | Data Structure

Before getting into the Binary Search Tree (BST), you have to know the basics of Tree and Binary Tree. I assume that you have the basic...

Continue reading...## Same Tree | LeetCode 100 | Python | Solution

LeetCode 100 It’s an easy LeetCode problem, and the description is concise and straightforward. We can solve this problem using the DFS algorithm. From two binary...

Continue reading...## Kth Smallest Element in a BST | LeetCode 230 | Python | Solution

LeetCode 230 I hope you already know about Binary Search Tree. In BST, each node is greater than its left subtree and smaller than its right...

Continue reading...## Binary Tree Level Order Traversal | LeetCode 102 | Python | Solution

LeetCode 102 This problem just simply the implementation of the level order traversal algorithm. If you don’t know about level order traversal yet, you can check...

Continue reading...## Maximum Depth of Binary Tree | LeetCode 104 | Python | Solution

LeetCode 104 It’s a common and basic type of problem. The problem title is self-explanatory. We all know about a binary tree. To solve this problem,...

Continue reading...## Level Order Traversal – BFS Algorithm

This one is another way of traversing through a binary tree. There are many other ways you can do it. Click here to check. Level order...

Continue reading...## Guess The Number – Simple Game Using Python

This game is surely not going to be the fanciest game. But any beginner with a basic knowledge of the Python programming language can built-it and...

Continue reading...