r/CS_Questions • • Aug 02 '25

Got a SWE Internship @ Google w/ 0 LeetCode

0 Upvotes

Long story short: I cheated on the interview lol

Background: Top 150 CS school, no previous internship experience, only notable things on my resume were a 3.88 GPA and a few Roblox games (w/ users though) in Projects tbh.

Ngl I do have a decent understanding of the qualities they're looking for in swe interviews, and I could probably solve most LeetCode Easy on the spot, but I can't solve any LeetCode Medium nor do I want to. It just felt like such a huge waste of time and I couldn't get into the grind. Applied to 442 different internships for Summer 2025 across the country.

So I was debating for a while if I wanted to make this post in case I get into any trouble, but as of yesterday my internship has officially ended so I think I'm in the clear! So during my interview screens and rounds, I pretty much used InterviewCoder (https://www.interviewcoder.com/) in the background. Ngl I think I was a bit paranoid during the interview rounds cause I thought they caught onto it or something, but nope all good 💫

I also got offers from 3 other companies with it (not FAANG but still decent) lol. Ngl I think the new meta is to focus more on personal projects and developing skills rather than grinding LeetCode. It saved me a ton of time and stress, and my performance rating/feedback was positive by the end of the internship so I don't think that grinding LeetCode has a direct correlation on actual job performance.

Any thoughts? :3


r/CS_Questions • • Jan 23 '21

Can you guys give me some feedback on my online resume?

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0 Upvotes

r/CS_Questions • • Jan 13 '18

I got banned 15- 8

0 Upvotes

Me and my 3 friends were playing a comp game, on the last round i did too much damage and got banned but we won. Do I get or lose ego points?


r/CS_Questions • • Feb 07 '23

Python program to find total number of digit 1 appearing in all integers less than or equal to the number itself with explanation

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0 Upvotes

r/CS_Questions • • Feb 23 '24

Can someone get on a call or something and teach me how to tune hyperparameters

0 Upvotes

I'm learning how to tune hyperparameters and I'm using sklearn's MLPregressor and there's a lot of hyperparameters and grid search is not very effective. Are there any alternatives to this?


r/CS_Questions • • Oct 22 '21

Measuring team productivity through Git

2 Upvotes

Hello, everyone.

Together with my coworkers, we are exploring the possibility to measure how productive our team is using git history. We were looking into several ideas which include:

- measure productive code (time needed to net 100 LOC after churn)

- measure raw code (time needed to gross 100 LOC)

- measure number of coding days (days per week with commits)

- measure commits per active day (average number of commits when active)

- measure merges/conflicts ratio (divide number of conflicts with a number of merges to see if the ratio is higher than 15%)

We were interested to add some kind of experience metric. See how much "experienced" an author is in the codebase (get first commit vs today's date) and see ratio with productive code, but we were not sure.

All of this analysis should be conducted only by running a git log. What do you think about this, and perhaps could you add or take away something from this idea? Do you think that this will provide value and why?

Thanks!


r/CS_Questions • • Oct 14 '16

I don't want to start a language-war ....But Can we replace JavaScript with Java8?

0 Upvotes

Is it possible to write a browser that accepts Java8 along with JavaScript? Since anonymous classes are introduced in Java8 and is a solid typed language, it is very much possible to replace Javascript with Java. You don't have to learn TypeScript. All you need is just Java 8 .. how does that sound? I have come across some really ambiguous inconsistencies in Javascript and I am thinking if it's possible to replace it. I'm just asking if it's possible.

Thanks


r/CS_Questions • • May 06 '22

Two way set associative Cache Mapping

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1 Upvotes

r/CS_Questions • • Jun 30 '25

How do I make my own app I have no experience of coding and I am 15

0 Upvotes

I have a big idea I want to do but I have no coding experience and I think this app would a success can anyone help me I am thinking that will research the things I want to code and then I will try to imply it I open to any advice


r/CS_Questions • • Jul 08 '25

I built a bot that applies to jobs for me while I sleep. It helped me land interviews. Here’s how.

0 Upvotes

I was fed up applying to 50+ jobs a week with no replies.
So I built a bot that scrapes tech job boards and auto-applies using my resume + keywords.
Got 2 interviews in 7 days.
If anyone’s stuck or wants to test it, let me know.


r/CS_Questions • • Jul 14 '18

[Self-Promoter] BigN Mock Interviewer for Hire. Pay after the session

3 Upvotes

TLDR

I don’t recommend Gainlo, and I will be happy if you use anyone but Jake. Yes, I do offer mock interviews.


About Me

I’ve worked at FAANG companies for most of my software engineering career and built a software engineering curriculum for a bootcamp. I tried being a mock interviewer with Gainlo for a short while as a side hustle but I realized it wasn’t a trustworthy environment.

