I want to practice and strengthen my programming/problem solving skills. I’ve heard about Leetcode and how many people recommend it, but it’s not free. Does anyone know any free alternatives that I can try out?

What are the good alternatives to LC in terms of interview preparation with the same effectiveness but not so overwhelming?

I found hack2hire, but they seem to have little number of problems in total... what else? codility?

So far I haven’t used a service like leet code. But from what I read that even the simple problems are fairly difficult. My question is if there is an alternative I could start out with that isn’t as difficult to start out with.

I’m not opposed to Leetcode, But don’t want to start out as frustrated.

is there a website similar to leetcode but with free answers to all the programming problems ?

Rather than running your code against 100 different test cases and failing you if you miss 1, is there a platform that can use AI to tell you if you have the correct approach that covers the general case and then a couple of the more common edge cases? I feel like that would more useful and more in line with a standard white board interview.

In school, I learned math best by doing TONS of problems. I am looking for good resources that will allow me to do the same thing as I practice DSA. The ideal platform would have problems that are easier than/about the same as Leetcode easys and can be filtered by topic.

So far, the only thing I have found is GeeksforGeeks. It lets me filter by Basic and also choose different data structures or techniques to filter by.

Any other suggestions?

Hi, I'm looking for an app or site like sololearn but only for algorithms and data structures.i was thinking about solving leetcodes but I feel like a dumb ass since I mix up algorithms and can't code that well since I don't practice that much. I'd be grateful for your advices.

So I am a career switcher, trying to find a Junior SWE position in this god awful market, and am trying to prepare for possible technical interviews. I have found this task rather daunting because the only prominent services for interview practice seem to be Hackerrank and Leetcode. These two services are god awful because every exercise is made unreasonably difficult; if a question doesnt require some advanced mathmatical or scientific background to even understand the problem statement, it requires you to use some ridiculously roundabout method to solve the problem, and will mark the answer wrong if you use a simpler, more practical method. I know from experience completing technical interviews that decent employers dont employ questions like these when interviewing Juniors, and I know from my experience interning on a development team that the ability to solve brain teaser problems is irrelevant to a Junior SWE's Job.

The kinds of problems I want to practice would be something like "create a program that checks if a string is a palindrome" or "create a program that checks which items in an array of strings are represented more than once" (these are actual questions I was given during a technical interview for a Junior SWE position). Can anyone reccomend a book or website that focuses on problems at or around this level?

Hey 20F here and in my 3rd year. I’m currently grinding Leetcode for internship. My question is would it be worth it to get Leetcode premium? I think it’s too pricey so I’m looking for an alternative. Also where do you guys study for specific questions for specific companies?

Hi R

I was looking into LeetCode and it seems the solutions they have there are from “the community”, which has no guarantee that the answers are actually the best solution or even that they are correct.

I’m looking for an alternative platform that also has good challenges, ones that are actually similar to real interview problemas, but that have the “official” resolution explanation, considering the best answer to the problem.

Please, would anyone have any recommendations?

Thank you

After months of putting it away bc ofc the horror of LC is just too real, I am finally going to start LC. From everything I have read it's not about solving 100s of questions but actually knowing the 24 patterns that are explained on Grokking. As I cannot afford Grokking I want to know free alternatives where I can learn the same content. I have tried searching for it so much but I cannot find any resource that breaks things down to granular level. Please help a girl out!

1. striver a2z data sheet (especially like this)

2. neetcode 150

3. blind 75

share what you have

I read that Websites like leetcode aren't representative of the type of problems that one will face in a day to day work environment. What would be a more useful way to practice coding and problem solving then?

I have been facing trouble with leet code problems and it's frustrating me. I studied and practiced Python from books and online tutorials and couple of my friends suggested me to try LeetCode but now I feel like I'm trying to jump on top of the building without taking the stairs. Please suggests me as to how to progress? Thanks in adv.

A lot of people on this sub practice on Leetcode. It is no doubt the best place to practice inter.view questions. However, unless you are a premium user, there isn't a good methodological way to learn algorithms. You can check out https://www.lintcode.com/ladder/2/

They have a special question ladder called "US Giants". It contains just the right amount of easy, medium and hard questions for each topic (most of them from Leetcode). There are 122 questions in total and I did around 80% of them. Almost every new question that I see in my interviews is a variation of what I already did on Lintcode.

P.S - It's free!. Thanks to our Asian friends :)

Hey everyone,
As we all know, platforms like LeetCode are amazing for practicing Data Structures and Algorithms (DSA).

I was wondering — is there something similar for web development? A place where you can practice front-end, back-end, full-stack tasks, or even complete small projects with real-world scenarios?
Would love to hear your suggestions! Thanks in advance 🚀

I am a Software Engineer in the industry for 7 years! Unlike the average individual, I actually like leetcode even though it has no correlation with job performance. It just satisfies my itch of solving problems and having a fast feedback loop: sort of like crossword or sudoku or math puzzles pr

I also like programming languages and like learning exotic languages. Are there sites that are more expansive than leetcode: test file io, or some regex parsing, or date time math or interacting with csv, json, concurrency or dealing with binary data. These will help me learn the capabilities of a new language much faster than just reading a book on the language.

I usually do projects but was wondering if there was something more expansive than leetcode with an autograder that tests some of the things I mentioned. This will satisfy the puzzle itch

I'm only a freshman and started leetcoding and recently past 100 questions. I will keep doing these for a long time but I think there might be some better stuff to do rather than grinding for 4 years everyday. My grades are good