The full text is 4567 words, and the estimated learning time is 16 minutes
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We usually divide a generation in 10 years, and 2020 is a special year, representing the end of one decade and the beginning of another.
In the past decade, human society has prospered and developed, and great breakthroughs have been made in science and technology. The Curiosity probe first landed on Mars in 2012, detected deep-space gravitational waves in 2015, introduced the gene-editing superpower CRISPR in 2018, and "took" the first picture of a black hole in 2019.
If asked what the biggest map of the past decade has been, AI is unquestionably elected. It is precisely because of the emergence of artificial intelligence that science fiction has truly entered human life. Machine learning gives machine learning the power, while deep learning — a heavy task of reconstructing the complexity of the human brain through artificial neural networks — gives machines their own thinking.
As technology continues to advance, deep learning experts are working to create an artificial general intelligence — a machine that can perform any form of operation like a human.
Every technological leap mentioned above can be achieved with the help of computer programming. The Curiosity rover can explore Mars alone without human intervention by pre-programming; mapping black holes requires an algorithm to collect imagery data from a network of satellites on Earth's surface.
It is this fusion with computers that has led to many of today's scientific breakthroughs. Without it, our society would stagnate.
Anyone can write code
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In this age of exponential data growth, everyone, whether it's an institutional founder, CEO, business leader, or venture capitalist, old or young, should master coding. As economic disparities continue to widen and inequalities persist, coding will be an essential skill for survival.
The good news is that anyone can learn to code! Although it is indeed not easy. But with curiosity, determination, and pure will, you can achieve your goals. The code itself is also written to solve the problem. This is the basic concept behind programming. Coding is often used to automate a monotonous task.
One of the best ways to learn to code is to practice, and it's a lot of practice, and get into the habit of coding. What better way to improve your skills than by participating in coding challenges and coding competitions?
Here are 20 websites where you can practice programming and solve complex algorithmic problems. All sites are ranked in no particular order, so check it out!
1.CodeWars
The Codewars platform is well designed so that users can participate in challenges together. Behind it are two teams that keep it running, the platform developers, who empower kata to teach various techniques, use heuristic methods to solve kata, and give constructive feedback; and the platform leaders, who mainly coordinate the content of the platform and the community.
type:
· Kata (Coding Practice)
· Kumite (One-on-One Challenge)
· forum
· Wiki
The biggest advantage: Codewar's interface is beautiful and simple, presenting challenges in a unique way, and naming it Katas, where programmers can gain skills and challenge other programmers in Kuumite. Codewar is one of the best programming learning sites.
2.CodeChef
CodeChef is a competitive programming platform designed to help programmers improve their skills in the areas of algorithms, programming, and competitions. This large community of problem managers promotes a culture of active learning and friendly programming.
peculiarity:
· practice
· race
· discuss
· Contests can be hosted
· Campus chapter
Biggest advantage: CodeChef is one of the most competitive programming platforms, open to everyone, allowing programming competitions to be held, and offering a feature called the "campus chapter" for programming clubs to use. Codechef also hosts 3 races per month and awards prizes.
3. CodeGym
CodeGym is an 80% practice-based online Java programming. Anyone who wants to learn Java can come here to learn.
· course
· task
· Game
· chat room
Biggest advantage: CodeGym provides Java beginners with practice tasks to help them understand the knowledge they need. There is also instant solution validation for immediate error discovery. CodeGym also incorporates the latest teaching techniques with stunning visualizations and gameplay.
4. HackerRank
HackerRank is a recruitment platform designed to assess developer skills for more than 2,000 companies worldwide. HackerRank enables technology recruiters and hiring managers to objectively assess talent at every stage of the hiring process, helping businesses hire skilled developers and accelerate innovation.
peculiarity:
· Programming exercises
· Interview preparation
Biggest advantage: HackerRank is one of the top programming practice sites, known for matching developers with large companies, and is a great help for both employers and employees.
