Trees and Binary Search Trees: Taxonomy, Invariant, and Traversal/Search
Company: SIG (Susquehanna)
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: medium
Interview Round: Onsite
Overview: This question evaluates a candidate's grasp of tree data structures and the binary search tree ordering invariant, along with the ability to implement traversal and search operations. It is a common software engineering fundamentals topic used to check whether someone can precisely define an invariant, write correct code, and reason about time and space complexity relative to tree shape.
Read the full SIG (Susquehanna) Software Engineer interview experience this question came from