Top 15 Websites for Coding Challenges and Competitions - GeeksforGeeks (2023)

Starting the journey of programming and competitive coding, every coder wants to test himself/herself in the waters. To do so, he/she has to participate in various competitive coding challenges and competitions. But the challenge that every coder faces in the beginning of the journey is which website to go for such coding challenges and competitions, which is the best website for coding competitions, what is the benefit of attending a competitive coding competition, and many more.

In this article, we have addressed the questions that you face in such situations and curated a list of top 15 websites for coding challenges and competitions. If you are about to begin your coding journey, we recommend you to refer to this article for a complete reference of the opportunities you can take advantage of using the mentioned websites for coding challenges and competitions.

Here are the top 15 coding websites/contests for competitive programming:

1. GeeksForGeeks

GeeksForGeeks organizes a bunch of programming contests every month through the practice portal which includes a number of job-a-thons for freshers to get hiring opportunities in a significant number of companies. Besides, there are many other monthly, weekly and daily basis challenges hosted regularly on the websites such as:

  • Monthly Job-a-thon: It is a contest for individual participants. Participants get the opportunity to get hired by a bunch of companies that shortlist for interviews as per their own criteria.
  • Bi-Wizard Coding: A coding competition exclusively for students. The top 100 students get chances of winning exciting rewards and also access to free courses.
  • Aim GATE: A monthly challenge that is a great opportunity for GATE aspirants to judge their preparations.
  • Interview Series: A weekly challenge that gives a great opportunity for aspirants to practice a lot of questions based on important data structure and algorithms concepts for the preparation of interviews.
  • Problem of the Day: A new problem every day to strengthen the base of data structure and algorithm.

The key features about the contests are as follows:

  • Chances of winning exciting rewards, GeeksForGeeks merchandise.
  • Access to free courses.
  • Chances of getting letter of recommendation from the CEO.

2. The ACM-ICPC International Collegiate Programming Competitions

The International Collegiate Programming Contest is an algorithmic programming contest for college students. Teams of three, representing their university, work to solve the most real-world problems, fostering collaboration, creativity, innovation, and the ability to perform under pressure. Through training and competition, teams challenge each other to raise the bar on the possibility. Quite simply, it is the oldest, largest, and most prestigious programming contest in the world. Some interesting stats about ACM-ICPC are:

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  • It is spread across 80 countries
  • The registration for the contest in India starts generally in August.
  • The regionals in India are held generally in December
  • The winner of the world finals gets an award of $15000, each continental champion also receives awards. There are also prizes for being the first solver of a problem

Refer to our complete guide on How to prepare for ACM – ICPC to begin your ACM-ICPC journey.

3. Google Kick Start

Google Kick Start is a global online coding competition, consisting of three-hour rounds of a variety of algorithmic challenges designed by Google engineers. Participants can compete in one or all online rounds held throughout the year, and will have the opportunity to develop and grow their programming abilities while getting a glimpse into the technical skills needed for a career at Google. Some important facts about Google Kick Start are:

  • It consists of 8 online coding rounds.
  • The winner gets cash prizes.
  • Top participants may be invited to interview at Google.

Refer to our complete guide on How to prepare for Google Kick Start to begin your Google Kick Start journey.

4. Google Code Jam

Google Code Jam is Google’s prestigious coding competition, a global battleground that urges all programmers to showcase their coding skills. A thrilling opportunity for all code-lovers, Google Coding Jam is a one-of-a-kind platform where programmers are pitted against each other and against time by putting their coding skills to the test. The champion gets the coveted Google Code Jam winning title and cash prize of $15,000!

The Google Coding Jam comprises several rounds and a Code Jam World final. Each round brings with it challenging algorithmic problems; contestants have to pass each of these preliminary rounds, and finally, a total of 25 coding wizards reach the end game to fight for the cherished champion’s title.

You can also see and try previous year’s problems from our Google Code Jam archive page.

