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Keywords / Topics Covered hashing explained why hashing cannot be reversed hashing vs encryption one way hash function ...

In this video, we break down: What symmetric encryption really is How hash functions work Why password hashing MUST be ...

Looking something up in an array? O(n). Looking it up in a hash table? O(1). Hash tables use a hash function to transform ...

What turns a file into a fixed-size “fingerprint”? In this video we unpack cryptographic hash functions — what they are, why ...

... ABC the text goes through something called a one-way hashing algorithm and produces a fixed length string called a hash Now ...

Most people memorize the Prefix Sum + Hash Map solution for Subarray Sum Equals K — but don't truly understand why it works.

Arrays and HashMaps are some of the most important topics in coding interviews — and once you understand them, many ...

In this video, I solve LeetCode Problem 1 – Two Sum with a clear and beginner-friendly explanation. You'll learn: • Problem ...

The Rabin–Karp algorithm is one of the most elegant approaches to string matching, built on the power of hashing. Explore stydy ...

Struggling with thread-safe Java Sets? Choosing the wrong Set implementation can lead to performance bottlenecks, race ...

Master LeetCode's most famous interview problem - Two Sum (#1). This video covers: • Problem explanation with examples • Why ...

Ever wondered how websites can store millions of passwords without actually knowing any of them? And why even after a ...

Learn how to solve the famous "Insert Delete GetRandom O(1)" coding interview problem with a constant time complexity solution!

What exactly is Bitcoin Mining and why does it consume energy? It's not just about solving math problems—it's about solving the ...

Ever wondered how blockchain really works and why it's revolutionizing industries? In this video, we break down the mechanics of ...

Did we get the number zero wrong? A Google Gemini AI Interview Unpacks the Secret Architecture of Web4! Get ready to have ...

In this video, we solve the "Contains Duplicate" problem from LeetCode as part of the ThinkDSA Series, where the focus is not just ...

Learn the fundamentals of the Trie Data Structure (Prefix Tree) in this beginner-friendly guide! We break down how Tries work, ...

Quantum computers will break today's encryption — and that's where Post-Quantum Cryptography (PQC) comes in. In this short ...

In this video, we will learn applications of hashing in data structures, which is an important topic of Unit 5 – Hashing as per the ...