Hi, I am preparing for ZCO and I think that I am not that good in Dynamic Programming. So, I would request you to refer me some nice DP problems of ZCO level so that I can get a good grip on it. I have a knowledge of fundamentals of Dynamic Programming and can solve easy problems.
P. S. I have tried all the problems in the practice contest so please don’t refer that.
If its saying that your email is already registered you can use the Forgot your password? option. They will help you in setting up a new password which you use to login. If the problem still persists register using another email or drop them a mail at this address firstname.lastname@example.org.
I heard that https://a2oj.com/ has a collection of nice problem. You can sort problems from various sites like codechef etc. on basis of their tag/topics. My friends use it for practicing mostly, but yes, it means you must be comfortable with practicing on multiple sites as well.