Roblox LeetCode Interview Questions

Practice 56 coding problems currently tagged to Roblox. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

8 Easy

35 Medium

13 Hard

Top Topics at Roblox

Array Hash Table String Matrix Sorting

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Problem	DifficultyDiff	Frequency	Topics	Action
Candy Crush 100%	MediumM	100%	Array Two Pointers+2	Solve→
Reorganize String 92.2%	MediumM	92.2%	Hash Table String+4	Solve→
Number of Ways to Wear Different Hats to Each Other 91.5%	HardH	91.5%	Array Dynamic Programming+5	Solve→
Text Justification 87.7%	HardH	87.7%	Array String+1	Solve→
Maximize Distance to Closest Person 85%	MediumM	85%	Array	Solve→
Task Scheduler 84%	MediumM	84%	Array Hash Table+4	Solve→
Course Schedule II 82.9%	MediumM	82.9%	Depth-First Search Breadth-First Search+2	Solve→
Design Hit Counter 76.7%	MediumM	76.7%	Array Binary Search+3	Solve→
Integer to English Words 71.8%	HardH	71.8%	Math String+1	Solve→
Design Search Autocomplete System 71.8%	HardH	71.8%	String Depth-First Search+5	Solve→
Rotate Image 67.7%	MediumM	67.7%	Array Math+1	Solve→
Count Number of Nice Subarrays 67.7%	MediumM	67.7%	Array Hash Table+3	Solve→
Group the People Given the Group Size They Belong To 67.7%	MediumM	67.7%	Array Hash Table+1	Solve→
Magnetic Force Between Two Balls 65.3%	MediumM	65.3%	Array Binary Search+1	Solve→
Subdomain Visit Count 65.3%	MediumM	65.3%	Array Hash Table+2	Solve→
Convert Binary Number in a Linked List to Integer 65.3%	EasyE	65.3%	Linked List Math	Solve→
Students and Examinations 65.3%	EasyE	65.3%	Database	Solve→
Maximum Number of Occurrences of a Substring 65.3%	MediumM	65.3%	Hash Table String+1	Solve→
Number of Trusted Contacts of a Customer 65.3%	MediumM	65.3%	Database	Solve→
Minimum Operations to Write the Letter Y on a Grid 65.3%	MediumM	65.3%	Array Hash Table+2	Solve→
Logger Rate Limiter 65.3%	EasyE	65.3%	Hash Table Design+1	Solve→
Valid Parentheses 62.6%	EasyE	62.6%	String Stack+1	Solve→
Implement Trie (Prefix Tree) 62.6%	MediumM	62.6%	Hash Table String+2	Solve→
Minimum Absolute Difference Between Elements With Constraint 62.6%	MediumM	62.6%	Array Binary Search+1	Solve→
Course Schedule 62.6%	MediumM	62.6%	Depth-First Search Breadth-First Search+3	Solve→

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Number of Black Blocks 62.6%	MediumM	62.6%	Array Hash Table+1	Solve→
Find the Length of the Longest Common Prefix 59.5%	MediumM	59.5%	Array Hash Table+2	Solve→
Merge Intervals 55.8%	MediumM	55.8%	Array Sorting+1	Solve→
Brightest Position on Street 55.8%	MediumM	55.8%	Array Sorting+2	Solve→
Block Placement Queries 55.8%	HardH	55.8%	Array Binary Search+3	Solve→
Subarrays with K Different Integers 55.8%	HardH	55.8%	Array Hash Table+2	Solve→
Number of Adjacent Elements With the Same Color 55.8%	MediumM	55.8%	Array	Solve→
Rotating the Box 55.8%	MediumM	55.8%	Array Two Pointers+1	Solve→
Number of Flowers in Full Bloom 51.3%	HardH	51.3%	Array Hash Table+4	Solve→
Largest Rectangle in Histogram 51.3%	HardH	51.3%	Array Stack+2	Solve→
Spiral Matrix 51.3%	MediumM	51.3%	Array Matrix+1	Solve→
Two Sum 51.3%	EasyE	51.3%	Array Hash Table	Solve→
Trapping Rain Water 51.3%	HardH	51.3%	Array Two Pointers+3	Solve→
Number of Recent Calls 51.3%	EasyE	51.3%	Design Queue+1	Solve→
Longest Common Prefix 45.5%	EasyE	45.5%	Array String+1	Solve→
Count the Number of Good Subarrays 45.5%	MediumM	45.5%	Array Hash Table+1	Solve→
Length of Longest V-Shaped Diagonal Segment 45.5%	HardH	45.5%	Array Dynamic Programming+2	Solve→
Design Browser History 37.4%	MediumM	37.4%	Array Linked List+4	Solve→
Minimum Number of Frogs Croaking 37.4%	MediumM	37.4%	String Counting	Solve→
Employee Free Time 37.4%	HardH	37.4%	Array Sweep Line+2	Solve→
Rotting Oranges 37.4%	MediumM	37.4%	Array Breadth-First Search+1	Solve→
Longest Substring Without Repeating Characters 37.4%	MediumM	37.4%	Hash Table String+1	Solve→
Image Smoother 37.4%	EasyE	37.4%	Array Matrix	Solve→
Longest Consecutive Sequence 37.4%	MediumM	37.4%	Array Hash Table+1	Solve→
Basic Calculator IV 37.4%	HardH	37.4%	Hash Table Math+3	Solve→

