Coding Interview Preparation

Note

This is part of my personal interview prep. I also have separate repos for:

• High-level design
• Low-level design

My preparation for coding interviews: notes, explanations and Python solutions organized by coding pattern.

The structure follows Design Gurus's Grokking the Coding Interview: Patterns for Coding Questions course.

Inside each pattern folder:

• README.md: summarizes the pattern, including its key idea, general approach, common variations, and typical pitfalls.
• PROBLEMS.md: lists the pattern problems, highlighting must-review problems for quick practice.
• Individual files, one for each problem.

Patterns

#	Pattern	Problems
00	Warmup	8
01	Two Pointers	12
02	Fast and Slow Pointers	9
03	Sliding Window	13
04	Merge Intervals	8
05	Cyclic Sort	8
06	In-Place Reversal of a Linked List	7
07	Stacks	7
08	Monotonic Stack	7
09	Hash Maps	5
10	Tree Level Order Traversal	14
11	Tree Depth First Search	7
13	Matrix Traversal	5
14	Two Heaps	4
18	Top K Elements	1
29	Prefix Sum	7
33	Miscellaneous	1

Problem lists

• Blind 75 List
• Grind 75 List
• Grind 169 List
• NeetCode 150

Contributing

This repository reflects personal learning and interview preparation. It is primarily for personal use, but suggestions and improvements are welcome through issues and pull requests