Category: DSA

DSA Counting Sort Time Complexity Let’s go through this topic very carefully and honestly — like I’m sitting next to you with a notebook, writing down every number, counting every operation together, and explaining...

DSA Radix Sort Time Complexity Let’s understand this topic very clearly and step-by-step, like I’m sitting next to you with a notebook, writing down every part, counting operations together, giving realistic numbers, and explaining...

DSA Merge Sort Time Complexity Let’s talk about this very carefully, step by step, like I’m sitting next to you and we’re solving it together on paper — so you really understand where every...

DSA Linear Search Time Complexity – Let’s understand this topic very clearly and honestly, like I’m sitting next to you explaining it slowly on a piece of paper so you can really see and...

DSA Selection Sort Time Complexity Let’s go through this topic very carefully and honestly — like I’m sitting next to you with a notebook, writing down every number, counting every comparison together, and showing...

DSA Reference is a very important and frequently misunderstood concept, especially when people start learning Data Structures in languages like C++, Java, or even Python (although Python hides it more). Let me explain it...

The Euclidean Algorithm is one of the most beautiful, elegant, and historically important algorithms in all of mathematics and computer science. It is used to find the Greatest Common Divisor (GCD) of two integers...

Huffman Coding – Let’s learn this topic properly, slowly and clearly — like we are sitting together and I’m teaching you from scratch with a notebook and pencil, drawing trees, writing bits, and counting...

The Traveling Salesman Problem (TSP) is one of the most famous, most studied, and most frustrating problems in all of computer science and mathematics. It is very simple to state, but extremely difficult to...

The 0/1 Knapsack Problem is one of the most classic, most important, and most frequently asked problems in Data Structures & Algorithms — especially in interviews. It belongs to a family of problems called...