Generate Pythagorean Triples
Given an integer limit, generate all Pythagorean Triples with values smaller than limit.
Commonly Used Databases (Quick Notes)
A columnar database stores the data of an entire column in consecutive memory blocks, while a relational database stores the data of an entire row of a table in consecutive memory blocks.
How does the Internet Work?
Some of these computers are web servers, which are just specialized computers that contain and serve content from your favorite websites, and others are just the client devices.
Database Index
When a query is run against a column on which a secondary index is created, the database will go to the secondary index (where it is stored) and look for the address of the corresponding row in the table.
Minimum Moves to Equal Array Elements – LeetCode Solution [Medium]
When we increment n – 1 elements, the relative difference between the highest number and all other numbers effectively decreases by 1.
What is the relation between sharding and distributed systems?
Sharding is horizontal (row wise) database partitioning as opposed to vertical (column wise) partitioning which is Normalization.
Bitmasking
You’ve N elements and you need to find the subsets of these N elements where zero or more of the N elements are included or excluded.
Detect Loop in a Linked List | And Remove Loop
Given the head pointer of a linked list, check if there’s a loop in the linked list. Proof of Floyd’s Cycle-Finding Algorithm.
Advanced Competitive Programming Concepts
These are the articles, dedicated specifically to advanced competitive programming concepts. Modular Multiplicative Inverse, Nth Catalan Number.
Machine Learning | Multivariate Linear Regression
Multivariate Linear Regression is similar to linear regression but instead of having single dependent variable Y, we have multiple output variables.