Hi, though the problem is under LINKED LISTS topic, I am unable to find a proper implementation using Linked LIsts. Is it a LINKED LIST problem and if it is, how can we approach this?? 
Thnx in advance.
RAT CHASES ITS CHEESE a linked list problem?
Hello @saurabhpandey59373,
It is a problem of recursion and backtracking.
There is no need for a linked list.
You’re Welcome.