Hello everyone!
I would like to invite you to participate in HackerEarth HourStorm #7. It’s the seventh version of the short contest, that runs for 1 hour! The problem set consists of 3 traditional algorithmic tasks of various difficulties. The contest starts on the 11th of January, 9.30- PM IST

For traditional algorithmic tasks, you will receive points for every test case your solution passes — so you can get some points with partial solutions as well. Check contest page for more details about in-contest schedule and rules.

Great thanks to raghavkapoor1997 for preparing the tasks and isaf27 for testing them. As usual, there will be some prizes for the top three competitors:

$75 Amazon gift card
$50 Amazon gift card
$25 Amazon gift card

In addition, top 5 on the scoreboard with rating less than 1600 will win HackerEarth t-shirts. Good luck to everyone, and let's discuss the problems after the contest!

Hello everyone!
I would like to invite you to participate in HackerEarth HourStorm #5. It’s the fifth version of the short contest, that runs for 1 hour! The problem set consists of 3 traditional algorithmic tasks of various difficulties. The contest starts on the 17th of November, 9.30- PM IST

For traditional algorithmic tasks, you will receive points for every test case your solution passes — so you can get some points with partial solutions as well. Check contest page for more details about in-contest schedule and rules.

Great thanks to chemthan for preparing beautiful tasks and vntshh for testing them. As usual, there will be some prizes for the top three competitors:

$75 Amazon gift card
$50 Amazon gift card
$25 Amazon gift card

In addition, top 5 on the scoreboard with rating less than 1600 will win HackerEarth t-shirts. Good luck to everyone, and let's discuss the problems after the contest!

Update:The contest is finished. Winners

1. Deemo
2. I_love_Tanya_Romanova
3. uwi

Hello everyone!

I would like to invite you to participate in HackerEarth October Circuits '18. It's a long contest that has started on October, 26, 21:00 IST (check your timezone). The contest will run for 9 days.

The participants will be challenged with 7 traditional algorithmic tasks and 1 approximate problem of varying difficulty levels for a duration of 9 days. For traditional algorithmic tasks, you will receive points for every test case your solution passes — so you can get some points with partial solutions as well. For the approximation task, your score depends on the best solution in the contest so far. Here is the detailed timeline of the challenge,

Day-0 : Problem-1, Problem-2, Approximate
Day-2 : Problem-3, Problem-4
Day-4 : Problem-5, Problem-6
Day-6 : Problem-7
Day-9 : Challenge Ends

I am one of the testers of the problems. I'd like to thanks I_Love_Tina, blake_786, lucifer2709, kingofbugs, trytolearn and aashrayagarwal for preparing the tasks and chemthan, r3gz3n, Xsquare, trytolearn and aashrayagarwal for testing them.

The contest will be RATED.

Happy Coding :)

You are given a set S of n strings. Sum of length of all the strings <= 2 * 10^5. Now you have to find the size of the smallest generating set for these n strings. The smallest generating set is the minimal subset of the set S such that by concatenating some of its strings multiple times you can generate all the strings in the set S.
For example let the set S contains strings "ab" , "abb" , "b" and "a" then the answer is 2 as you can have a set {"a" , "b"} which is the subset of set S and using these strings you can generate all the 4 strings. Also you can concatenate any string >= 0 times.
Link to the problem statement.

Programming Society , IIIT Jabalpur presents you mirror round of their Onsite Programming Contest Codigo Competencia which is the mega coding event in Inter IIIT Technical Fest .

Event Date : 25 March 2017
Event Time : 3:00PM IST to 6:00PM IST
Mirror Link : https://www.hackerearth.com/challenge/college/codigo-competencia/

For the winner teams of mirror contest we will give T-Shirts as the goodies.

The contest will contain 6 problems of varying difficulty. You can participate by just registering in the above link and for that you should have a hackerearth handle.
I hope you will enjoy the contest.

Programming Club of IIITDM Jabalpur is hosting a team programming contest as practice for ICPC. Contest is scheduled on 9-November-2016 at 4:00 PM UTC.Link to Contest : https://www.hackerearth.com/codering-ii/

Hope you enjoy Coding ! See you all at the arena !

Programming Club of IIITDM Jabalpur is hosting a team programming contest as warmup for ICPC 2017. It contains 6 problems of varying difficulty. Contest is scheduled on 25-September-2016 at 9:30 PM (+5:30).

Link to Contest : https://www.hackerearth.com/codering/

Hope you enjoy Coding ! See you all at the arena !