Toolkit-X: A better way to do DS&A problem lists
Introducing Toolkit-X: a free DS&A toolkit with curated BCtCI problems that can be used like a traditional problem list.
BCtCIDS&A
Herding 1440 Programs: Automating Large-Scale Codebase Changes for BCtCI
How do you coordinate 'trivial' changes across 1440 programs in 5 languages? Lessons from running the BCtCI codebase.
BCtCIAI
BCtCI Chapter: Set & Map Implementations
Learn how sets & maps are built from scratch, and refine your knowledge of hashing.
BCtCIDS&A
BCtCI Chapter: Monotonic Stacks & Queues
Learn how monotonic stacks and queues are two sides of the same idea and how to leverage them in interviews!
BCtCIDS&A
Building Lego castles with recurrences, memoization, and math
A walk through recurrences, memoization, and math tricks -- via Lego castles.
BCtCIDS&A
BCtCI Free Resources
A comprehensive list of all free resources available from Beyond Cracking the Coding Interview, including chapters, problems, tools, and templates.
BCtCIDS&A
BCtCI Chapter: Union-Find
Learn how this fascinating data structure speeds up graph-related operations.
BCtCIDS&A
Top-K Problems: Sorting vs Heaps vs Quickselect
The different approaches to finding the k smallest/largest elements in an array.
BCtCIDS&A
Queues in JS interviews
JS doesn't have built-in queues, which can be an issue if you have to implement a BFS. Here are the workarounds.
BCtCIDS&A
Get Binary Search Right Every Time, Explained Without Code
A binary search recipe that works for every problem, explained without code.
BCtCIDS&A
Problem Solving BCtCI Style
A problem walkthrough using the concepts from Beyond Cracking the Coding Interview.
BCtCIDS&A
Heapify Analysis Without Math
A proof that heapify takes linear time without using complex equations.
BCtCIDS&A