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 EY interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
E
EY Coding Interview Questions
3 problems · 2 Easy, 1 Medium, 0 Hard · Ranked #307 of 458
Difficulty breakdown
2 Easy
67% · avg 23%
1 Medium
33% · avg 59%
0 Hard
0% · avg 18%
Top topics
array
33.3%
hash-map
33.3%21.1x
math
33.3%2.6x
dynamic-programming
33.3%1.7x
recursion
33.3%7.4x
memoization
33.3%20.6x
Interview profile
Based on 3 reported problems, EY interviews are easier than average - only 0% Hard compared to 18% across all companies.
The most common topics are array (33.3%), hash-map (33.3%), math (33.3%), dynamic-programming (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 3 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Two Sum Given an array of integers nums and an integer target, return the indices of the two numbers that add up to target. | Easy | Very Likely | arrayhash-map | Solve |
Fibonacci Number The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, startin... | Easy | Very Likely | mathdynamic-programmingrecursion | Solve |
Longest Happy String A string s is called happy if it satisfies the following conditions: | Medium | Very Likely | stringgreedyheap-priority-queue | Solve |
Two Sum
SolveGiven an array of integers nums and an integer target, return the indices of the two numbers that add up to target.
EasyVery Likely
arrayhash-map
Fibonacci Number
SolveThe Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, startin...
EasyVery Likely
mathdynamic-programmingrecursion
Longest Happy String
SolveA string s is called happy if it satisfies the following conditions:
MediumVery Likely
stringgreedyheap-priority-queue
Preparing for your EY coding interview
EY interviews focus heavily on array, hash-map, math 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. EY 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.
Looking for more companies? Browse all 458 companies in our directory, or sharpen your fundamentals with our free data structure visualizers and AI-powered DSA tutor.
Frequently Asked Questions
What coding problems does EY ask in interviews?add
EY has been reported to ask 3 distinct coding problems. The most common topics are array, hash-map, math. 2 are Easy difficulty, 1 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
How hard are EY coding interviews?add
Based on 3 reported problems, EY interviews are easier than average - only 0% Hard compared to 18% across all companies. 33% 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 EY coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: array, hash-map, math. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
Other companies to explore
Ready to ace your EY interview?
Simulate a real EY coding interview with an AI interviewer. Get a scorecard with specific feedback on your problem-solving, code quality, and communication.
Simulate a EY interview with AIarrow_forward