Coding is a skill that can’t be taught. It is only learned through practice.
As more and more people learn the importance of computer coding, they start looking for better resources to help them learn the skills they need to become good coders.
If you are a programmer and looking for a place to sharpen your skills, this post will help you find the best platforms to compete in. Here, we list the top coding challenge websites that offer a variety of programming challenges that will test your skills and knowledge.
Topcoder is one of the original platforms for competitive programming online. It was founded in 1994 by Jeff Duntemann, who was a graduate student at Stanford University when he created it. Today, Topcoder hosts over 500,000 competitions each year. Competitions range from small challenges (e.g., “Find the longest palindrome using only 5 chars”) to large-scale contests such as the annual Code Jam. Some of the largest and most well-known computer programming competitions are hosted by Topcoder. These include the International Collegiate Programming Contest, the ACM International Collegiate Programming Competition, and the European Programming Contest.
Coderbyte provides 200+ coding challenges. Coders can submit their solutions and vote for the best solutions submitted by other coders. Users can view the code snippets that the top-voted answers use, and can vote on these snippets to help improve them. Coders can also track how many times they have been challenged and how many points they have earned.
Project Euler provides a large collection of challenges in the domain of computer science and mathematics. It consists of hundreds of problems with the aim of testing a candidate’s ability to solve challenging programming problems. Each problem is a small mathematical challenge and has a simple solution. The problems range from easy to very difficult, and they are grouped into categories such as computational, logic, data structures, and algorithms, etc. The problems have been carefully selected to be of interest to the general public. They are also accessible to programmers of all levels of experience.
HackerRank is an online platform that allows anyone to test their skills against a diverse set of challenges. These challenges include things like system administration, software programming, network security, cryptography, reverse engineering, and more. To date, over 500 million people have completed more than 1.0 billion tests on the platform.
Exercism.org is a website that provides free exercises for programming language concepts. It is run by a team of volunteers from the programming community. Each exercise includes a description of the problem, a solution using a particular programming language, and a test case. All of the exercises are set up in such a way that they can be solved by reading the text, without needing to actually write any code. Exercism.org has a huge library of exercises and is often the starting point for new programmers.
Codewars provides a large collection of coding challenges submitted and edited by their own community. The challenges are divided into two types: those for beginners and those for intermediate coders. The former is designed for people who have never coded before, while the latter is aimed at intermediate coders who have already been developing some programming skills. There are currently over 200 challenges available, which include topics like logic, data structures, algorithms, software design, game design, networking, machine learning, and more.
SPOJ (Sphere Online Judge) is an online judge system with over 315000 registered users and over 20000 problems. It is an open-source project that is developed by the Sphere Project. The purpose of this project is to create a platform for anyone to write questions and then have them judged by a panel of experts. A problem is defined as a set of instructions and an answer, and it consists of a question and an answer.
CodinGame is a challenge-based training platform for programmers where you can improve your coding skills with fun exercises. You can learn about coding, test your skills, and play games. CodinGame is used by thousands of developers to learn new languages and technologies. It also provides a great way to get feedback on your code.
- 1. TopCoder
- 10. GeeksforGeeks
- 11. freeCodeCamp
- 12. Codeforces
- 13. Geektastic
- 14. Programmr
- 16. CodeGym
- 17. CodePen Challenges
- 18. KickStart — Google’s Coding Competitions
- 19. Kaggle Learn
Geeksforgeeks (GFG) is an online resource for mathematical puzzles, questions, and answers. It is a free repository of problem sets, exercises, and solutions that are contributed by its community members. You can use the site to check your own answers against others’ solutions, and you can also use it to learn math concepts and solve problems. It is part of the Internet Archive project and was created by Manish Jain.
Codeforces is a website that hosts competitive programming contests. Codeforces is a community-driven website that allows you to create your own programming contest. The idea is to provide a platform where people can come together and solve challenging problems.
Programmr is an online lab for programming enthusiasts to assess, improve and showcase their programming skills. It is a platform for users to share their projects and discuss programming ideas with other programmers.
CodeGym is an online Java Programming that is 80% based on practice. For anyone who wants to learn Java, here is the place to go. CodeGym offers two modes of learning – Java 1 and Java 2. The Java 1 mode is for those who want to learn Java. It is a very basic and simple Java course. The Java 2 mode is for those who want to learn Java from scratch. It is a very advanced Java course. You can choose any model that suits your needs and level of experience.
CodePen challenge is a place for leveling up your skills by building things. Each week, we ask you to create something new and interesting using the CodePen platform. We have three different categories – web, mobile, and desktop. Each category has a different theme for you to work on.
KickStart is Google’s annual coding competition. This is a global coding challenge that anyone can participate in, and anyone can win. Each year, the competition consists of two parts: an online part and a face-to-face part. In the online part, the competitors are given a problem and have only a few hours to complete it. They are then ranked based on how well they complete the task. In the face-to-face part, the top 100 competitors come together at Google headquarters to compete against each other in a live coding session. At the end of the competition, Google selects the top three winners and rewards them with a cash prize.
19. Kaggle Learn
Kaggle is famous for being the place where data scientists collaborate and compete with each other. It is a global platform for machine learning competitions. It has become one of the largest platforms for data science contests and competitions. Kaggle is a platform that allows data scientists to share their knowledge and expertise with others.
What Are The Best Resources For Competitive Programming?
There are several resources for competitive programming which you can use to improve your skills and prepare for the hackerrank challenges.
www.hackerrank.com – This is the official site for programming challenges. Most of the challenges here have multiple languages available, so it’s easy to work on this site.
How to begin with Competitive Programming?
First, you need to work on solving basic problems. There are many websites like codeforces.com or leetcode.com that provide these problems in abundance. Try to solve at least a few of them every day and keep track of your progress. Try to get as much practice as possible by solving as many problems as you can.
It is advised to solve problems of different difficulty levels. Start with problems that have multiple ways to solve them.
What is Competitive Programming and How to Prepare for It?
Competitive programming is basically the process of solving programming problems within a time limit. You have a certain amount of time to solve each problem and the goal is to finish as many as possible. In competitive programming, you need to be good at a few things – coding, debugging, and analysis.
What are the best websites to practice coding for beginners?
There are many resources available for learning how to code. If you want to learn Java, then you should consider Codeacademy. They offer free lessons and interactive projects to help you get started. On the other hand, if you’re more into Python, then Codecademy is a great option. They have a wide variety of free projects and tutorials that you can use for learning how to code. And they have a very active community of programmers too!
What is a coding challenge?
Coding challenges are a type of programming contest that aims to see if you are able to solve complex problems in a short amount of time. Some examples of coding challenges are Topcoder, HackerEarth, Hackerrank, CodeChef, CodinGame, and HackerRank.
Which coding language should I learn first?