Startup - VO Prep

Startup Startup VO Coding Interview Question: Word Break Sentence Generation with Glossary Entries

Given a text string and a glossary, insert spaces to generate all possible sentences where every segment matches a glossary entry. In Part 2, both the i…

Startup Startup Coding Interview / OA: Trending Tracker Top-K Retrieval

Trending Tracker: Top-K Retrieval You are building a trending tracker. You receive a stream of operations: apply(“inc”, key, delta) — increase the key’s…

Startup Startup VO Interview Coding Question: Implement get_available_slots(raw_slots)

Part 1 – Parse and Validate: Remove slots with missing fields, invalid ISO timestamps, or durations other than exactly 10 minutes. Part 2 – Aggregate: G…

Startup Startup VO Interview Coding Question: Maximum Number of Envelopes That Can Be Nested

Given a list of envelopes [width, height] , find the maximum number of envelopes that can be nested inside each other. An envelope can go inside another…

Startup Startup / VO Interview Questions: Components, Deadlock, Mutex, Singleton, String and Number Basics

What is deadlock? How do you avoid it? Discuss class components of customer, orders, and discount related to customer order history and order content. W…

Startup Startup / VO Interview Question Analysis: Implement a Reusable DB Connection Pool

Implement a reusable DB connection pool. Design a component that manages a fixed set of database connections and allows clients to acquire and release t…

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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