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Start date: Oct. 9, 2021, 5 p.m. UTC

Knock knock, trick or treat?

The first 3 developers to solve the challenge perfectly in the least amount of time will be added to the Codility Hall of Fame, winning $25 Amazon gift cards. You can use them to treat yourself to some goodies for Halloween.

Once the Spooktober Challenge has ended (on October 23rd), you will still be able to take the challenge, and gain certificates, but will no longer be in the running for prizes.

Good luck solving this challenge!

About Codility

We help engineering leaders hire great software developers into their teams by evaluating technical skills in an unbiased way. We’re committed to levelling the playing field by building a platform that provides equal opportunity to all developers worldwide. Interested in joining us? We’re currently hiring engineers to work remotely from all over Europe.

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1377 started 62 silver awards 172 golden awards

Hall of fame:

乐平 汪
Time: 3 minutes
Andrei Navumenka
Time: 6 minutes
Md Abedin
Time: 6 minutes