Sean Coughlin
Sean Coughlin's Blog

Sean Coughlin's Blog


SWE Interview Preparation

Prepare for your software engineering interview with my comprehensive writing series covering topics from data structures and programming to system design.

Articles in this series

How to Determine Valid Parentheses

Apr 8, 20235 min read

Mastering the Art of String Validation: A Guide to Check the Validity of Parentheses, Brackets, and Braces. ยท The Problem With this article, I will be...

How to Determine Valid Parentheses
Find the Index of the First Occurrence in a String (Naive and KMP Solutions)
Intro to Software Engineering Interview Prep and System Design: Tips and Resources for Success