5. Google Hash Code

Hash Code is a team programming competition, organized by Google, for students and professionals around the world. You pick your team and programming language and we pick an engineering problem for you to solve. This year’s contest kicks off with a Qualification Round, where your team can compete virtually from wherever you’d like, alongside your virtual Hub. Top teams will then be invited to compete in our virtual World Finals. Some facts about Google Hash Code are:

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  • Registration generally starts in February.
  • Winners get cash prize of $4000.

You can also see and try previous year’s problems from their Google Hash Code archive page.

6. The ICFP Programming Competitions

The International Conference on Functional Programming (ICFP) has been held annually since 1998. It is a challenging three-day open programming competition for which there is no entry fee. The enthusiast can participate from any location without any size limit for team formation. The team will be given 72 hours to complete and submit their entry through the internet. The aim of this competition is to showcase the programming languages and tools that the participants admire the most. This is one of the top programming competitions to apply for.
The ICFP for 2022 will be from 11th to 16th September.

7. Facebook Hacker Cup

Hacker Cup is Facebook’s annual open programming competition which is open across the world for participants. This is one of the top programming competitions to apply for. These coding competitions focus on problem-solving and algorithmic coding skills to advance through every year’s online rounds, and after making it to the global finals they will be earning the grand prize. Some facts about Facebook Hacker Cup:

  • It consists of 4 online rounds which include Qualification round, round 1, round 2, round 3 and one onsite final round.
  • All of the 25 finalists get cash prizes.

Refer to our complete guide on How to prepare for Facebook Hacker Cup to begin your Facebook Hacker Cup journey.

8. Microsoft Imagine Cup

Microsoft Imagine Cup is held annually. The program invites participants to take on real-world problems that are submitted by NGOs, IGOs, and nonprofit organizations that can then take on as part of the Imagine Cup project. The main idea behind conducting such coding competitions and programming competitions is to code with a purpose that can help create new solutions. Some important facts about Microsoft Imagine Cup:

  • You must be at least 16 years old and actively registered as a student.
  • Students participate in a team of maximum 4 persons.
  • There are cash prizes and other benefits like training and mentorship from experts for global finalists.
  • There are also three regional finals.

9. Codeforces Coding Competitions

Codeforces is a website that hosts competitive programming competitions. It is one of the most popular websites for its exciting features. This is one of the top programming competitions to apply for. The polygon feature for creating and testing problems and social networking through internal public blogs. The participants are divided into ranks based on their ratings.

The best thing about Codeforces is that the contests are regularly conducted here as every month they organize nearly 6 contests. Also, participation in the contests is free and open to everybody.

(Video) The 21 Most Popular Coding Challenge Websites

Codeforces offers various types of coding challenges and features such as:

  • Short format Contests with a duration of 2 hours.
  • Educational Contests of 2-2.5 hours duration are conducted 2-4 times in a month.
  • You can challenge or hack other contestants’ solutions as well.
  • You can also solve problems from previous contests for learning objectives.

Refer to our complete guide on Best Tips to Get Started with Codeforces to begin your Codeforces journey.

10. Codechef Coding Competitions

CodeChef organizes programming competitions at the start of every month and conducts two smaller programming contests at the middle and end of the month. It also offers various algorithm tutorials and forum discussions to help your journey in computer programming more easily.

There are four types of contest Codechef host:

  • The Starters
  • The Long Challenge
  • The Cook-Off
  • The LunchTime

Refer to our complete guide on How to become a 4 star coder on Codechef in only 3 contests to help you kickstart your Codechef journey.

11. Topcoder Coding Competitions

Topcoder is a crowdsourcing company with a global community of developers, designers, data scientists, and competitive programmers. These coding competitions are conducted twice a year and are held both online and offline. The participants take challenges from across the world from all the leading brands such as Google, IBM, and eBay. They also conduct individual matches online every week that can help participants gain experience and do well in the competition.

