Best way of learning is application.

How do you learn a topic (theory part), like new DS or new Algo? How much time to do you give in theory part before moving to problems?? How much minimum questions you do of that topic ,before u get strongly confident in that DS or Algo??

Answers to these will be helpful. Thank You.

Hello Everyone! Which is better ? Practicing questions by Rating wise or topic wise ? Thank You!!

Hello Everyone, I would like to know the process from which you come up with various edges cases(test cases) during live contest to check the correctness of your code?? Also plz suggest some practices, if any! Thanks a Lot!!!!

Hello Everyone, I am having trouble with Greedy Technique. Though I can identify if the question is greedy but I am unable to start the solution Please help if you can with your experience it would be much help for coders like me. Thank You!!