Mathworks Interview Questions
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Design a multi-tenant course purchase and delivery system
Design a multi-tenant online course purchasing and delivery system with the following requirements. Domain model / requirements - There are multiple C...
Minimize reduction cost and validate equal-sum pairs
You are given two independent coding tasks. Task 1: Minimum total cost to reduce an array You are given an integer array arr of length n. You may repe...
Maximize minimum value after k decrements
You are given an integer array vulnerabilities of length n, where vulnerabilities[i] is the initial security score of server i. You must perform exact...
Compute intersections for each segment
You are given n segments on a number line. Segment i is [startsAt[i], endsAt[i]] (inclusive), with 1 ≤ n ≤ 1e5 and 1 ≤ startsAt[i] ≤ endsAt[i] ≤ 1e9. ...
Answer SDET internship behavioral interview questions
You are interviewing for an SDET Intern role. Prepare structured answers for the following behavioral prompts: 1. Tell me about your most recent inter...
Explain why EDG and why you fit
Prompt You have 4 minutes of total time per question to prepare and answer. You may re-record / answer each question up to 2 times. Answer the followi...
Find shortest path using BFS
Given an m×n grid grid where grid[r][c] = 0 represents an empty cell and 1 represents a wall, a start cell (sr, sc), and a target cell (tr, tc), you m...
Deduce position from logic clues
Constraint-Satisfaction on a 2D Grid with Relational Clues Context You are given a rectangular grid with R rows and C columns. A set of named entities...
Calculate tiered cost and break-even
Tiered Pricing and Shipping Cost Function You are ordering q units from a vendor with the following pricing: - Fixed setup fee per order: $500 - Unit ...
Compute urn-draw probabilities and expectations
Urn Drawing Probabilities (Without Replacement) You have an urn with 12 balls: 5 red (R) and 7 blue (B). You draw two balls uniformly at random withou...
Compute probability of drawing reds
Probability of Drawing at Least Two Red Balls Problem A bag contains 6 red balls and 4 blue balls. Three balls are drawn uniformly at random without r...
Maximize disjoint k-sum pairs
You are given an integer array nums and an integer k. In one operation you may remove two indices i < j if nums[i] + nums[j] == k; each index can be u...
Implement BFS shortest paths with reconstruction
Given an unweighted graph with n vertices and m edges represented as an adjacency list, implement breadth-first search (BFS) from a source vertex s to...
Deduce row order from logic clues
Logic Ordering Puzzle: Four Coworkers in a Row Context Four coworkers—A, B, C, and D—are standing in a single row, left to right, facing north. Positi...
Decide transform via one-to-one mapping
You are given two strings s and t of equal length over the lowercase English alphabet. In one step, you may pick any character x and replace all its o...
Determine string transform via end-append moves
Given two strings s and t of equal length over lowercase English letters, in one move you may delete any character from s and append it to the end of ...
Count interval intersections
Question For a list of n segments, where each segment i has start[i] and end[i], compute for every segment the count of other segments that intersect ...
Maximize operations by removing target-sum pairs
Given an integer array nums and an integer T, in one operation you may remove two elements whose sum equals T. Return the maximum number of operations...
How to maximize rewards with exactly k tasks
You are assigning n independent tasks to two interns. - Each task must be done by exactly one intern. - If intern 1 does task i, you earn reward1[i] p...
Calculate cost from orders with SQL
You have two tables: orders(order_id INT, user_id INT, order_date DATE, quantity INT, unit_price DECIMAL, coupon_code VARCHAR) and coupons(code VARCHA...