If you are a fresher or experienced developer preparing for your placement interview. I would suggest you check this article since it’s very useful for those preparing for technical interviews.

Sites:- GeeksforGeeks, w3schools, CodeChef , sitesbay, sanfoundry

Quiz/ learn :- geeksforgeeks , tutorialspoint , indiabix .

Here is my list of some of the useful websites you can visit to prepare for your coding skill.

1. LeetCode

LeetCode is a great and relatively new website with a huge number of questions. It has got coding problems with a well-defined problem statement and asks you to solve the problem and submit the solution to any of you.

By the way, if you have trouble solving LeetCode problems then you can also check out Bit Punch's LeetCode in Python: 50 Algorithms Coding Interview Question course on Udemy. This course goes through hard to easy LeetCode problems and explains to you how to solve them.

2. GeeksForGeeks

GeeksForGeeks is a great website that has lots of programming questions from various tech companies like Amazon, Google, Facebook, Microsoft, Flipkart, Uber, etc.

It's mainly a user contribution-based website where users contribute programming questions in the form of short summaries and articles.

The GeeksForGeeks team also write an article to explain concepts that are important from the programming point of view like data structure and algorithms like Trie, Red-BlackTree, Self-Balanced Tree, etc.

Overall a comprehensive source for lots of programming questions but you need to spend the time to find good ones. Though, if you find trouble solving GeeksForGeeks coding problems then I also recommend you to first go through Grokking the Coding Interview: Patterns for Coding Questions course on Educative.

3.HackerRank

Another website is full of challenging coding problems. You can join the website not just for programming job interview questions but also to improve your coding skills by solving challenging questions.

The good thing about HackerRank is that it's also used by many companies for technical assessment and remote interviews which means if you have a strong profile on HackerRank you may get matched with a suitable opportunity.

If that's not enough, more than 11 million developers use HackerRank to practice coding skills, prepare for interviews, and get hired. You can be one of them too.

4.CodeChef

It's a great online platform for Aspiring programmers. Created by Directi, one of the leading software company this platform help you learn and master Algorithms and Computer Programming. You will also find a lot of programming contests on this site. It also provides certifications.

That's all about this list of top websites for Programming interview questions. Depending upon which niche you are you can also focus on one of the sites for data structure and algorithms, GeeksforGeek has got a large number of problems but Javarevisited is the best for preparing Java interviews.

5.HackerEarth

Challenge yourself and compete with over three million developers worldwide. Join in various monthly coding challenges ranging from beginner to advanced level. HackerEarth supports over 35 programming languages and their platform can be accessed for free for developers.

HackerEarth has a wide range of practice tracks available such as Data Structures, Algorithms, and more where developers can learn and analyze their performance by solving over 100 problems in each of the tracks and rank on the leaderboard.

6. CodinGame

Improve your coding skills to the next level by solving tons of fun coding challenges in more than 25 languages and data structures. CodinGame lets you practice coding in pure code with online games.

You can also learn other programming languages crafted by their top developers. Strengthening your coding skills could also land you a job with their partner companies.

7. TopCoder

Compete against other designers, developers, and data scientists in one of the original online competitive programming platforms. They have Single Round Matches offered a few times a month at a specific time. The top rankers are one of the best and hard-to-beat programmers.

8. Project Euler

Explore a domain of mathematical challenges and data structures that require more than mathematical insights to solve. The coding problems on the site give an inductive chain learning experience meaning each problem introduces new concepts that can help solve other problems.

Unlike the other sites on the list, you can not code on the website itself so you would have to solve it on a sheet of paper.

9. Codewars

Solve coding challenges and data structures created by an online community of developers in Codewars. Since this is a community-based website, you can create your own code and discuss solutions on online forums for each coding challenge.

The challenges on the site earn you a spot on their ranking system. The higher your rank, the more difficult your challenges will be.

The Best Ways to Teach Yourself to Code

• Choose your programming language

• Take up online courses and bootcamps

• Watch coding videos & read books

• Practice with personal projects & others' work

Thank you for reading this article. I hope it was a great read for you. If you have any feedback please share it in the comment below. Also, if you find it helpful, please like and hit the follow button on the right top corner.

For a quick response, You can reach me on Twitter - twitter.com/Mahima13_dev