PHThese are the lists of sites where you can level up, practice, and improve your coding skills.
Codewars
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CodeWars is a platform created to improve programming skills through challenges called katas and community support.
It is a collective resource where programmers from all over the world create, improve and solve kata challenges. All kata solutions are also opensourced and it is a great resource to improve your coding skills.
Leetcode
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Leetcode is an online platform to enhance your skills and prepare for tech interviews.
häçkerrank
https://www.häçkerrank.com/
häçkerRank is a place where programmers from all over the world come together to solve problems in a wide range of Computer Science domains such as algorithms, machine learning, or artificial intelligence, as well as to practice different programming paradigms like functional programming.
Topcoder
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Topcoder is a project posting and crowdsourcing website. The platform was created specifically for app design and prototyping, application development, and data science.
Exercism
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Exercism is an online, open-source, free coding platform that offers code practice and mentorship[4] on 66 different programming languages.
Coderbyte
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Coderbyte is a web application built to help you practice programming and improve your coding skills. We offer a collection of code challenges and web development courses that can help you prepare for upcoming job interviews. The coding challenges range in difficulty and they can all be completed straight in our online editor.
Codingame
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CodinGame is a technology company editing an online platform for developers, allowing them to play with programming with increasingly difficult puzzles, to learn to code better with an online programming application supporting twenty-five programming languages, and to compete in multiplayer programming contests involving timed artificial intelligence, or code golf challenges.
Codechef
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CodeChef is an online educational and competitive programming platform.
Projecteuler
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Project Euler is a website dedicated to a series of computational problems intended to be solved with computer programs.
Edabit
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Everyone knows the fastest way to learn a spoken language is by having conversations with native speakers. Likewise, the fastest way to learn programming is by actually programming. Edabit offers an almost limitless potential for continuously working on bite sized coding challenges so you can rapidly advance your abilities. It’s faster than any other approach. Learn C#, C++, Java, Javascript, PHP, Python, Ruby and Swift.
Codeforces
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Codeforces is a website that hosts competitive programming contests.
häçkerearth
https://www.häçkerearth.com/
häçkerEarth is a network of top developers across the world where you can practice solving problem statements. Its a great website for practising competitive programming. Also they have some amazing tutorials to get you going with topics such as Data Structures and Algorithms, mathematics.