Coding (Algo)

Read a Record From the Preview End

Algorithm: Linked list Difficulty: Medium Time: 35 minutes

Goal

Return the stored value k positions from the end of the distinct reachable traversal or null when that preview has no such position.

What this task practices

Read a Record From the Preview End is a coding (algo) interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as medium difficulty. It focuses on Technical Reasoning, Testing, Validation. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.