12. Atcoder Coding Competitions

AtCoder is a programming contest website based in Japan. From this weekend, we will provide problem statements in both English and Japanese and AtCoder will be an international programming competition!
There are three types of official contests in AtCoder:

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  • AtCoder Grand Contest (AGC). This is our best contest. The problems will have high originality and require interesting observations.
  • AtCoder Regular Contest (ARC). The problems may be a bit typical compared to AGC problems, but still, we think most of you can enjoy them and they are good for practice.
  • AtCoder Beginner Contest (ABC). This is mainly targeted at those who are new to competitive programming. The problems will be easy and educational.

13. HackerEarth

HackerEarth is an Indian software company headquartered in San Francisco, US, that provides enterprise software that helps organizations with their technical hiring needs. HackerEarth is used by organizations for technical skill assessment and remote video interviewing.
All challenges organized by HackerEarth are listed on the Challenges Page. These challenges can be divided into the following categories. Monthly Programming Contests: Currently they have 3 monthly contests based on difficulty level. 1st of every month from 21:30 IST (16:00 UTC) to Midnight for a duration of 2 hours & 30 minutes.
The website offers thoughtful challenges mostly good for experienced programmers. They host monthly coding challenges and hackathons. Their challenge Code Monk is quite popular among programmers. ThoughtWorks, Amazon, Accenture, Walmart Labs, IBM, and Intuit are some leading companies of HackerEarth.

14. HackerRank

HackerRank is a competitive coding platform where it allows you to practice various coding problems and participate in many challenges. It provides various hackathons, and coding challenges and some companies conduct their hiring test here. The platform also gives you badges by solving challenges on the HackerRank website, and these badges will be added to your profile. This is one of the top programming competitions to apply for.

15. Leetcode

Leetcode is one of the largest tech communities with more than millions of active users. It offers various weekly and biweekly programming competitions for the participants. This also helps in job interview preparation; discussions are also provided on LeetCode. It hosts contests for 90 minutes where you can solve the challenges in their online editor, aka, playground in any one of the supported programming languages.

Conclusion:

Though the above mentioned coding websites are very common, there are other websites as well that are widely used by other users worldwide for coding practice and challenges, such as:

  • SPOJ
  • Khan Academy
  • LintCode
  • and many others.

Related Posts:

  • What Are The Best Resources For Competitive Programming?
  • Stuck in Programming: Get The Solution From These 10 Best Websites
  • 10 Best Coding Games to Advance Your Programming Skills

My Personal Notesarrow_drop_up

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FAQs

What is the best coding competition site for beginners? ›

The most popular Competitive Programming Websites are: 1)TopCoder 2) Coderbyte 3) Codewars 4) CodeChef 5) Codeforce 6) Hackerearth.

What is the most popular websites among programmers for problem-solving? ›

W3schools is the most popular website among programmers for problem-solving.

How do you win a coding challenge? ›

Step 4: Take part in different coding challenges and competitions and practice, practice and practice. Do not look at the solution after the first try. Try it many times. After many failures keep the problem aside and again try it after some days at last if you could not succeed in any case then look at the solution.

Is CodeChef easier than codeforces? ›

Codechef organises a 10 day long contest (good for beginners), Codeforces doesn't. I personally feel codechef is better for beginners to practise as the have a lot of problems sorted according to difficulty level.

Is CodeChef good for beginners? ›

CodeChef Long Challenge and CodeChef Starters are very good contests for beginners to participate in. CodeChef also hosts a global programming event Snackdown to compete with the other programmers.

Is CodeChef free for students? ›

CodeChef's YouTube Channels are also a source of free learning and knowledge for the community with video editorials and recorded problem-solving sessions from top-rated programmers.

Is HackerRank good for competitive programming? ›

A few websites which are good to practice competitive programming include hackerrank, codechef and once you are comfortable with reading and understanding competitive programming problems, move on to codeforces.

How do I increase my HackerRank rank? ›

You earn badges by solving challenges on the various practice tracks on our site. If you solve a challenge in an official HackerRank contest, you will earn points towards your progress once the challenge is added to the practice site.

