Crack the Code Competitive Programming Contest 2025

The contest has ended. Enter to solve the archived challenges.

About

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.
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Refrain from sharing solutions with other teams.
Use of generative AI, such as copilot or ChatGPT are prohibited.
This is an individual contest. Therefore, register as an individual and not with your hackathon team.
Although input is formally declared, a solution function is given with the input passed as parameters.
If you have any questions, ask in thediscord server.

There are 4 problems, each with test cases.
The more test cases you get, the more points you get.
You can submit a solution for a problem multiple times! The score reflected will be the highest score you get on a problem.
tiebreaker: the time elapsed for the first correct submission for all problems
Note: your time starts when you first click on a problem statement, not the time elapsed since the contest started. This means you can start the contest later and still potentially get 1st place.