Karat - VO Prep

Karat Karat / VO Coding Interview Problem: Obstacle Course Run Collection

We are writing software to collect and manage data on how fast racers can complete obstacle courses. An obstacle course is a series of difficult physica…

Karat Karat / VO Coding Interview Problem: Snowy Mountain Crossing

You are planning a trek across a snowy mountain. On the mountain, it snows in the morning, the snow melts with the sun in the afternoon, and in the even…

Karat Karat / VO Coding Interview Problem: Badge Access Log Missing Entry or Exit Records

We are working on a security system for a badged-access room in our company’s building. Given an ordered list of employees who used their badge to enter…

Karat Karat / VO Coding Interview OA: Log File Log Parsing and Speeding Detection

We are writing software to analyze logs for toll booths on a highway. This highway is a divided highway with limited access; the only way on to or off o…

Karat Karat VO Interview Coding Question: Shopping List Department Visits

Given an unsorted list of products with their departments and a shopping list, return the time saved in terms of the number of department visits elimina…

Karat Karat VO Interview Coding Question: Income Calculator by Year

Task: Implement the following problem Write a unit test for the implementation We want to implement an income calculator that, given a compensation pack…

Karat Karat / VO OA Interview Question: Find Shared Courses for Every Pair of Students

You are a developer for a university. Your current project is to develop a system for students to find courses they share with friends. The university h…

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