Advent of Code

One of the RSEs here at Imperial recently let me know about If you haven’t heard of this, it’s a website which publishes daily coding challenges from the first of December through to Christmas day, forming an advent calender of problems. People compete to enter the correct solution for their input in the shortest amount of time. You can use whatever programming language you like, and you generally need to paste in a number or string in the answer box, in a format very similar to https://projecteuler.