CS50 and HackerRank present the first-ever...

CS50x CODING CONTEST 2016
an epic weekend of code

Open to CS50x students around the world (and friends). Solve as many problems (in C!) as you can!

HOW TO PARTICIPATE

1. Sign up for a (free) HackerRank account at https://www.hackerrank.com/signup.
2. Register yourself with CS50 for CS50x Coding Contest 2016 at http://cs50.edx.org/register.
3. Form a team with 0, 1, 2, or 3 classmates (or friends). At least one team member should be taking or should have taken CS50x. Either you or one of your teammates should then create your team at https://www.hackerrank.com/settings/teams, selecting "CS50x Coding Contest 2016" where prompted, and add everyone else to the team. You're welcome to participate in CS50x Coding Contest 2016 alone, but you'll still need to create a team (with just you on it).
4. Visit https://www.hackerrank.com/cs50x-2016 to sign up for the contest itself, which officially begins on Friday, 29 July 2016, in all time zones! You're welcome to spend as much time on the contest as you'd like, so long as you finish by Sunday, 31 July 2016, in your own time zone. All challenges must be solved in C!

If you'd like to familiarize yourself with HackerRank's interface before CS50x Coding Contest 2016 begins, sign up for some practice challenges at https://www.hackerrank.com/cs50x-2016-practice! No need to create a team to practice.

LOOKING FOR TEAMMATES?

Visit http://cs50.edx.org/teammates! Then keep an eye on https://docs.google.com/spreadsheets/d/14lYm4_sztShZ_GtBugrcB8FMhpsDzSC8WZUc4YK8Mb4/pubhtml?gid=769158438&single=true.

WANT TO HOST?

If you'd like to host CS50x Coding Contest 2016 in your area, whereby you'd coordinate a time and place for your team and others to gather, let us know at http://cs50.edx.org/host!

WHO'S HOSTING SO FAR?

Your team is welcome to work together online or in person by yourselves, but if you'd like to get together with classmates, here's who has volunteered to host so far, https://docs.google.com/spreadsheets/d/18sYLhhMSGNtHazR7OD7gB6ksPPK1I8eCh4JUPqXJB-k/pubhtml?gid=2045933910&single=true so far. If there's a host in your area, send them an email if you'd like to meet up!

LOOKING FOR POSTMORTEMS?

If you've completed the challenges already and are looking to compare your solution to an official one, or if you're perhaps stuck and would like some guidance, feel free to watch a postmortem video for any of this contest's challenges using the following playlist:

https://www.youtube.com/playlist?list=PLhQjrBD2T382Jz15wqDV6IFcrJa4cp-hF