Roblox Interview Guide

Rearrange the characters in a given string such that no two adjacent characters are the same. If such an arrangement is possible, return it; otherwise, return an empty string.

You're given a list of tasks to run, each requiring one unit of time to complete. Determine the shortest time needed to execute all tasks, considering a cooling period after each task execution.

You're given a row of seats, some occupied and some empty. Find the best seat to maximize the distance to the nearest person.

Design a hit counter to track the number of hits recorded in the past 5 minutes. Implement methods to record a hit and retrieve the total hits in the past 5 minutes.

Simulate a browser's history navigation. Implement functionalities to visit URLs, go back in history, and go forward.

You are given a collection of intervals. Merge all overlapping intervals into a single interval and return the result.

Given a sequence of words and a line width, format the text to fit within the specified width. You must justify the text, distributing extra spaces evenly between words.

You're given a list where each person indicates the size of the group they need to be in. Your task is to form groups according to these sizes and return a list of these groups.

Find the number of subarrays within a given array that contain exactly k odd numbers. A subarray is considered "nice" if it meets this condition.

You're given a linked list where each node contains a 0 or 1, representing a binary number. Convert this binary representation into its equivalent integer value.

Find the substring that occurs the most within a given string, subject to length and character limit constraints. Return the maximum number of times this substring appears.

You are given positions of balls on a line. Maximize the minimum distance between any two balls when placing a given number of balls on these positions.

You're given a list of domain names with visit counts. Calculate and return the visit counts for each subdomain.

Convert a non-negative integer into its English word representation. For example, 12345 should be converted to 'Twelve Thousand Three Hundred Forty Five'.

Determine if a string containing parentheses is valid. A valid string has matching and properly nested opening and closing parentheses.

Design a data structure that efficiently stores a set of strings and allows for prefix-based searches. Implement methods to insert strings, search for complete words, and check if any word starts with a given prefix.

You are given a square matrix representing an image. Rotate the image by 90 degrees clockwise in-place.

Simulate a box tilting to the right, causing stones to fall until they hit obstacles or the floor. Re-arrange the characters in a given grid to reflect the resulting state of the box.

Imagine people entering and leaving a flower garden at different times. Given the arrival and departure times for each person, and the bloom period for each flower, determine how many flowers are in full bloom when each person is in the garden.

Given an array representing the height of bars, calculate how much water can be trapped between them after rain. Think about finding the maximum height to the left and right of each bar.