Can we earn from HackerRank? ›

Yes! There are a few options: Compete. We run regular hackathons with cash prizes.

Do coding challenges work? ›

Yes, the more coding challenges you solve, your work gets more efficient. Many big companies evaluate your coding and problem-solving skills by challenging tricky coding. It is a crucial part of the recruitment process.

Can I earn money by competitive programming? ›

The answer is yes. This blog will discuss how you can develop your programming skills and earn money through coding while still in college. Participate in coding contests: While there are a lot of channels you can move towards to develop your skills, a lot of students choose the route of competitive programming.

Should I use Leetcode or Codeforces? ›

CodeForces is superior to Leetcode because the problems involve much greater depth and use of algorithms. They are more interesting than Leetcode, whereas most leetcode problems are often straightforward, or simple variants of well-known algorithmic problems.

Which is good HackerRank or HackerEarth? ›

Reviewers felt that HackerRank Developer Skills Platform meets the needs of their business better than HackerEarth Assessments.

How do you get 4 star CodeChef? ›

It depends on your performance in Contests. You should top (maybe stand in the top 100 in short contests) at least 2 contests to become 4*. If your performance is just above what is expected, your rating increases but very little. This way, it may even take 3 - 4 months to cross 1800.

How do you get 1 star in CodeChef? ›

Participate in Contests to increase your Rating (get stars). You can start with today's Lunchtime. Hi @rishabhkholiya, You get an official rating + star level after you compete in an official contest. For Example LunchTime, Long, Cookoff or Starters, Sometimes there are rated contest conducted by some institutions too.

How do you get 5 stars in CodeChef? ›

Understanding of algorithms and consistency will help you in being 5 star. Give each and every contest for let's say 3 months. Try to upsolve as much as you can. You can learn algorithms as well during/after contest by searching it what you wanna do on Google appropriately as and when required.

Which language is best for competitive coding? ›

  • C++ Indeed, C++ is one of the most recommended and widely used programming languages for Competitive Programming. ...
  • JAVA. Here comes another most recommended programming language for Competitive Programming — JAVA. ...
  • Python. ...
  • Ruby. ...
  • Kotlin.
11 May 2022

What is the best problem solving website? ›

Writing code is also all about problem-solving.
...
  1. HackerEarth. ...
  2. HackerRank. ...
  3. Exercism. ...
  4. SPOJ. ...
  5. Programmr. ...
  6. TopCoder Challenges. ...
  7. CodeForces. ...
  8. CodeWars.
11 Apr 2020

Is 3 star in CodeChef good? ›

Bro, become 3 star, you will get the answer why codechef 3 star is “so easy”. Then become 4 star, you will get the answer why codechef 4 star is “so easy”. Like me, many people use codechef as their primary platform. So it's obvious that some people have higher ratings in codechef.

How many hours should I practice competitive programming? ›

You can become a good competitive programmer only by participating in short contests (2 to 2.5 hours). After a couple of long contests, you should focus on participating in as many contests as possible across platforms like CodeChef, Codeforces, AtCoder, etc.

Is LeetCode enough for coding rounds? ›

Coders have debated that Leetcode is useful for them to get used to data structures and algorithms initially and can even improve the applicant's problem-solving skills. But even then, it doesn't completely encapsulate the programming aptitude of an applicant.

Can I earn money by coding? ›

There are many incredible ways to make money online with programming skills. (And it's even possible for you to get paid to learn code online…but more on that in a bit.) If you learn various coding languages and programs, then you can offer your skills online and start generating cash fast.

How can a CS student make money? ›

Coding competitions like ACM ICPC, Monthly Cook-off challenges, and more are a great way to earn.

Is LeetCode free? ›

Is LeetCode Free? The basic version of LeetCode is free, while LeetCode Premium currently costs $35/month or $159/year.

