LeetCode
LeetCode is the best platform to help you enhance your skills, expand your knowledge and prepare for technical interviews. Explore is a well-organized tool that helps you get the most out of LeetCode by providing structure to guide your progress towards the next step in your programming career. Over 1900 questions for you to practice. Come and join one of the largest tech communities with hundreds of thousands of active users and participate in our contests to challenge yourself and earn rewards. Not only does LeetCode prepare candidates for technical interviews, we also help companies identify top technical talent. From sponsoring contests to providing online assessments and training, we offer numerous services to businesses. We now support 14 popular coding languages. At our core, LeetCode is about developers. Our powerful development tools such as Playground help you test, debug and even write your own projects online.
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Topcoder
Topcoder is the world’s largest technology network and on-demand digital talent platform with more than 1.6 million developers, designers, data scientists, and testers around the globe. Topcoder empowers organizations including Adobe, BT, Comcast, Google, Harvard, Land O’Lakes, Microsoft, NASA, SpaceNet, T-Mobile, US Department of Energy, Zurich Insurance, and more, to accelerate innovation, solve challenging business problems and tap into hard-to-find technology skills. Topcoder was born in 2000. We’ve listened to our customers through the years and created 3 useful ways for you to engage and execute with our amazing talent. Incredible digital and technology talent, ready to work. Scope, start and execute work much faster. Better talent, better outcomes. It’s not rocket surgery. You’re not alone. Access traditional professional services if you want extra guidance. You don’t have to change. Tap open APIs and integrations to work in approved environments.
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Evalato
Evalato is the next-gen awards management software that helps you collect entries, empower judging, and recognize the worthiest winners.
It’s the go-to solution for award managers, program managers, grant makers and any professional who organizes awards, competitions, contests and other programs.
Trusted by brands like UN, WWF, Red Cross, Reuters, University of Oxford, Messe Frankfurt, Vodafone and hundreds of other organizations, Evalato helps you work smart and delight your community.
It's the perfect solution for media groups, associations, event companies, agencies, non-profits, corporations, and any organization that runs awards or other programs. Evalato supports 40+ languages and 160+ currencies and could be integrated with 2000+ apps.
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AtCoder
AtCoder is a programming contest website based in Japan. AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online. Every AtCoder users can use this library with minimum efforts of studying about PC. Maximize convenience for the usage in competitive programming. We completely ignore other usages. Participants can use any programming language used in AtCoder Regular Contest. Unless otherwise specified, you must compete in a contest alone. We do not allow you to team up form with others. The contestant who gives successful solutions to the largest number of problems in a given time will be the winner. If there are multiple contestants who have solved the same number of problems, whoever has done so in shorter time will be in the higher place. Execution time is measured as the maximum of real time and CPU time. Parallelization is not prohibited, but it does not lead to shorter execution time.
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