Hot100: Sort List Linked-List Merge Sort ACERS Guide
Subtitle / Summary LeetCode 148 is not about whether you can sort; it is about choosing the right sorting strategy for linked-list constraints. For singly linked lists, merge sort fits naturally: split by middle, sort recursively, merge linearly. Reading time: 12-16 min Tags: Hot100, linked list, merge sort, divide and conquer SEO keywords: Sort List, linked list merge sort, LeetCode 148, Hot100 Meta description: A practical ACERS guide for LeetCode 148 with derivation, complexity analysis, engineering mappings, and runnable code in multiple languages. Target Readers Hot100 learners building reusable linked-list templates Developers who struggle with split-and-reconnect pointer safety Engineers who want a clear answer to “why merge sort for linked lists” Background / Motivation Sorting linked structures appears in real systems: ...