Who is the best Competitive Programmer? ›

As of December 2021, Gennady is the highest-rated programmer on Codeforces, CodeChef, Topcoder, AtCoder and HackerRank.
...
Gennady Korotkevich
Known forProgramming prodigy; highly ranked sport programmer from an early age
AwardsCodeforces peak rating 3979 (22 January 2022)
5 more rows

Do employers look at HackerRank? ›

Yes the companies do get to see the code, however whether they go through it rather than seeing the result of the test cases, varies from company to company. Most companies do not evaluate the running time, they are okay if the test cases pass.

Is HackerRank completely free? ›

All Free. No Credit Card Required.

Which is better SPOJ or Codechef? ›

being totally novice, i would say Codechef >= Spoj > Topcoder. However, after gaining some prog skills i think, one would do his best if he leaves Codechef 4ever. Considering current administration, Codechef is evil after one gains few prog skills. Because, it doesnt help you to learn any kind of algos.

How many coding problems should I solve in a day? ›

Almost 7-8 questions a day within the timeframe of 4-6 hours are good enough.

Is Python good for competitive coding? ›

Oftentimes, programmers wonder if knowledge in Python programming is enough to help them ace competitive coding. The answer is a resounding 'yes! '.

How does HackerRank detect cheating? ›

For Coding assessments, in particular, HackerRank uses a powerful tool to detect plagiarism in the candidates' submitted code. The Test report of a candidate highlights any plagiarized portions in the submitted code and helps evaluators to verify the integrity of answers provided in the Test.

Can you put HackerRank on resume? ›

If you have been competing in official competitions online organized by coding platforms like HackerEarth, Hackerrank, and Codechef or any other major testing platforms related to your domain for a long time and achieved a major milestone at any point then this field will be the perfect one to showcase your talent and ...

What is HackerRank success rate? ›

MediumMax Score: 60Success Rate: 46.92%

What is a good HackerRank score? ›

The rating will be a score in the range of 90 - 100 (inclusive) points.

Does HackerRank record screen? ›

Before taking up a Proctored Test, you must allow HackerRank to access and enable your webcam. Once you begin the Test, the webcam captures and records periodic snapshots of your activities till the Test ends.

Can competitive programming get you a job? ›

Competitive programming also increases your problem-solving speed which provides an edge over other applicants. Makes you a desirable Candidate for major Companies Big companies like Apple, Google and Facebook want talented and smart people to work with them.

Should I email after a coding challenge? ›

Ideally, you should write a thank-you email to everyone and anyone who takes the time to interview you throughout the hiring process. This can include the person who performed the initial phone screen to the person who administered the coding challenge to the final-round behavioral interviewer.

How do you pass a live coding challenge? ›

Practice, practice, practice

To avoid this from happening, it's absolutely essential to practice and get used to the idea. Team up with colleagues or friends, have them interview you and do live coding challenges together. Also, during these preparations, it could be a good idea to practice out loud.

How do I prepare for HackerRank challenge? ›

How to prepare
  1. Warm-up Challenges. New to HackerRank? ...
  2. Arrays. 70% of companies test this subject. ...
  3. Dictionaries and Hashmaps. 40% of companies test this subject. ...
  4. Sorting. 40% of companies test this subject. ...
  5. String Manipulation. 40% of companies test this subject. ...
  6. Greedy Algorithms. ...
  7. Search. ...
  8. Dynamic Programming.

How do I monetize my programming skills? ›

Here are 12 money making methods to monetize your coding skills:
  1. Method 1: Freelancing.
  2. Method 2: Full-time job.
  3. Method 3: Tech entrepreneurship.
  4. Method 4: Mobile applications.
  5. Method 5: Blogging.
  6. Method 6: WordPress themes and plugins.
  7. Method 7: Scripts and software.
  8. Method 8: YouTube channel.

