https://www.codechef.com/AUG16 Every month Codechef organises a Long Challenge of 10 questions. Many users of Codeforces do try the Long Challenges. As the discussion forums of Codechef is inactive than that of Codeforces, it would be nice if users discussed their solutions for the questions. Especially from task 5 as they usually have many different solution and it would be helpful for others too .