I invite you to participate in monthly medium contest of HackerEarth — November Rain (this time). There will be 5 problems in total and you will have 2.5 hours to solve them. The problems are comparable to Div-2 difficulty, though you won't find any cake walk problem. All you need is a HackerEarth account to participate in the contest.
The problems have been prepared by me, and I thank the testers and editorialist for their contribution.