How often are these problems asked?
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Unity interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
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Unity Coding Interview Questions
4 problems · 0 Easy, 4 Medium, 0 Hard · Ranked #277 of 458
Difficulty breakdown
0 Easy
0% · avg 23%
4 Medium
100% · avg 59%
0 Hard
0% · avg 18%
Top topics
array
75%
math
75%5.9x
number-theory
25%48.8x
prefix-sum
25%7.5x
hash-table
25%
design
25%4.3x
Interview profile
Based on 4 reported problems, Unity interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (100%) of questions are Medium difficulty, which is typical for companies that want to see solid fundamentals without excessive trick questions.
Compared to the industry average, Unity puts unusual emphasis on math (75% of problems, 5.9x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (75%), math (75%), number-theory (25%), prefix-sum (25%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 4 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Number of Subarrays With LCM Equal to K Given an integer array nums and an integer k, return the number of subarrays of nums where the least common multiple of the subarray's elements is k. | Medium | Very Likely | arraymathnumber-theory | Solve |
Product of Array Except Self Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. | Medium | Very Likely | arrayprefix-sum | Solve |
Insert Delete GetRandom O(1) Implement the RandomizedSet class: | Medium | Very Likely | arrayhash-tablemath | Solve |
Remove Colored Pieces if Both Neighbors are the Same Color There are n pieces arranged in a line, and each piece is colored either by 'A' or by 'B'. You are given a string colors of length n where colors[i] is the color... | Medium | Very Likely | mathstringgreedy | Solve |
Number of Subarrays With LCM Equal to K
SolveGiven an integer array nums and an integer k, return the number of subarrays of nums where the least common multiple of the subarray's elements is k.
MediumVery Likely
arraymathnumber-theory
Product of Array Except Self
SolveGiven an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i].
MediumVery Likely
arrayprefix-sum
Insert Delete GetRandom O(1)
SolveImplement the RandomizedSet class:
MediumVery Likely
arrayhash-tablemath
Remove Colored Pieces if Both Neighbors are the Same Color
SolveThere are n pieces arranged in a line, and each piece is colored either by 'A' or by 'B'. You are given a string colors of length n where colors[i] is the color...
MediumVery Likely
mathstringgreedy
Preparing for your Unity coding interview
Unity interviews focus heavily on array, math, number-theory problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. Unity interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
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Frequently Asked Questions
What coding problems does Unity ask in interviews?add
Unity has been reported to ask 4 distinct coding problems. The most common topics are array, math, number-theory. 0 are Easy difficulty, 4 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
How hard are Unity coding interviews?add
Based on 4 reported problems, Unity interviews are easier than average - only 0% Hard compared to 18% across all companies. 100% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
How should I prepare for a Unity coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: array, math, number-theory. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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