Since then, I’ve run >1000 coding & system design interviews since 2012 and know how to educate others deeply about software concepts.


My Experience w/ Gainlo (Mocki.co)

I was an interviewer for this company/guy for a couple of weeks to test the waters, see how it operates, and if it was legitimate. The appeal of Gainlo is supposed to be that your interviewers are FANG engineers and get risk-free feedback. The person/group behind Gainlo, “Jake”, acts as the middle-man and matchmaker for candidates and charges $300+.

There were 4 main problems with this:

  1. Inconsistent/Low-quality interviewers: A friend was quoted $300 for an entry-level interview by Jake. For perspective, I was paid $75/hr after negotiating. I doubt you’ll get a good, verified, professional interviewer if he is willing to take that small of a cut.

  2. Questionable authenticity of interviewers: All it takes for someone to be an interviewer is to send Jake a LinkedIn profile from a convincing e-mail address that matches that person’s profile name.

  3. The interviewer’s performance doesn’t matter: Your interviewer can be complete crap, and that’s your loss. Jake doesn’t assess the people he works with. He just wants to pocket his share and get out of the equation. In the link above, that indifferent interviewer still got paid for doing nothing for you.

  4. No professionalism: There’s no refund policy. He pays interviewers when he remembers rather than on a schedule. He scheduled me for times that I explicitly said I was unavailable. He’s very disorganized.

They are taking a huge cut for playing matchmaker when people could instead be getting interviews for free or at least get bids on Reddit forums for mock interviews. Even if you don’t use me, I’ll be happy if you don’t use Gainlo.


Free Resources

If you’re not ready for mock interviews, there are so many free practice coding exercises available: /r/CSCareerQuestions, /r/CS_Questions, /r/AskComputerScience, /r/ComputerScience, /r/learnprogramming, https://www.pramp.com (Peer-2-Peer), https://www.interviewbit.com, LeetCode, InterviewCake, HackerRank


Are you still doing mock interviews in 2024?

Yeah, you can book with me on my Calendly page, no payment upfront. Be ready for real, honest feedback!


Success Stories

I’m not a substitute for hard work and dedication, but I can help you get unstuck and gain momentum by identifying and addressing gaps. My clients worked long and hard to land these offers.

# of SessionsBackgroundOffers (1st entry = accepted)
93yr mechanical engineerentry-SDE@GOOG, AMZN, MSFT, SNAP
710yr data scientist w/ Ph.DPrincipal@FB, GOOG, Airbnb + 3 more
44yr data scientistMachine Learning@FB, junior SDE@Instacart + 2 more
32yr front-endentry-SDE@FB, GOOG
3college-gradentry-SDE@Bay Area startup
25yr SDEPrincipal(65)@MSFT
23yr data engineerSDE1@AMZN
2college juniorIntern@LinkedIn then entry@FB, GOOG
16yr SDEL5@Square
1boot campentry-SDE@GOOG
1college-grad + boot campentry-SDE@Los Angeles startup
12yr back-end engineerentry-SDE@Twitch, TWTR, Playstation

Notes

gainlo sucks gainlo is a scam gainlo scam gainlo bad gain lo scammer


r/CS_Questions • • May 20 '20

Help me roast my CV for a FAANG application

2 Upvotes

I applied to this Amazon SE position in South Africa https://www.amazon.jobs/en-gb/jobs/941273/software-development-engineer. This is my 2nd application which has relegated to No longer under consideration Is my CV lacking in a deal-breaking way, or I'm being unrealistic with Amazon's recruitment processes i.e. maybe they're too many applications to practically go through every CV?

Here my CV, roast way! https://drive.google.com/file/d/12qtWKEMzPkaWFXDBMcmIz6ZxbWrwSFSS


r/CS_Questions • • Jul 12 '21

Why and how does Instagram scrub story viewerships after 48 hours?

2 Upvotes

https://i.imgur.com/EmFmNAw.png

The why: Can't be GDPR or something like that, since likes on a post are immortalized, so I don't see why a story view can't be. Maybe it takes up too much space?

The how: I'm assuming this is stored in a document DB of sorts:

{

storyID: abc,

timePosted: 2021-07-22T18:46:27.376Z,

imageS3Url: "imageBucket/container=xyzImages/abc.jpeg"

viewers: { userId1, userId2, userId3, userId4, userId5, userId5 }

}

This could even be sharded out in many viewers documents in case of a celebrity whose stories get millions of views. That would also help with caching n - 1 of thoseviewers shards since its immutable data.

For scrubbing, I'm thinking a scheduled job that runs every minute and finds each document with a timePosted > 48 hours and clears out the viewers section of it. I would think this would be a rather heavy job though, even if you index on timePosted and quickly find all eligible documents.