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Restore the Array From Adjacent Pairs 37.4%	MediumM	37.4%	Array Hash Table+1	Solve→
Count Nice Pairs in an Array 37.4%	MediumM	37.4%	Array Hash Table+2	Solve→
Insert Delete GetRandom O(1) 37.4%	MediumM	37.4%	Array Hash Table+3	Solve→
Random Pick with Weight 37.4%	MediumM	37.4%	Array Math+3	Solve→
Design Memory Allocator 37.4%	MediumM	37.4%	Array Hash Table+2	Solve→
Sliding Window Maximum 37.4%	HardH	37.4%	Array Queue+4	Solve→

Explore company practice sets with a similar number of tagged coding questions.

Frequently Asked Questions

What LeetCode problems are tagged to Roblox?

Our current Roblox practice dataset contains 56 tagged coding problems, including Candy Crush, Reorganize String, Number of Ways to Wear Different Hats to Each Other. The difficulty breakdown is 8 Easy, 35 Medium, and 13 Hard problems.

How should I prepare for a Roblox coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Roblox interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.

What is the difficulty level of Roblox coding interviews?

Based on our data, Roblox interviews include 8 Easy (14%), 35 Medium (63%), and 13 Hard (23%) problems.

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Roblox LeetCode Interview Questions

Practice 56 coding problems currently tagged to Roblox. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

8 Easy

35 Medium

13 Hard

Top Topics at Roblox

Array Hash Table String Matrix Sorting

Ace your Roblox interview with AI

Get real-time AI assistance during your actual interview. Invisible to screensharing.

Start Free Trial

Problem	DifficultyDiff	Frequency	Topics	Action
Candy Crush 100%	MediumM	100%	Array Two Pointers+2	Solve→
Reorganize String 92.2%	MediumM	92.2%	Hash Table String+4	Solve→
Number of Ways to Wear Different Hats to Each Other 91.5%	HardH	91.5%	Array Dynamic Programming+5	Solve→
Text Justification 87.7%	HardH	87.7%	Array String+1	Solve→
Maximize Distance to Closest Person 85%	MediumM	85%	Array	Solve→
Task Scheduler 84%	MediumM	84%	Array Hash Table+4	Solve→
Course Schedule II 82.9%	MediumM	82.9%	Depth-First Search Breadth-First Search+2	Solve→
Design Hit Counter 76.7%	MediumM	76.7%	Array Binary Search+3	Solve→
Integer to English Words 71.8%	HardH	71.8%	Math String+1	Solve→
Design Search Autocomplete System 71.8%	HardH	71.8%	String Depth-First Search+5	Solve→
Rotate Image 67.7%	MediumM	67.7%	Array Math+1	Solve→
Count Number of Nice Subarrays 67.7%	MediumM	67.7%	Array Hash Table+3	Solve→
Group the People Given the Group Size They Belong To 67.7%	MediumM	67.7%	Array Hash Table+1	Solve→
Magnetic Force Between Two Balls 65.3%	MediumM	65.3%	Array Binary Search+1	Solve→
Subdomain Visit Count 65.3%	MediumM	65.3%	Array Hash Table+2	Solve→
Convert Binary Number in a Linked List to Integer 65.3%	EasyE	65.3%	Linked List Math	Solve→
Students and Examinations 65.3%	EasyE	65.3%	Database	Solve→
Maximum Number of Occurrences of a Substring 65.3%	MediumM	65.3%	Hash Table String+1	Solve→
Number of Trusted Contacts of a Customer 65.3%	MediumM	65.3%	Database	Solve→
Minimum Operations to Write the Letter Y on a Grid 65.3%	MediumM	65.3%	Array Hash Table+2	Solve→
Logger Rate Limiter 65.3%	EasyE	65.3%	Hash Table Design+1	Solve→
Valid Parentheses 62.6%	EasyE	62.6%	String Stack+1	Solve→
Implement Trie (Prefix Tree) 62.6%	MediumM	62.6%	Hash Table String+2	Solve→
Minimum Absolute Difference Between Elements With Constraint 62.6%	MediumM	62.6%	Array Binary Search+1	Solve→
Course Schedule 62.6%	MediumM	62.6%	Depth-First Search Breadth-First Search+3	Solve→

