Hello Codeforces community !

I am glad to announce HackerRank 101 Hack 28th editon. The contest will be held on 20th August 2015 at 16:30 UTC. You can sign up for the contest here. Top 10 winners on the leaderboard will receive a HackerRank T-Shirt.

Problems have been set by Nikola Mandic(nikola12345) and Aleksa Plavsic (allllekssssa). The contest will consist of 5 problems with variable scoring distribution. Contest are rated for all HackerRank users. This is our second competition, after Codeforce div 2 round. We think everyone will find something interesting and solvable. Please read all the tasks, some problems that hard for us can be easy for you.

The main charcters of the round are Mika and Zloba. We would like to show how much we appreciate them :)

We want to thank whole HackerRank team, especially to wanbo for testing contest and great advices about tasks and Shafaet for helping and excellent communication. We believe we will cooperate in future with these excellent people.

Also I want to thank my friend Errichto. He is always here to listen my ideas and suggest several options to improve it.

We hope you will enjoy in the problems. Please feel free to ask any questions.

Good luck, we are waiting your comments and impressions about contest !

UPD: Score distribution : 30 — 50 — 80 — 100 — 120

The competition starts in an hour.