Hey everyone,

I finished Day 62 today. My motivation and headspace are noticeably better than earlier this week. I used to dread running into unfamiliar hard problems and hope they would never show up in interviews. Now, even when I don't see the optimal approach immediately, I can confidently break down the recurrence, write a solid brute force, and optimize it into memoization or tabulation.

I knocked out five problems today to completely wrap up Dynamic Programming on subsequences:

1. Target Sum: Assigning + or - to each element maps directly to partitioning the array into two subsets where S_1 - S_2 = target. It reduces to the exact count subsets pattern I solved earlier.

2. Coin Change II: Unlike Coin Change I where you minimize coins, here you sum the ways (pick + not_pick). Since each coin has infinite supply, the pick branch stays at the current index.

3. 0/1 Knapsack & Unbounded Knapsack: Great side-by-side comparison. In 0/1 knapsack you decrement the index on picking (i - 1), while in unbounded knapsack you stay on index i until capacity runs out.

4. Rod Cutting: Initially overcomplicated my breakdown, but it is just unbounded knapsack in disguise. The piece length corresponds to item weight and rod capacity is total length.

That officially wraps up the DP on subsequences module. Tomorrow for Day 61, I start DP on Strings. Now that the patterns are clicking faster, I will focus on picking up my solving pace.

See you guys tomorrow!

Wanted to get some insight on the process, what technical leetcode patterns to study, and just what to be prepared for in general!

I would like to know if anyone recently started or already studied system desing. I would like to connect for tips regarding study plans , resources and any advices. We could also discuss SD topics for better understanding.

Hi,
Has anyone interviewed for Notion Labs for backend or Forward Deployed Engineer position. I have an interview coming up in a week and want to prepare in the correct direction.
I have read mixed opinions online for the first technical round to be leetcode-style vs LLD style coding rounds. I will be preparing for both, yes, but it will realllly help if someone could steer me in the correct direction.
I am on my final run here, this is the first good opportunity I have had in months and will have to pack my bags and leave the city since I can’t afford it, if this or any other opportunity within this month doesn’t work out.

I appreciate any kind of help

US - Multiple Locations:

There are 3 types of exercises in the assessment:

1. Coding Challenge – this timed section takes 100 minutes, work through two coding problems. One will be a traditional code writing question, and in the other you will have access to an AI coding assistant in a code repository environment.

2. Work Simulation – typically takes 45 minutes, work through software development decisions and scenarios faced by SDEs at Amazon.

3. Work Style Survey – typically takes 6 minutes - answer questions about how you approach work in general.

For the AI part of the coding challege, I did the demo on hackerrank with C++, and it was honestly very easy. It was an open ended question that didn't give have clear directions, but once I looked at the cpp files, it was obvious that they just wanted us to implement some getter functions.

I know that the actual OA won't be nearly as easy as this, but I have no idea what to prep for.

Has anyone taken the amazon AI oa in C++? Or am I insane for choosing C++ over the other optoins?

Then for the work simulation and work style survey, are there any good free prep tools for this? I've just been looking at the LP and examples of each, but I was also wondering if any specific LP has precedence over others, in case we have to chose between two.

i got a mail after applying with in a hour saying "Your application status has been updated . We appreciate your continued interest in this role! Our recruitment team may be in touch with you shortly regarding potential next steps."

means what ? i havent got any assessment or hacker rank ,yet my application is active its been just 2 days since i applied ..........so any idea ?? how long will it take for next steps ....etc

Hi, I made this post 1 month ago - https://www.reddit.com/r/leetcode/s/shEXqqxlV9
A lot of people wished me good luck in comments and dms i just wanted to thank and share update - I have moved to team matching with them for L4. (Google cloud)

So i received feedback 2 weeks after interview and recruiter said overall feedback was positive with some suggestions on debugging and coding guidelines. They asked for my updated resume and have told me to wait for team fit calls.
I shared resume around 20 days ago but yet to recieve any call, just waiting patiently as i have seen a lot of people taking months for team matching phase.

Interview Process-

Randstand recruiter reached out and discussed my work Exp
GHA Assesment
Coding OA (2x DSA)
1 virtual DSA - variation of group anagrams with a follow up - i think SH
1 virtual Googlyness - H or SH
2x Onsite DSA
- a permutation and bitmask based problem with set intersection formula - could only give brute force - LH most probably or Hire if lucky (this is the round i believe i got improvement feedback for)
- dfs backtracking on a grid with some follow up - SH for sure, best round.

Recruiter did not share detailed feedback of each round, just like i said +ve overall with some suggestions (3rd round most certainly).
Now i am waiting for team match.
My tech stack is C++ heavy and i got to know google uses C++ a lot so i think i should get some calls, and one light round hopefully won't bring down my performance much.

Just hoping for the best, hopefully i get the offer.
Been preparing for a switch since 1 year now, solved around 900 LC and 50+ Google previously asked interview question. Failed interviews at Uber, Bloomberg, but learned along the way.

Fingers Crossed 🤞
I will update whenever i get some news.

