def two_sum(nums, target):
num_map = {}
for i, num in enumerate(nums):
complement = target - num
if complement in num_map:
return [num_map[complement], i]
num_map[num] = i
return []- 365 carefully curated coding problems with curriculum
- 365 detailed solutions with step-by-step explanations
- Interactive code editor with real-time feedback
- Comprehensive test cases for thorough practice
- Detailed performance analytics
- Mock interviews with real FAANG engineers
What We Offer
Everything you need to ace your coding interviews, from curated problems to real-time feedback and expert guidance.
365 Curated Coding Problems
Tackle a full year's worth of hand-picked problems that cover every major topic and difficulty level.
Step-by-step Solutions
Every problem comes with a detailed, easy-to-follow solution so you can learn the right approach and reasoning.
Real-time Code Editor
Write, run, and test your code instantly in our interactive editor—no setup required.
Roadmap & Curriculum
Curated 12 week curriculum of problems to help you learn the most important topics and concepts before your interview.
Mock Interviews with FAANG Engineers
Practice with real engineers from top tech companies and get actionable feedback to boost your confidence and skills.
Performance Analysis
Clear, concise big-O analysis to help you learn how to determine time and space complexity.
Why Software Engineers Trust Us
Our platform and teaching methods have helped Software Engineers achieve great results in their interviews.
Alperen K.
Senior Software Engineer
"The Daily Byte's structured approach to problem-solving and detailed explanations helped me ace my both Citadel and Meta interviews. I went from struggling with medium problems to confidently solving hard ones in just 3 months."
Francisco E.
Software Engineer
"Kevin's advice really helped me to feel confident in my interviewing skills, develop my problem solving abilities, and navigate the ambiguity of coding interviews. With his help, I was able to get offers from Walmart, eBay and Google. I am extremely grateful to Kevin for all his help and guidance throughout this process"
David S.
Senior Software Engineer
"The Daily Byte in combination with Kevin YouTube channel, both teaching skills to crack the coding interview, has been an invaluable resource for me to get hired at Amazon. Kevin's videos and teachings on this website helped to get hired to an L5 position at Alexa Mobile, within weeks. 4 years later I used the same resources to prepare again, and landed another role at Prime Video Sports."
Kiran T.
Senior Software Engineer
"Finally I received a Google L5 offer and my joining date is on Feb 17th. I followed you for preparation and you always motivated me for this. Thank you so much!"
Trulee R.
Software Engineer
"Two months ago I had almost no experience with technical interviews and no clue how to approach them. That's when I started watching your videos for inspiration and interview prep. I had a lot of interviews in January, and this summer, I'll be interning at Facebook!! Thanks so much for your help, Kevin, you really made such a huge difference! Keep up the great work :)"
Jahan K.
Software Engineer
"The interactive coding environment and real-time feedback made practicing so much more efficient. Landed my dream role at Justworks after completing the advanced algorithms track."
Amy L.
Software Engineer
"Hey Kevin! Thank you so much for your videos! I am happy to say that after lots of intense studying, many rejections and interview failures over the last 2 months, I've landed 3 job offers from Twitter, Qualcomm, and Frontdoor Inc! This wouldn't have been possible without your videos and helpful guidance."
Paco
Software Engineer
"Hello Kevin! Just got an offer from Meta thanks for your vids!!!"
Pol P.
Product Manager
"thanks! Just wanted to let you know that I got the APM job at Google. Your videos really helped me getting back to speed with Leetcode and as a non-CS graduate I definitely benefited from a few of the concept you explained. Thanks again and all the best :)"
Mike A.
Software Engineer
"Hey Kevin, just wanted to say thank you for these videos. I was struggling to get any job, not just a job with a big tech company. Then, I watched a bunch of your videos and am signing my offer letter with Apple today. Can't thank you enough!"
@TheZeroviral
Software Engineer
"I had an offer from Google and Apple, I chose Apple due to positions being available in Texas."
Juan
Software Engineer
"Hi Kevin! My name is Juan and I've been watching your videos to help me land a job in swe. Thanks to you, I was able to get a job offer from Amazon, Microsoft, and other companies! So firstly I want to thank you for all of the wonderful tutorials you've put out on your channel."
Mel
Software Engineer
"Hi Kevin!! I just wanted to thank you, your leetcode videos were super helpful to me and I improved a lot because of them. a few weeks ago I signed my first internship offer from Uber and I could not have done it without your channel :) hope you have a great day!!"
Aaranya D.
Software Engineer
"Hey Kevin! Just came across your channel and have been binging your Amazon Playlist since. I have a phone screen for an SDE I pos at Amazon and was wondering if you had any tips for me (update:) GOT THE OFFER"
Swapnil B.
Software Engineer
"Thanks a lot for your interview tips and videos, you helped me a lot during my interview process. Today, I got an internship offer from Facebook and your videos and approach were the ones that helped me prepare for my Interview."
Utkarsh G.
Software Engineer
"Hey Kevin, thanks for all the content you have put up on your YT channel, it was very helpful when I was leetcoding and got stuck on some occassions, recently I got an offer from Amazon and your channel had a significant role in my preparations. The way you have put up explanations to problems is just amazing."
Srinithya
Software Engineer
"Hey Kevin, I can't thank enough for your videos! Your playlists are one of the top reasons how I got an offer from Microsoft :)!"
Daniel B.
Software Engineer
"Hi Kevin, my name is Daniel and I watched a lot of your Youtube videos about Leetcode questions. Thanks for helping me also get offered a job at Amazon."
Nick J.
Software Engineer
"Hi Kevin, I used your leetcode question explanations in preparation for my Amazon interview. And I was offered! I really appreciate what you have done here!"
Srikanth D.
Software Engineer
"Kevin Naughton Jr. your videos really helped he in preparing for interviews today I was super happy to have multiple Offers from FAANG companies and others. I am really happy to accept an offer from Adobe.Your videos are crystal clear and helpful in breaking complex problems into solvable sub problems and conquer."
Vaibhav S.
Software Engineer
"Thanks to you again, was able to crack Amazon this time with the motivation needed and positive energy you spread."
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Join thousands of engineers who have successfully landed their dream jobs with our content and teaching methods.
Meet Your Instructor
Get to know the engineer and mentor behind The Daily Byte, dedicated to helping you succeed.
Kevin Naughton Jr.
"Hi, I'm Kevin! I'm an Ex-Google and Ex-Amazon Software Engineer, and the creator of The Daily Byte. I've built a following of over half a million people across social platforms and I've mentored thousands of aspiring developers and professionals, helping them break into the industry, ace technical interviews, and land roles at top-tier companies. My mission is to help engineers land their dream jobs by demystifying the interview process and providing the best resources possible to prepare for technical interviews.
When I started my coding journey, I struggled to find resources that were both practical and effective. I've been in your shoes, and I know how tough it can be to break into the industry or land your dream job. That's why I created The Daily Byte - to give back to the community and make interview prep accessible, practical, and effective. If I can do it, so can you! "
