• Scaling issues: The games table is huge

    We store the game data for every game that’s played on the site. We’ve never faced a scaling issue as such but today ...

  • Stock Prediction

    The Stock Prediction Challenge was one of the vaguer challenges in the hackathon. Instead of having a set problem to ...

  • Travelling Blimp Salesman

    The Traveling Blimp Salesman challenge was one of the more complex challenges on the hackathon. There are many potent...

  • Mancala

    If you just wanted to get a few points quickly on the hackathon, you could have done the Mancala challenge. Mancala i...

  • Leibniz CodeGolf

    Leibniz was one of the simple challenges in the Hackathon. All you needed to do was use the Leibniz formula to calcul...

  • Bead Ornaments Challenge

    The Bead Ornaments problem was one of the difficult challenges on Saturday’s Hackathon. While it was easy to score a ...

  • Solutions to Hackathon Challenges

    One of the winners of the Back-to-School Hackathon was Alexander Ramirez. He helpfully posted about each challenge on...

  • HackerRank Hackathon Results

    On Saturday, HackerRank ran our biggest contest yet, with contestants from all over the world competing to solve six ...

  • HackerRank Hackathon Tomorrow

    What makes a great Hackathon? Interesting variety of challenges – There should be an interesting mix of challen...

  • Free $100 AWS Credit for Hackathon Participants!

    The Back-to-School Hackathon is happening this Saturday, and here’s another incentive to join: $100 AWS credits, cour...