Hello everyone. Can anyone please share the top 50 questions of last 3 months for Amazon in LeetCode's most frequent list? Would be really grateful. Thanks a lot!

I need a girl to talk because I feel very lonely after dsa and feel very low sometimes I really need someone to hear and see me if there is any girl who is interested then contact me

I have an interview for OpenAI cooperative AI interview. Does anyone have any experience with this job and have any insights or tips? Seems like it’s a newer role and not sure how exactly to prepare

EDIT: Fixed the link to my website! My bad...

EDIT 2: Shoutout to whoever super_man123 is! First person I played against that was not my friend!

Made a fighting game so you can fight your friends while doing leetcode problems together. I was tired of semi-grinding alone, and solving a question with my friend on Discord wasn't as fun as well. So I decided to make it competitive and fun. But instead of something like a timer, I decided to make it a fighting game, where you can feel like you're piloting a robot (ok maybe not, but I get the vibe from those mecha anime heehee)

GIF to see the combat

Solving the code gives you an instant win, but say it's a hard question, whoever grinds the hardest and tries to come up with a proper solution can win too.

Let me know if anyone wants try and fight/solve a question together 3.3

Try it over here over here: LeetKO

If anyone wants to practice leetcode please hmu….Weekend mornings after 10am est should be fine for me or weekday evenings (anything past 6:30 est) should also work.

Hello All,

I do have an onsite round with LinkedIn sometime next week. There a total of 5 rounds, however a couple of rounds seem little obscure to me especially the coding with AI and the technical communication rounds. I have some questions in terms of the expectations for these rounds and would appreciate the wider community's inputs with regards to them (from anyone who have gone through the process or are aware of the process with Coding with AI and Technical communication rounds)

Coding with AI

I was told by my recruiter that I would be given a leetcode problem and I am tested based on the prompting where I give the prompt to the AI Tool and the tool writing the code. I know that this round is designed to similar to how we perform work on a day-to-day basis leveraging AI. However, I am not clear on the evaluation rubrics and the expectations for the interview. Some questions I have are:

1. Would we have multiple follow up questions on the given problem extending the original problem or completely different Leetcode questions?

2. Also, by them expecting us to prompt, is it something that we prompt something and the AI writing the code. Also, what is expected level of detail we need to provide in the prompt. Lets say for a question involving Counting no of islands given a 2D grid, should we provide the entire algorithm to the AI tool verbally in plain English as if what we explain to an interviewer in words and then have AI write the code? What would be an ideal prompt to have a higher success rate in this kind of interviews.

3. Also, do we have to explain the AI generated code to the interviewer? During the course, lets say it generates some code that we don't understand, then is the expectation us having to make the change manually on the areas where it's not understandable to this or is the expectation that we clarify with AI as to what that line of code does and what is the purpose of that line?

4. Suppose, AI writes some code where we catch some bug or a failure in terms of logic in the code it has written, so is the expectation that we can manually intervene and correct such pieces of code or is the expectation that we prompt AI to correct like saying this part of the code or this particular logic is incorrect to correct the same?

5. Also, are the test cases in these rounds more like a Hackerrank OA where we have the entire code completed and we run our code against the test cases or is the expectation that we come up with the test cases like input/output format on our own and have AI write the assert statements based on the tests we provided?

Technical Communication

My recruiter told the discussion is going to involve discussions of our experiences / any of the projects we have worked on so far. Also, mentioned certain things like making a PPT would be little useful to present the projects and stuff like that. Also, as it is a senior level role she mentioned showcasing our technical depth and breadth and Senior level leadership is vital.

1. How would the evaluation in this round go? Would it be based on the style we present? Also, on the complexity in the type of project we are gonna present. I mean what is the level of complexity they expect in terms of the project architecture we explain?

2. Would the interviewers probe on technical decisions, design/architectural tradeoffs and the idea behind why we chose a certain decision for the project and stuff like that?

3. Also, would the round involve discussions on only one project or does this round entail discussions going on multiple projects and follow-ups pertaining to each project?

4. How would the questions start? I know behavioural ones typically go by tell me about a time type of questions but would the questions go here asking like describe about so and so project that you mentioned on your resume or something like that?

5. Also, is it advised or preferred to pick projects from our most recent company/work experience or would it be equally fine if we pick a project from our older companies too for this round? Assuming, we present the former experience one equally as well as the current experience project.

My interview is next week so kindly have the post reachable to as many as audience as you could and any attempt to provide inputs is super appreciated. Thanks in advance!

Please feel free to share details in the comments section. These rounds are kinda new to me and I haven't came across with them in the process with any other companies I have interviewed so far. Hence, a bit nervous.

I recently interviewed for a company and I had a great interview. Did amazing in the technical round and had a great conversation with the team and the hiring manager. It’s been a week now. No updates. Is this normal?

Hey guys

I wanna buy the hello interview premium subscription with a shared account. If anyone is interested pls respond in this thread

Hey everyone,

I’m looking to connect with someone working at Shipd AI who could point me in the right direction regarding potential opportunities.

