Scale Ai Coding & Algorithms Interview Questions
Practice the exact questions companies are asking right now.
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Implement multi-head attention and LLM sampling
Task A: Multi-head attention (forward pass) You are implementing a Transformer attention layer. Given: - A sequence length L and model dimension d_mod...
Implement a Task Processor
Design a task processor that supports two operations: - AddTask(task): add a new task. - ConsumeTask(): remove and return the id of the next task to e...
Compute party hours per town and city gaps
You are given (1) a region table describing a hierarchy of locations and (2) a list of party attendance time intervals (all timestamps occur within a ...
Compute party time blocks per neighborhood
You are given two datasets: 1. Parties: - party_id (string or integer) - start_timestamp (e.g., UNIX timestamp or datetime) - end_timestamp (...
Compute clock hand angle with seconds and milliseconds
You are given a time in the format "HH:MM", representing a 24-hour clock time with hours and minutes. Extend this to potentially include seconds and m...
Find LCA in a N-ary tree via DFS
You are given the root of a rooted N-ary tree (each node can have zero or more children) and two distinct nodes p and q that belong to the tree. Desig...
Compute community ranges and town idle hours
You are given two in-memory datasets for a party-planning app. 1) PartyWindow: {partyId: string, startTime: ISO-8601 UTC datetime, endTime: ISO-8601 U...