© Tomas Castelazo, www.tomascastelazo.com / Wikimedia Commons / CC BY-SA 4.0 Linked lists are taught as fundamental data structures in programming courses, but they are more commonly encountered in tech interviews than in real-world projects. In this post, I'll demonstrate a practical use case where a linked list significantly outperforms Vec. We will build a simple data validation library that shows the exact error location within invalid input, showcasing how a linked list can be used in graph...