How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

What difficulty level is this interview question?

This is a Medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at DRW.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at DRW during technical interviews.

Solve movie ratings, array, release scheduler

Last updated: Mar 29, 2026

Quick Overview

This question evaluates algorithm design and data structure competency, covering greedy and array-manipulation techniques for constrained distribution, use of tree-based structures to optimize time complexity in array operations, and sorting/merging logic for reconciling version release lists.

DRW

Aug 4, 2025, 10:55 AM

Data Scientist

Onsite

Coding & Algorithms

Question

LeetCode 135. Candy – Distribute the minimum number of candies (stars) so that each movie gets at least one star and any movie with a higher rating than an adjacent movie gets more stars than that neighbor. Array Challenge – Optimize an algorithm whose current time-complexity limits performance; design a solution that leverages an appropriate tree data structure to achieve faster operations. Update Release Scheduler – Given two lists of version release dates, sort each list and then compare them to produce the combined chronological release schedule.

https://leetcode.com/problems/candy/description/

Comments (0)

Loading comments...

Browse More Questions

More Coding & Algorithms•More DRW•More Data Scientist•DRW Data Scientist•DRW Coding & Algorithms•Data Scientist Coding & Algorithms