Codenation Interview Experience (2020 Graduate)
Question Details
Codenation offers one of the best processes, testing the overall knowledge of the candidate. Interviewing with Codenation is always an experience to remember. I was interv...
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Codenation offers one of the best processes, testing the overall knowledge of the candidate. Interviewing with Codenation is always an experience to remember. I was interviewed for the SDE Role.
Round 1 Coding Round Codenation hires through CodeAgon, the yearly online coding event. It comprises of a good set of problems. There were 6 problems in the contest. I was able to solve 5 problems to proceed further. It is one of the best coding rounds I have ever given.
Round 2 Resume Discussion (30 Minutes) Codenation likes to call this as Round 0. They check whether the person is good enough to go ahead with the further interview process or not. This round involves detailed discussion of your resume and projects you have done. You must be prepared for any kind of question on anything written in your resume. Most people are screened out in this round itself.
Round 3 Data Structures and Algorithms round (75 Minutes) In this round, you are given 2 problems to solve. You clear this round if you are able to solve both the problems. Question 1: I do not remember this. It was based on arrays and I was able to solve this. Question 2: The problem was similar to Painter's Partition problem. It was not same but used a similar approach. Link: https://www.geeksforgeeks.org/dsa/painters-partition-problem/
Round 4 Discussion Round (75 Minutes) This round involved a detailed discussion of the project. I was asked to discuss my best projects, internship work, and everything mentioned in my resume. I was cross-questioned on each and every small detail of the project. So be prepared to answer anything on your project. For each project you have mentioned, you must be clear about: 1. The aim of the project. 2. How the project is better than the existing work done in that field? 3. How can you improve the work further?
Round 5 Director Round (30 Minutes) This was the best experience of the entire process. This round was taken by the Director of Engineering. It was a sort of abstract problem-solving round in which he wanted me to think about different use cases for the given problem. My problem was: You have design a system that searches the web for user-uploaded images and finds the images that are best for the website of McDonald's. He wanted me to identify features that I will look in the image. My answer was to look for following things in the image: 1. The logo of McDonald's. 2. Try to include people from each age group in order to depict that McDonald's is a place for people of all ages. 3. Try to include images depicting staff serving the people. 4. Images depicting pleasant ambience/surroundings. 5. Images depicting Happy people. He asked me to discuss implementation of each feature. Next, he asked me to discuss a project which was not discussed in the rounds before.
Verdict Selected! Additional Comments: This was my 5th attempt for Codenation. It is one of the most difficult process. I was not able to clear the coding round 2 times and was not able to reach Round 3 for the rest of the times. But it is always a good experience.
About This Question
This is a reported interview question from a codenation interview for a swe role (intern level) during the recruiter round reported in 2025.
It covers the following topics: Arrays, Networking .
Difficulty rating: Hard
Topics
More Codenation Interview Questions
About Codenation Interview Reports
This question was reported by a candidate who interviewed at Codenation. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.
Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Codenation are the higher-signal extractions to take from this report.
For broader preparation context, the Codenation interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.
How To Practice This Type of Question
Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.
Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Codenation reports consistently are the ones worth investing in; one-off niche problems are not.
During Your Codenation Round
Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.
The single most predictive failure mode in Codenation reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.