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Coding problems by topic

Pick the topic you are working on, from beginner loops to dynamic programming and graphs. Every problem is checked by hidden tests, runs in 14 languages and pays XP and Aura on your first accepted solve.

Solve these free. Get paid in XP and Aura.

One tap with Google, no card. Every first accepted solve pays XP for the leaderboards and Aura for real goodies.

Coming from LeetCode or HackerRank?

You already know how this works. The Arena keeps the parts you are used to and pays you back for the practice you do anyway.

How the Arena compares

Feels familiar

  • Problem statement, examples and constraints
  • Run on the examples or your own input
  • Hidden tests decide: you see which one failed
  • Easy, medium and hard, the usual interview topics
  • 14 languages, plus SQL (MySQL-friendly)

What is new here

  • A new problem every day at midnight India time
  • A harder set every week and one big monthly challenge
  • Every first solve pays XP and Aura
  • Aura buys real UptoSkills goodies
  • Free account: no card, one tap with Google

LeetCode and HackerRank are trademarks of their owners. UptoSkills is not affiliated with them.