OA - VO Prep - Page 5

OA Two Sigma OA Interview Problem: IPO Share Allocation

1. IPO share allocation An initial public offering (IPO) refers to the process of offering shares of a private corporation to the public in a new stock…

OA Rokos Capital OA Interview Question: Largest Square from Two Wooden Sticks

There are two wooden sticks of lengths A and B respectively. Each of them can be cut into shorter sticks of integer lengths. Our goal is to construct th…

Digital+ibm IBM OA Coding Interview: Filter Words by Letters

Implement the function filter_words(words, letters) which takes as input: a list of strings words , with the words to filter a string letters , used to…

OA TikTok OA Interview Question: Adding Connections Graph / Union-Find

6. Adding Connections In a TikTok-like social media platform, users are either verified or unverified. Unverified users cannot interact with each other…

OA Point OA Interview Problem: Python Book Popularity Tracker

Implement a Python application for managing a bookstore’s inventory. The application should allow adding books, finding highest-rated books, and recomme…

OA Uber OA Interview Question: Resource Cycle Simulation

Each cycle, one of the three events happens: Option 1: If there are at least conversionRate P resources, then the last conversionRate P resources are re…

Deloitte Deloitte OA Interview Question: Parse a JSON String with Specific Error Handling

Write a function that parses a JSON string. The function should handle one of the three errors below: Invalid JSON: The input string is not valid JSON….

Epic Epic OA Interview Question: Broken Labeler

You need to label a large number of files from 1 to N, but one number key on your labeler is broken. Write a program that prompts the user for N and the…

BBC BBC OA Interview Question: Classify Customer Feedback

Classify Customer Feedback Given a dataset of customer feedback classified as Positive or Negative, build a deep neural network to classify feedback acc…

OA QRT OA Interview Question: Weather Station Paginated API Filtering

Use the HTTP GET method to retrieve information from a database of weather records. Query https://jsonmock.hackerrank.com/api/weather/search?name={keywo…

OA Pinterest OA – Implement Naive Bayes Classifier (Machine Learning Coding Assessment)

Question 1 You are asked to implement parts of a Naive Bayes classification algorithm from scratch, without using any libraries except numpy and math. Naive Bayes classification is based on Bayes’Theorem, predicting the probability that a set of data points belongs to one of several classes. A full Naive Bayes classifier consists of four major steps: You are given:…

coinbase Coinbase OA: In-Memory DB – Full Solution & Examples

Level 1 The basic level of the in-memory database contains records. Each record can be accessed with a unique identifier key of string type. A record may contain several field – value pairs, both of which are of string type. Function Definitions Examples Queries Explanations set(“A”, “B”, “E”) database state: {“A”: {“B”:“E”}} set(“A”, “C”, “F”) database state: {“A”: {“C”:“F”,“B”:“E”}}…

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