5. Exercism
Exercism starts with language tracking, allowing users to choose their preferred language. In addition, mentors will check user code and help users take it to the next level as they improve. If beginners want to learn more about a programming language, the platform is simply tailored for it.
· Language tracking
· Private guide
· Practice mode
Biggest advantage: Exercism starts with language tracking, allowing users to choose their preferred language. In addition, mentors will check user code and further improve programming capabilities as users progress. If beginners want to learn more about a programming language, the platform is simply tailored for it.
6. DATE
SPOJ website design is simple, but it contains a large number of coding challenges to help developers grow into true programming gurus and achieve the skills to build efficient algorithms.
· contest
· algorithm
· ranking
· state
· Talk pages
Biggest advantage: SPOJ has a large number of extremely difficult coding challenges to test the real strength of developers, while developers can also participate in some competitions to demonstrate their individual skills.
7. HackerEarth
HackerEarth is a popular programming platform with over 8,000 programming questions, 2,000 programming challenges, and 1,000 hackathons. Hiring managers from more than 1,000 companies trust it. The platform has a wide audience of 3 million developers.
· Exercises (basic programming issues)
· Races (from beginner races to week-long hackathons)
· Hackathon (solving real-world problems and business challenges)
· Data Science Competition (testing data science skills)
The biggest advantage: The website can display the remaining time of the competition, and its developer evaluation software can show the progress of the competition. The website also has a remote interview function and corresponding data analysis for the company's background to view.
8. Programmr
Programmr is a coding learning and hands-on online interaction platform for all developers. They believe that the best way to learn is to learn at a personal pace in a self-learning environment. Programmr claims to be the best programming simulator in the world, allowing developers to write and run programs.
· challenge
· project
· certificate
Biggest advantage: Programmr has a great online coding simulator and B2B API that allows developers to integrate coding widgets into their websites.
9. TopCoder Challenge
TopCoder is a highly competitive programming platform. The platform provides a set of algorithmic challenges that users can solve in their own code editors. The challenges on the site are varied and you can take part in them whenever you wish.
· Bytes work
The biggest advantage: Each challenge has a specific deadline and a certain prize, and also shows the desired language or library. While these challenges aren't for beginners, they're great at website building.
10. CodeForces
CodeForces is a collaborative platform that allows programmers to participate in time-limited "rounds" and gives points to participants accordingly. Codeforce also has competitions, problem sets, and teams for programmers to collaborate with.
· arena
· Problem set
· team
Best Of All: CodeForces is perfect for programmers who want to find fun challenges to improve their skills and join a team that suits their needs. The functionality of the arena is also very unique, where programmers can train their skills through specific challenges and view the rankings at the end.
11. CodePen Challenge
CodePen is a cool online integrated development environment (IDE) that allows users to write code in the browser and see the results as they build the code. The CodePen Challenge is designed to improve developer skills by writing code. Every week there are new challenges waiting for you to explore, and the best "Pens" are singled out.
· Podcasts
· educate
The biggest advantage: The CodePen challenge is very interesting, combining creativity and collaboration. Competition is completely empty talk, because users have nothing to lose, but can gain skills by participating in these challenges.
12. LeetCode
LeetCode is the best platform to help developers improve their skills, expand their knowledge, and prepare for technical interviews. Thousands of programmers use it to collect algorithmic practices from Amazon, Facebook, Google, LinkedIn, and more. The platform contains more than 1400 questions to practice.
· database
· frame
· Concurrency
Best Of All: LeetCode's exploration tools help programmers move to the next level of their programming careers. LeetCode prepares them for technical interviews and helps companies hire top talent.
13. GeekForGeeks
GeeksForGeeks is a geek-owned website with plenty of resources on programming and algorithms. This also includes an interview session that helps programmers win their dream job. There is also an excellent collection of C and C++ problems for programmers to solve.
· interview
· Students
· Test
Biggest advantage: GeeksforGeeks covers a large number of articles on teaching topics such as data structures, algorithms, computer science, and quizzes to test knowledge and comprehension. It's a great platform to learn about computer science.
