Startup - VO Prep

Startup Startup / VO Coding Interview Question: Find Common Items in Two Lists

Given 2 lists, find the common items in both lists. This problem asks you to find the common items shared by two lists. A standard solution is to store…

Startup Startup / VO Interview Question: Music Service – Trending Songs (In-Memory Song Play Tracking)

Build a simple class that implements a basic in-memory service that: Records a song play event for a given song id Returns play counts for individual so…

Startup Startup Interview Coding Question: Spiral Matrix III

You are given a matrix whose elements are initially set to 0 and a starting position (startRow, startCol) (0-based indexing). Fill the matrix with incre…

Startup Startup / VO Coding Interview: Reservation System for a Predefined Set of Conference Rooms

Build a reservation system for a predefined set of conference rooms given as a list of room IDs [roomA, roomB, …] . It should have a method like sched…

Startup Startup Coding Interview Question: Insert Delete GetRandom in O(1)

We are designing a system for officers to check out a body worn camera from a pool of available cameras. We need an object to store a collection of came…

Startup Startup / VO Interview Question: Generate All Binary Strings Without Adjacent 0s

Please implement a Python function that takes a non-negative integer argument n as input, and it produces a list of all binary strings with length n suc…

Startup Startup SQL Interview Questions: Application Tables and Joins

There are 3 tables in the database. Application : stores customer application information. AppStatusDesc : lookup table for application status. ProductD…

Startup Startup OA Interview Question: Track Customer Visits and First-Time Visitors

Track Customer Visits and First-Time Visitors Millions of customers visit our website every day. For each customer, we have a unique identifier that sta…

Startup Startup / VO Online Assessment Interview Problem: Dict Bot

Dict Bot We are building a small chat bot that can receive messages and keep track of what everyone has said. Given a sequence of messages, implement a…

Startup Startup VO Interview Coding Question: Serialize and Deserialize Binary Tree

Given a binary tree, create two functions: one that serializes the binary tree into a string and one that deserializes a serialized string back into a b…

Startup Startup VO Coding Interview Question: Schedule Calls with Cooldown Across Two Lanes

You are given a list of calls, where each call has a type such as search , tts , or db.lookup . Each call type has a cooldown period. There are m time s…

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