Compute Exact Mode and Median Across Distributed Nodes
Company: Anthropic
Role: Performance / Infrastructure Software Engineer
Category: Software Engineering Fundamentals
Difficulty: hard
Interview Round: Technical Screen
Overview: Compare exact distributed strategies for mode and median across ten nodes while treating network transfer as the bottleneck. The solution covers local aggregation, tree and ring reductions, hash shuffles, pivot selection, skew, tie rules, even-count ranks, and when a simple gather is optimal.