Cracking the CoderPad Challenge at ElevenLabs: Tackling Complex Sequence Problems

Software Engineering
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ElevenLabs | General | Interview Experience

Interview Date: Not specified
Result: Rejected
Difficulty: Not specified

Interview Process

The interview consisted of an Online Assessment (OA) conducted via CoderPad, lasting for one and a half hours. There were three questions to solve, with the first two requiring 20 minutes each and the last one approximately 50 minutes.

Technical Questions

  1. Join Point of Two Sequences
    Topic: Simulation, Number Theory
    Implement the function compute_join_point(s1: int, s2: int) -> int which takes the starting points of two sequences and returns their join point.

  2. Endpoint Node of Network
    Topic: Graph, Linked List
    Implement the function compute(start_node_id, from_ids, to_ids) which returns the last node ID of the network starting from start_node_id.

  3. Wind and Leaves Grid Problem
    Topic: Array, Simulation
    Write a function that takes a grid of integers representing leaves and a string of wind directions, returning the total number of leaves remaining after all wind events.

Tips & Insights

The first two questions were passed successfully, and the last question was completed but not optimized. It appears the expectation was to solve all three questions correctly. A rejection was received two days later.