This video explains the entire concept of hashing.How hashing is done, What are hash functions, How mapping is done to a hashtable and also What are collisions and different possible techniques to avoid collision.I have explained answer and intuition to Read full
This video explains the need for using hashmap and how it improves the frequent operations time complexity.I have compared all the simple data structures with hashmap based on search as our frequent operation.I have shown that if searching is frequently Read full
This video explains the conceptual differences between hashing and hashtable. I have explained the basic concept of both hashing as well as hashtable using real life examples.In this video, I have explained what is hash function and also about many Read full
This video explains how to find median in a data stream.In this problem, given a stream of integers we are required to find median at any given point in a running integer also known as stream of integers.I have explained Read full
This roadmap document has been shared by a google engineer with the objective of providing courses for aspiring candidates to make them ready for technical interviews.