JAVA Help: Mergesort Implement a natural merge sort for linked lists. (This is the method of choice for sorting linked lists because it uses no extra space and is guaranteed to be linearithmic.) During each iteration, natural merge sort works by scanning the list from the left to right identifying naturally sorted sub-lists and merging the sub-lists, and continue scanning further identifying and merging the sub-lists until the end of the list. Repeats the process until the entire list is sorted. Example: Unsorted list M -> E -> R -> G -> E -> S -> O -> R -> T -> E -> X -> A -> M -> P -> L -> E After first iteration: E - > M -> R -> E -> G -> S -> E -> O -> R -> T -> X -> A -> L -> M -> P -> E After second iteration: E -> E -> G -> M -> R -> S -> A -> E -> L -> M -> 0 -> P -> R -> T -> X -> E After third iteration: A -> E -> E -> E -> G -> L -> M -> M -> O -> P -> R -> R -> S – T -> X -> E After fourth iteration: A -> E -> E -> E -> E -> G -> L -> M -> M -> O -> P -> R -> R -> S – T -> X
Types of Linked List
A sequence of data elements connected through links is called a linked list (LL). The elements of a linked list are nodes containing data and a reference to the next node in the list. In a linked list, the elements are stored in a non-contiguous manner and the linear order in maintained by means of a pointer associated with each node in the list which is used to point to the subsequent node in the list.
Linked List
When a set of items is organized sequentially, it is termed as list. Linked list is a list whose order is given by links from one item to the next. It contains a link to the structure containing the next item so we can say that it is a completely different way to represent a list. In linked list, each structure of the list is known as node and it consists of two fields (one for containing the item and other one is for containing the next item address).
JAVA Help:
Mergesort Implement a natural merge sort for linked lists. (This is the method of choice for sorting linked lists because it uses no extra space and is guaranteed to be linearithmic.) During each iteration, natural merge sort works by scanning the list from the left to right identifying naturally sorted sub-lists and merging the sub-lists, and continue scanning further identifying and merging the sub-lists until the end of the list. Repeats the process until the entire list is sorted. Example: Unsorted list M -> E -> R -> G -> E -> S -> O -> R -> T -> E -> X -> A -> M -> P -> L -> E After first iteration: E - > M -> R -> E -> G -> S -> E -> O -> R -> T -> X -> A -> L -> M -> P -> E After second iteration: E -> E -> G -> M -> R -> S -> A -> E -> L -> M -> 0 -> P -> R -> T -> X -> E After third iteration: A -> E -> E -> E -> G -> L -> M -> M -> O -> P -> R -> R -> S – T -> X -> E After fourth iteration: A -> E -> E -> E -> E -> G -> L -> M -> M -> O -> P -> R -> R -> S – T -> X
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