13 best websites with Computer Science problems:

• E-olymp (e-olymp.com) Ukraine
• Codeforces (codeforces.com) Russia
• Topcoder (topcoder.com) USA
• Codechef (codechef.com) USA
• Hackerrank (hackerrank.com) USA
• Facebook Hacker Cup (facebook.com/hackercup/) USA
• Google Code Jam (code.google.com/codejam) USA
• Russian Code Cup (russiancodecup.ru) Russia
• acmp.ru Russia
• informatics.mccme.ru Russia
• CodeCombat (codecombat.com) USA
• CodinGame (codingame.com) USA
• Empire of Code (empireofcode.com) USA



 

Автор матеріалу - damHuman