Member of Technical Staff
Design Insert Delete GetRandom O(1)
Design a data structure that supports `insert(value)`, `delete(value)`, and `getRandom()` operations in O(1) time complexity. Discuss trade-offs and edge cases.
This question was asked in
Salesforce Member of Technical Staff Interview Experience
The Salesforce interview process comprised five distinct rounds starting with an Online Assessment on HackerRank focusing on Arrays, Strings, and Graphs. This was followed by a Virtual Screening round and two Onsite technical rounds that heavily tested Data Structures and Algorithms, binary search, heaps, dynamic programming, and low-level data structure design. The process concluded with a comprehensive Hiring Manager round covering behavioral aspects, past project architecture, ownership, and conflict resolution. Overall, the interview was moderately difficult and placed a strong emphasis on clean code, optimization, and system design fundamentals.