# Roblox Interview Questions

Roblox is an online game platform and game creation system developed by Roblox Corporation that allows users to program games and play games created by other users. Created by David Baszucki and Erik Cassel in 2004 and released in 2006, the platform hosts user-created games of multiple genres coded in the programming language Lua. For most of Roblox‘s history, it was relatively small, both as a platform and as a company. Roblox began to grow rapidly in the second half of the 2010s, and this growth has been accelerated by the COVID-19 pandemic .

It has got a 4.3* rating on Glassdoor and is considered one of the best product-based companies. It is highly regarded for its work-life balance.

They provide good training as well which will be beneficial in future too. You can practice the below questions collected from Roblox Interview Experience for the interview. We have collected past frequently asked questions from Roblox Interview Experience for your reference.

Categories of Questions

## Roblox Array Questions

Question 1. Maximum Side Length of a Square with Sum Less than or Equal to Threshold LeetCode Solution Problem Statement “Maximum Side Length of a Square with Sum Less than or Equal to Threshold,” says that  a m x n matrix mat and an integer threshold are given, return the maximum side-length of a square with a sum less than or equal to threshold or return 0 if there is no such square. Example 1: Input: ...

Question 2. Sqrt (or Square Root) Decomposition Technique You are given query of range an integer array. You will be asked to determine the sum of all the numbers that come in the range of given query. The query given is of two types, that are – Update: (index, value) is given as a query, where you need ...

Question 3. Maximum Length of Repeated Subarray In problem “Maximum Length of Repeated Subarray” we have given two arrays Array 1 and Array 2, your task is to find the maximum length of the sub-array that appears in both the arrays. Example Input: [1,2,3,2,1] [3,2,1,4,7] Output: 3 Explanation: Because the maximum length of sub-array is 3 and ...

Question 4. Difference between highest and least frequencies in an array The problem “Difference between highest and least frequencies in an array” states that suppose that you have an integer array. The problem statement asks to find out the maximum difference between the highest frequency and lowest frequency of two distinct numbers in an array. Example arr[] = {1, 2, 3, ...

Question 5. Pair with given product The problem “Pair with given product” states that you are given an integer array and a number “x”. Determine, whether an array consists of a pair of which product equals ‘x’ exist in the given input array. Example [2,30,12,5] x = 10 Yes, it has Product Pair Explanation Here 2 ...

Question 6. Mean of range in array Problem Statement The problem “Mean of range in array” states that you are given an integer array and q number of queries. Each query contains the left and right as a range. The problem statement asks to find out the floor mean value of all the integers that come in ...

Question 7. Rearrange array such that even index elements are smaller and odd index elements are greater Problem Statement You have given an array of integers. The problem “Rearrange array such that even index elements are smaller and odd index elements are greater” asks to rearrange the array in such a manner that the even index elements should be smaller than the odd index elements in a ...

Question 8. Count pairs from two sorted arrays whose sum is equal to a given value x Problem Statement “Count pairs from two sorted arrays whose sum is equal to a given value x” problem states that you are given two sorted arrays of integers and an integer value called sum. The problem statement asks to find out the total number of pair which sums up to ...

## Roblox String Questions

Question 9. Roman to Integer Leetcode Solution In the problem “Roman to Integer”, we are given a string representing some positive integer in its Roman numeral form. Roman numerals are represented by 7 characters that can be converted to integers using the following table: Note: The integer value of the given roman numeral will not exceed or ...

Question 10. Rearrange a binary string as alternate x and y occurrences Problem Statement Suppose you are given a binary string, and two numbers x and y. The string consists of 0s and 1s only. The problem “Rearrange a binary string as alternate x and y occurrences” asks to rearrange the string such that the 0 comes x times ⇒ 1 comes ...

## Roblox Other Questions

Question 11. Find Peak Element LeetCode Solution Problem Statement Find Peak Element LeetCode Solution says that – A peak element is an element that is strictly greater than its neighbors. Given a 0-indexed integer array nums, find a peak element, and return its index. If the array contains multiple peaks, return the index to any of the peaks. You may imagine ...

Question 12. LRU Cache Leetcode Solution Problem Statement The LRU Cache LeetCode Solution – “LRU Cache” asks you to design a data structure that follows Least Recently Used (LRU) Cache We need to implement LRUCache class that has the following functions: LRUCache(int capacity): Initializes the LRU cache with positive size capacity. int get(int key): Return the value ...

Question 13. Maximum Number of Occurrences of a Substring Leetcode Solution Problem Statement : Maximum Number of Occurrences of a Substring Leetcode Solution – Given a string s, return the maximum number of occurrences of any substring under the following rules: The number of unique characters in the substring must be less than or equal to maxLetters. The substring size must be between minSize and maxSize inclusive. Example ...

Question 14. Valid Sudoku Valid Sudoku is a problem in which we have given a 9*9  Sudoku board. We need to find the given Sudoku is valid or not on the basis of the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digits 1-9 without repetition. Every of the 9 3x3 sub-boxes ...

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