What is basically the logic behind this code implementation I mean why are we doing it or how and when to think of it?
About the logic of the code
pls can my doubt be cleared?It has been a week
hello @Senjuti256
we r segregating 0 , 1 ,2 using two pointer.
we r putting all 0 before 1 st pointer pointer.
and putting all 2’s after 2nd pointer.
in between those two pointer we r putting 1.
do a lot of problems on two pointers apporach , u will get the idea when to use it and when not.
where to get 2 pointer approach problems
check leet code… . . .