About

Sign up for 101 Hack 45, an algorithm contest that’s all about speed, accuracy and efficiency.

You’ll have 120 minutes to solve 5 challenges. Top 10 coders win HackerRank T-shirts. Get your code on and sign up now!

Prizes

Top 10 coders win HackerRank T-shirts.

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.

Code directly from our platform, which supports over 30 languages. Learn more here.
All submissions are run through a plagiarism detector. Any case of code plagiarism will disqualify both users from the contest.

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.
If a participant submits more than one solution per challenge, then the participant’s score will reflect the highest score achieved.
Participants are ranked by score. If two or more participants achieve the same score, then the tie is broken by the total time taken for submitting the last correct code submission.