Hello everyone!

I would like to invite you to participate in HackerEarth September Circuits '17. It's a long contest that has started on September 22, 2017, 21:00 IST. The contest will run for 10 days, until October 2, 2017, 21:00 IST.

The problemset consists of 7 traditional algorithmic tasks of various difficulties and 1 approximate problem. 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. Check contest page for more details about in-contest schedule and rules.

Problems are prepared by karan_thakkar, Apptica, r3gz3n, AlexandruValeanu, and me. KuchumovIlya is the tester of the problemset.

As usual, there will be some prizes for the top five competitors:

1. $100 Amazon gift card + HE t-shirt.
2. $75 Amazon gift card + HE t-shirt.
3. $50 Amazon gift card + HE t-shirt.
4. HE t-shirt.
5. HE t-shirt.

Good luck to everyone, and I hope to see you at the contest :)