<Copy-paste from shashank21j>

Hi!

Ad Infinitum is back with 14th Edition, a contest restricted to mathematics domain, held on HackerRank.

Register at https://www.hackerrank.com/infinitum14
The contest commences on 15th January 15:30 UTC. You are allowed to enter the contest anytime, for tie breaking the timer will start when you view the first challenge, which allows you to start late at your convenience, but once started try to finish as fast as possible to be on top of the leaderboard :)

It's a 2 days contest with 8 problems (3 Easy(Tutorial), 3 Medium, 2 Hard)
Scoring Distribution: 20 25 30 40 60 80 100 140

Top 10 on leaderboard gets Cool HackerRank T shirt,

Detailed editorials will be available by the end of contest :) I suggest you to try all challenges and at the end of contest understand the solutions.

GL&HF

</Copy-paste from shashank21j>

Hope you find problems interesting, especially the last one :)