Which coding platform is best for beginners? ›

Here are the best coding practice websites:
  • TopCoder.
  • Coderbyte.
  • Codewars.
  • CodeChef.
  • Codeforce.
  • Hackerearth.
3 Sept 2022

Who is the best competitive programmer? ›

As of December 2021, Gennady is the highest-rated programmer on Codeforces, CodeChef, Topcoder, AtCoder and HackerRank.
...
Gennady Korotkevich
Known forProgramming prodigy; highly ranked sport programmer from an early age
AwardsCodeforces peak rating 3979 (22 January 2022)
5 more rows

Can we get job through CodeChef? ›

With the heightened skill levels, we also want to ensure that the community gets ample opportunities in the industry. In this page, we will list the job openings from the industry covering big companies to rising startups - all of whom are looking for coders from our community.

Is HackerRank good for competitive programming? ›

A few websites which are good to practice competitive programming include hackerrank, codechef and once you are comfortable with reading and understanding competitive programming problems, move on to codeforces.

Do Google hire from TopCoder? ›

The top-ranked users on TopCoder are very vigorous competitive programmers and regularly compete in programming competitions. Companies which hire from Topcoder include Google, Yahoo, Nvidia, Microsoft, Paypal, Verizon, Citigroup, J.P. Morgan, Cryptic Studios and many more.

Can Elon Musk code? ›

Early Life And Coding

According to the book Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future, Elon Musk started coding at the young age of 10. At this point in his life, he became fascinated by a 5GB memory computer called a Commodore VIC-20.

Is Zuckerberg a good coder? ›

And Zuckerberg's peers don't place him in the uppermost tier of skilled coders, according to TopCoder, a site where coders improve and rank their skills. He's only in the third level.

Who is the No 1 coder in India? ›

DEHRADUN: Kalash Gupta, a third-year computer science student at IIT Delhi got the coveted 'World's Best Coder' title along with a prize money of $10,000 by emerging on the top of the list of over 1 lakh coders from 87 countries who participated in the tenth season of Code Vita, a global programming competition held ...

Is Gfg enough for placements? ›

But obviously, it is not at all enough to get you prepared from placement perspective. This is because companies focus on core data structures and algorithm concepts along with other important CS subjects.

How do you get 4 star CodeChef? ›

It depends on your performance in Contests. You should top (maybe stand in the top 100 in short contests) at least 2 contests to become 4*. If your performance is just above what is expected, your rating increases but very little. This way, it may even take 3 - 4 months to cross 1800.

Can I get job just from competitive programming? ›

Competitive programming also increases your problem-solving speed which provides an edge over other applicants. Makes you a desirable Candidate for major Companies Big companies like Apple, Google and Facebook want talented and smart people to work with them.

Is LeetCode enough for coding rounds? ›

Coders have debated that Leetcode is useful for them to get used to data structures and algorithms initially and can even improve the applicant's problem-solving skills. But even then, it doesn't completely encapsulate the programming aptitude of an applicant.

Which is good HackerRank or HackerEarth? ›

Reviewers felt that HackerRank Developer Skills Platform meets the needs of their business better than HackerEarth Assessments.

Do employers look at HackerRank? ›

Yes the companies do get to see the code, however whether they go through it rather than seeing the result of the test cases, varies from company to company. Most companies do not evaluate the running time, they are okay if the test cases pass.

Which brand is best for coding? ›

The best laptops for programming available now
  1. MacBook Pro 16-inch (2021) The best laptop for programming in 2022. ...
  2. Razer Blade 17 (2022) ...
  3. MacBook Pro 14-inch (2021) ...
  4. Apple MacBook Air (M2, 2022) ...
  5. LG Gram 17 (2021) ...
  6. Asus ROG Flow Z13. ...
  7. MacBook Pro 13-inch (M2, 2022) ...
  8. Microsoft Surface Laptop 4.
4 Oct 2022

Can I crack Google without competitive programming? ›

YES, there are a lot of people who cracked companies like Google without doing CP at all. And NO, it's not a necessity that you've to be very good at CP in order to get into Google (or any company for that matter). The companies only test your problem-solving skills in the form of Data Structures and Algorithms.

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