Hi!
Ad Infinitum is back with [Infinitum May’14][123], a monthly contest restricted to mathematics domain, held on HackerRank.
Register at https://www.hackerrank.com/infinitum-may14
Contest starts at [Saturday, 24 May 0530 GMT][124]
It’s a 2 day contest with 8 problems (3 Easy, 3 Medium, 2 Hard)
Scoring Distribution: 20 20 20 40 60 80 100 120
Problem statements in English, Russian and Chinese.
You can view the last month’s challenges here:
[March][151]
[April][152]
Top 10 on leaderboard will get Cool HackerRank T shirt
Problem Setters
[Anton Lunyov][131]
[Praveen Dhinwa][132]
[Lalit Kundu][133]
[Amit Pandey][134]
Problem Tester
[Goutham R][135]
Looking forward to a great participation! 
[124]: http://www.timeanddate.com/countdown/generic?p0=438&iso=20140524T11&msg=Infinitum%20May'14
[123]: https://www.hackerrank.com/infinitum-may14
[131]: http://codechef.com/users/anton_lunyov
[132]: http://codechef.com/users/dpraveen
[133]: http://codechef.com/users/darkshadows
[134]: http://codechef.com/users/amitpandeykgp
[135]: http://codechef.com/users/xorfire
[151]: https://www.hackerrank.com/contests/infinitum-mar14/challenges
[152]: https://www.hackerrank.com/contests/infinitum-apr14/challenges