Linked List Implementation: Swift

A linked list is a data structure in Swift that consists of nodes linked together via pointers or references. Each node contains data and a reference to the next node. Unlike an array, a linked list does not require contiguous memory allocation. Insertions and deletions can be performed efficiently in a linked list by updating the pointers, but accessing elements requires traversing the list linearly. Linked lists are useful when frequent insertions or deletions are expected, and their time complexity for most operations is O(1) or O(n) depending on the operation.