Coding (Algo)

Count Records Before a Repeated Link

Algorithm: Linked list Difficulty: Easy Time: 25 minutes

Goal

Count distinct node indexes visited from head before reaching null or attempting to revisit an already seen node.

What this task practices

Count Records Before a Repeated Link 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 easy 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.