About

Code your way to infinity and beyond by competing in Ad Infinitum 18, a mathematics programming contest.

You’ll have 48 hours to solve 8 challenges.

Prizes

Top 10 coders win HackerRank T-shirts.

Residents of the following countries and territories are not eligible to win prizes due to legal restrictions. Learn more here: Antarctica, Afghanistan, Belarus, Bosnia and Herzegovina, Bouvet Island, Burundi, Cameroon, Central African Republic, Congo, Christmas Island, Crimea, Cuba, North Korea, Equatorial Guinea, Iran, Iraq, Laos, Lebanon, Libya, Moldova, Nigeria, Pakistan, Papua New Guinea, Russia, Serbia and Montenegro, Sevastopol, Somalia, Sudan, Syria, Ukraine, Venezuela, Yemen, Zimbabwe.
Residents of the following countries and territories are not eligible to win T-Shirts due to heavy international tax charges required for both the recipient and HackerRank: Bangladesh, Dalaras, Kazakhstan, Philippines, Sweden and Ukraine.

The creator of this contest is solely responsible for setting and communicating the eligibility requirements associated with prizes awarded to participants, as well as for procurement and distribution of all prizes. The contest creator holds HackerRank harmless from and against any and all claims, losses, damages, costs, awards, settlements, orders, or fines.
Code directly from our platform, which supports over 30 languages. Learn more here.

Each challenge has a pre-determined score.
A participant’s score depends on the number of test cases a participant’s code submission successfully passes.
If a participant submits more than one solution per challenge, then the participant’s score will reflect the highest score achieved. In a game challenge, the participant's score will reflect the last code submission.
Participants are ranked by score. If two or more participants achieve the same score, then the tie is broken by the total time taken to submit the last solution resulting in a higher score