text: If you’re feeling cocky, you can also take advantage of TopCoder’s single-round matches that pit you against another coding competitor. Put your skills on the line with this well-crafted and respected challenge site and push through to the next level.
  SPOJ, or Sphere Online Judge, is a multifaceted coding platform for students. With over 700,000 users and 25,000,000 submissions, SPOJ offers a huge base of knowledge to anyone willing to look.
  A great feature of HackerRank’s is how integrated they are with prospective employers. On HackerRank, you can create a resume to be viewed by companies, and you can take on coding challenges provided by businesses. Do well on the problem and you might find yourself in a job interview!
  In addition to coding questions and challenges, LeetCode helps you engage in an active community of peers. Students help each other solve coding problems by providing examples and exchanging ideas. LeetCode also helps students connect with companies and can help you prepare for a technical interview with coding challenges.
  CodeForces offers a myriad of programming tests, competitions, and practice projects. Each time CodeForces holds a contest, it displays the participants on its ‘Contests Page’ and describes the project. Challenges also include a countdown, allowing you to see when it began and how much time you have.
  Are you looking for a boundless cornucopia of coding challenges? Take a web stroll over to CodeChef. CodeChef is based in India, and it taps that country’s substantial programmer base to offer a whole heapin’ helpin’ of coding challenges.
  "Career Karma entered my life when I needed it most and quickly helped me match with a bootcamp. Two months after graduating, I found my dream job that aligned with my values and goals in life!"
  Venus, Software Engineer at Rockbot
  Project Euler offers a series of complex computer programming challenges, along with math testing and practice problems. The site offers challenges of varying difficulty, so people from all coding backgrounds can find something that fits their skill levels. You can set up an account and track your progress as you continue to learn, and gradually select challenges of increased difficulty.
  Project Euler aims to help programming students increase their skills by slowly challenging themselves to unfamiliar coding problems while remaining (mostly) within their comfort zone.
  - Project Euler