Merge two sorted linked lists Hackerrank Solution.

Merge two sorted linked lists Hackerrank Solution.

Delete duplicate-value nodes from a sorted linked list Java (HackerRank)

Delete duplicate-value nodes from a sorted linked list Java. You're given the pointer to the head node of a sorted linked list, where the data in the nodes is in ascending order. Delete as few nodes as possible so that the list does not contain any value more than once. The given head pointer may be null indicating that the list is empty.

Insert a node at the head of a linked list in Java HackerRank.

Insert a node at the head of a linked list in Java