14. ProjectEuler
If you're learning algorithms and computer programming, you've probably heard of Project Euler. Project Euler is a set of mathematical problems designed for people interested in combining math and programming to solve problems. It requires developers to use mathematics to form algorithms and get effective solutions, and then to actually solve problems through computer programming. These problems are difficult and not easy to solve.
· Archive issues
· message
Biggest advantage: Although the site lacks a built-in code editor or solution checker, this allows programmers to download the IDE and code in it. In addition, since mathematics is the foundation of algorithms and data structures, solving these problems helps to achieve some of the skills that programmers must have.
15. CodinGame
CodinGame aims to allow programmers to continuously improve their programming skills by solving some of the world's most challenging problems, learning new concepts, and getting inspiration from the best developers.
· contribute
· Learn
Biggest advantage: CodinGame helps users learn to code in the form of games, allowing them to learn in a fun way. Developers can also ask mentors for help, invite mentors to check their code, or compare solutions with other developers.
16. OnlineJudge URI
The platform was developed by the Department of Computer Science at the University of Rhode Island (URI). The main goal of the project is to provide programming practices and knowledge sharing. The site has an easy-to-use user interface with more than 1,000 questions, divided into 8 categories, which can be solved in 11 languages.
· Question library
· Competitions and rankings
· College developer
Biggest Advantage: URI is a platform developed by college students, which means it holds a beginner mindset that wants to learn to code in a fun way. In addition, the composition of these problems is representative and divided according to needs, starting with the beginner's category and gradually evolving into more complex categories such as computational geometry and graphs.
17. KickStart — Google Coding Contest
Kick Start is a competition launched by Google that gives programmers around the world an opportunity to improve their skills through online competitions. Each round lasts 3 hours and features these algorithm challenges developed by Google engineers, so developers can experience what it's like to work at Google. Competitions are held regularly and everyone has the opportunity to participate.
Biggest advantage: Top-ranked programmers have the opportunity to be interviewed and may even get a job at Google. Another big coding competition that Google is organizing is Hashcode.
18. Code Jam
Code Jam is Google's longest-running global coding competition, where programmers of all levels can test their skills. Entrants must go through a series of algorithmic problems to secure a place in the World Finals and have a chance to win the championship and a hefty $15,000 prize money.
Biggest advantage: Code Jam is a 4-round online competition that allows programmers around the world to solve complex algorithmic problems to complete the challenge, and the annual Code Jam World Finals are held at different Google International Affairs offices. This ambitious challenge allows programmers of all levels to gain experience and motivates them to improve their individual skills to earn a place in the finals.
19. Respond to challenges
The "Reply Challenge" is a series of challenges designed by the "Replyer" and is open to anyone who loves technology and online competitions. The "Reply Challenge" is all about finding fun and showcasing talent in areas such as coding, cybersecurity, creativity, and investing. Each challenge has great prizes – Macbook Pro 16, Airpods Pro, and more. These challenges are open to students and professionals.
· Investment challenges
· Code challenge standards
· Code challenges teens
· Cybersecurity Challenges (Coming Soon)
· Creatives (coming soon)
Biggest advantage: The reply challenge is very interesting, the prizes are rich and attractive, the challenges are diverse, and they are free and open to the public.
20. Kaggle Learn
Kaggle is known for the collaborative competition among data scientists. But they also have a platform called Kaggle Learn for offering micro-courses. Through these small courses, data scientists can learn practical data skills and put them into practice immediately.
They call it the fastest and most fun way to become a data scientist or improve your existing skills. The platform includes courses on Python, panda, SQL, and data visualization.
· tutorial
Biggest advantage: These mini-courses condense complex topics into important sections, helping beginners learn important topics and acquire the necessary skills in a short period of time. Its built-in code editor, kernel, easy to use, perfect for beginners.
Not only are there competitions and challenges for learners of different levels, but you can also get great rewards while fighting monsters and upgrading, what are you waiting for?
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