Ibrahim Hasnat

Overview of Python Dictionary | Data Structure

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...

June 24, 2022 by Ibrahim Hasnat Data Structure Python

Number of Islands | LeetCode 200 | Python | Solution

LeetCode 200 Read the problem description first. Before getting into the solution, I assume you already know about the DFS algorithm. We will use this algorithm...

June 9, 2022 by Ibrahim Hasnat LeetCode

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....

May 23, 2022 by Ibrahim Hasnat Misc

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...

April 26, 2022 by Ibrahim Hasnat Data Structure

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...

April 18, 2022 by Ibrahim Hasnat LeetCode

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...

April 11, 2022 by Ibrahim Hasnat LeetCode

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...

April 10, 2022 by Ibrahim Hasnat LeetCode

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,...

March 27, 2022 by Ibrahim Hasnat LeetCode