Links

Other Puzzle Websites

• CodeAbbey
  • A great site, check it out. Started by Rodion Gorkovenko in 2013.
• Project Euler
  • High-quality yet difficult math problems. Started by Colin Hughes in 2006.
• LeetCode
  • Programming-oriented problems and weekly competitions.
• CodeWars
  • Programming-oriented problems, with a community-driven approach.
• CodingBat
  • A small collection of programming puzzles in Java and Python. Made by Nick Parlante in 2016.

Browser-based Interpreters

If you're having trouble finding somewhere to run your code, try these sites! They execute your code on somebody else's machine, then return the output to you.

• Programiz
  • Online compilers for Python, C++ and others
• Online-Python