I am bot able to understand what are the subsets of a charachter array. Please explain

#1

Please explain and give the code , I am not able to solve on my own

#2

hi @akshat1409 refer

#3

it is either using dynamicprogramming or recursion and it has not been taught. Please give some normal solution

#4

hi @akshat1409 check this out basically u need to check all substring (do a dryrun)