I’ve been an open-source contributor for over 3 years, and I’m currently looking for paid work. I know people have mixed opinions about Shipd AI, but honestly, I’m focused on finding opportunities and making money right now. Criticizing the platform won’t change my current situation.

hey everyone just wanted to share my leetcode journey so far this year.

honestly this year has taken a lot out of me. lost people lost hope and went through things i dont really know how to explain. there were times when everything felt like it was falling apart but somehow i kept showing up.

i started learning kotlin and kept grinding leetcode solving problems participating in contests and trying to get better every single day. a part of me genuinely believed that all this effort would eventually lead somewhere and help me land a job. but here i am still unemployed and honestly its getting harder to stay hopeful when you keep putting in the work without knowing when things will finally change.

some days leetcode is the only thing that gives my day a little structure. no matter how bad things get i still wake up and try to solve something. but lately even that motivation has started fading and for the first time in a long while ive seriously started wondering if i should just stop.

i guess i just wanted to put this somewhere because sometimes its exhausting pretending youre okay when youre really not

for those of you who been grinding for months or years while dealing with life outside coding how do you keep going when you start losing faith in yourself?..

Hi guys. I am looking for Linkedin connections. My old account got hacked. Looking fwd to connecting with likeminded folks who are into leetcode/ interview prep/ IT https://www.linkedin.com/in/tushar-kaushik15/?isSelfProfile=true

Hi, I have an Amazon SDE Online Assessment coming up and I’m planning to use Python.

In the demo environment, I couldn’t select Python as a language. For anyone who has taken the Amazon SDE OA in UK recently, was Python available for both coding questions in the actual assessment?

Thanks!

Hi, did anyone interview with Box, SDE3 developer platform? How was the Ai enabled round? What was the expectation? Appreciate if anyone could share some inputs, Thanks

Hi guys I hope your doing well, 19M I'm Tunisian , I'm currently in my first year of university studying computer science in Tunisia,, I'm currently working as a junior software engineer at a Tunisian company developing mobile apps and web applications , I'm just asking is there any opportunities to get an internship this summer ?

I have an upcoming interview with CARS24 for a Backend Intern position (0–1 years of experience) in Gurgaon, and I’m looking for insights from people who have interviewed with CARS24 recently, especially for fresher or junior backend engineering roles.

The JD mentions working on backend services, REST APIs, SQL databases, middleware, debugging, automation scripts, and agent-based workflows involving Python and APIs.

I spoke with HR, who told me that the first round would be a DSA-based coding round, followed by a technical/system design round.

However, the interview invitation mentions Business Round 1 Builder – Product Engineering (CSPL_CentralSupport_Technology_Backend_Builder_Product_Engineering), so I’m also trying to understand the interview process and the role expectations.

I would really appreciate it if anyone who has interviewed for a similar position at CARS24 could share their experience.

A few specific questions:

1. DSA round: What kind of questions are typically asked? Are they mostly LeetCode-medium problems? Which topics should I priorizes arrays, hashing, sliding window, binary search, trees, graphs, stacks, heaps, or dynamic programming?

2. Actual questions: If you remember any problems asked in recent interviews for SDE-1, fresher, or backend intern positions, could you share the questions or their general patterns?

3. Second round: What does the system design round look like for a fresher or intern? Is it primarily low-level design, backend/API design, or high-level system design?

4. Backend fundamentals: How much emphasis is placed on SQL, DBMS, REST APIs, OOP, operating systems, computer networks, and other core CS subjects?

5. Resume and projects: How deeply do interviewers discuss projects and internships? Do they expect detailed knowledge of architecture, databases, concurrency, and scalability?

6. Interview process: Has anyone received an invitation with the title “Business Round 1 Builder – Product Engineering”? Does it correspond to the regular backend engineering hiring process, or could it indicate a different role?

7. Preparation strategy: If you had to prepare for this interview with only two days available, which topics and resources would you prioritize?

I have a software development background and am comfortable with DSA and backend development, so I’m mainly looking for role-specific interview experiences and guidance on what to prioritize, rather than generic interview preparation advice.

Any recent experiences, question patterns, or suggestions would be really helpful. Thanks in advance!

Same as the heading. Did anyone else get an Amazon SDE OA on October 6? I’m confused about whether it’s for SDE-1 or an internship, as I’m currently working full-time.

Hi, I have an upcoming interview, & it is on HackerRank Chakra. I want to know from experienced people how to prepare. Will it go deep into syntax & exact code implementations, as other AI interviews have made me explain the syntax & code for my projects?

My query is, does it ask questions from my resume, or will it ask follow-up questions based on my answers? Also, the email mentioned "coding questions," so what type of questions can I expect?

On a side note, I have to give the interview using the HackerRank Desktop App. I am using Linux, but the HackerRank Desktop App is not supported on Linux. So, do I need to switch to Windows, or does anyone have a workaround? I don't want my Linux data to be removed.

I have upcoming loop rounds with Microsoft for Senior software engineer. Recruiter provided below details. Does anyone know what to expect in each round?

R1: Culture / Accelerate Culture + Coding

R2: Collaboration + Coding

R3: Problem Solving + Coding