What is the motto behind taking best=-1

#1

In all DP problems you have taken best=-1 the comparing max of best and ans and returning I didn’t get this logic please help.

#2

@rssrivastavarohan
Hello Rohan,
In this problem we want to find longest increasing subsequence right?
so what can be possible answers it might 1or 2 or 3 or any other bigger number (minimum answer will be always greater than or equal to 1)
So Intially we put -1(can put 0 or any other negative number as well) in best becuase on taking best=max(best,answer) best value will change for sure(as answer will be atleast 1)

#3

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