Also, you would want to not get the whole corpus of documents > 48 hours, which would be way too many I feel by hunch. Doing some math, a user base of 1 billion active monthly and a story per user per day means this would grow at 1,000,000,000 stories a day, and if each story takes 100-200 bytes of space in the doc above, this is 100GB of data a day. After a year, you're looking at querying 36.5 TB. I don't know how strong modern databases are but it seems a massive chunk to query through.

Perhaps you can pull only the records not scrubbed yet, so a flag like viewersScrubbed: false could be added in the above document.

Or maybe instagram keeps the viewership records around but just doesn't show it in the UI.

Let me know your thoughts.


r/CS_Questions • • Feb 26 '24

Hi great people!! Am 35yr old, have learnt software development through bootcamp and currently in stage 1of my Bsc in computing and IT. Can someone pls give hint on how to build my cv??

1 Upvotes

r/CS_Questions • • Jul 08 '15

CS internship interview today.. HALP

1 Upvotes

So, I have an interview for my second software engineering internship today. I'm nervous bc my first internship's interview was only a phone interview, so I don't really know what to expect. Looking for any advice, tips, or anything helpful at all! Haha


r/CS_Questions • • Apr 13 '16

Tech interview: Given 3 queries, which is correct...

0 Upvotes

There are three queries given, each returns different results. So here's the question:

There are three queries, one of them is correct and the other two are wrong. Which is correct and why?

Query 1: http://sqlfiddle.com/#!6/faed39/8

Query 2: http://sqlfiddle.com/#!6/faed39/7

Query 3: http://sqlfiddle.com/#!6/faed39/6

I chose one of the three to say it is correct explaining that it provides an accurate count.

But I feel that each is correct dependent on the context or the business requirement. I gave that type answer to a similar question in another interview and was given the feedback that one has to make the best decision given very limited information.

So what are your thoughts?


r/CS_Questions • • Jul 22 '19

Git Question

1 Upvotes

On branch feature/MDMS-58

Your branch is ahead of 'origin/feature/58' by 3 commits.

(use "git push" to publish your local commits)

nothing to commit, working tree clean

I'm pushing my changes to my repository, the repo on GitHub shows I'm up to date, but Git status shows this. This also appears in GitHub Desktop. Potential user error or any tips on what's going on?


r/CS_Questions • • Apr 09 '18

crosspost from cscareerquestions

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1 Upvotes

r/CS_Questions • • Jan 22 '22

How difficult would you rate this problem as an interview question?

1 Upvotes

What level of difficulty would you rate being asked to create this example from scratch if you were allowed to look up API references but not allowed to use this example code: https://developer.mozilla.org/en-US/docs/Web/API/Element/mousemove_event


r/CS_Questions • • Jun 13 '20

ELI5 MVC Pattern

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0 Upvotes

r/CS_Questions • • Sep 09 '16

Is there any way to change the dimensions of a tree without breaking parent child relationship ? Like if I want to convert 5-ary tree to 3-ary tree ? And want to generalise it to it for any value ?

0 Upvotes

r/CS_Questions • • Jan 30 '20

Heroku site is only up sometimes

0 Upvotes

Working with Heroku, sometimes after I push new changes, It shows the default domain screen and Idk when it'll load my html. Why is this happening and how can I avoid it?


r/CS_Questions • • Oct 12 '16

How do CS students feel about applying to top tech companies??

0 Upvotes

Hey! I work for an HR technology start-up that connects recent grads with job and internship opportunities. Help us figure out ways to improve the application process for jobseekers like you by taking our quick 10-15 minute survey!


r/CS_Questions • • May 22 '22

What is a software engineer "competency-based interview" in Siemens like?

3 Upvotes

I recently got a request from the UK. Did anyone experience it before?

What kind of questions do they ask? Coding-technical questions or CV-Based conversational questions, like "tell me about a time that you did..."


r/CS_Questions • • Oct 19 '23

How can a newbie start learning about blockchain?

3 Upvotes

One of the most innovative developments in recent times is undoubtedly blockchain. Many industries, according to some, may undergo significant change as a result of it.

This has paved the way for fresh job opportunities while also providing numerous companies with the opportunity to begin creating Blockchain-based applications.

Being familiar with Blockchain technology and how it is used in different fields will keep you at the forefront. It will enhance your resume and help you land a better position with a higher income.

But, my question is how a beginner should begin learning about this technology. Although you may find many companies promoting these courses...

I believe it was much easier for us who are around this tech from the start, since now there's AI as well, and projects like NeuroChain that promote blockchain and AI are pretty difficult to explain to a newbie.

So, would you recommend some platform, online course or is there any pdf about it you know of?

As of right now, I think the Blockchain Council might be ok. I am aware that blockchain is a complex topic. Don't get discouraged if you don't grasp everything at once. It takes time.