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Number of Black Blocks 62.6%	MediumM	62.6%	Array Hash Table+1	Solve→
Find the Length of the Longest Common Prefix 59.5%	MediumM	59.5%	Array Hash Table+2	Solve→
Merge Intervals 55.8%	MediumM	55.8%	Array Sorting+1	Solve→
Brightest Position on Street 55.8%	MediumM	55.8%	Array Sorting+2	Solve→
Block Placement Queries 55.8%	HardH	55.8%	Array Binary Search+3	Solve→
Subarrays with K Different Integers 55.8%	HardH	55.8%	Array Hash Table+2	Solve→
Number of Adjacent Elements With the Same Color 55.8%	MediumM	55.8%	Array	Solve→
Rotating the Box 55.8%	MediumM	55.8%	Array Two Pointers+1	Solve→
Number of Flowers in Full Bloom 51.3%	HardH	51.3%	Array Hash Table+4	Solve→
Largest Rectangle in Histogram 51.3%	HardH	51.3%	Array Stack+2	Solve→
Spiral Matrix 51.3%	MediumM	51.3%	Array Matrix+1	Solve→
Two Sum 51.3%	EasyE	51.3%	Array Hash Table	Solve→
Trapping Rain Water 51.3%	HardH	51.3%	Array Two Pointers+3	Solve→
Number of Recent Calls 51.3%	EasyE	51.3%	Design Queue+1	Solve→
Longest Common Prefix 45.5%	EasyE	45.5%	Array String+1	Solve→
Count the Number of Good Subarrays 45.5%	MediumM	45.5%	Array Hash Table+1	Solve→
Length of Longest V-Shaped Diagonal Segment 45.5%	HardH	45.5%	Array Dynamic Programming+2	Solve→
Design Browser History 37.4%	MediumM	37.4%	Array Linked List+4	Solve→
Minimum Number of Frogs Croaking 37.4%	MediumM	37.4%	String Counting	Solve→
Employee Free Time 37.4%	HardH	37.4%	Array Sweep Line+2	Solve→
Rotting Oranges 37.4%	MediumM	37.4%	Array Breadth-First Search+1	Solve→
Longest Substring Without Repeating Characters 37.4%	MediumM	37.4%	Hash Table String+1	Solve→
Image Smoother 37.4%	EasyE	37.4%	Array Matrix	Solve→
Longest Consecutive Sequence 37.4%	MediumM	37.4%	Array Hash Table+1	Solve→
Basic Calculator IV 37.4%	HardH	37.4%	Hash Table Math+3	Solve→

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Restore the Array From Adjacent Pairs 37.4%	MediumM	37.4%	Array Hash Table+1	Solve→
Count Nice Pairs in an Array 37.4%	MediumM	37.4%	Array Hash Table+2	Solve→
Insert Delete GetRandom O(1) 37.4%	MediumM	37.4%	Array Hash Table+3	Solve→
Random Pick with Weight 37.4%	MediumM	37.4%	Array Math+3	Solve→
Design Memory Allocator 37.4%	MediumM	37.4%	Array Hash Table+2	Solve→
Sliding Window Maximum 37.4%	HardH	37.4%	Array Queue+4	Solve→