How To Merge Two Sorted Lists

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We can use LinkedList to merge both sorted lists, though there are considerations to doing it single or double-linked that may complicate the operation.
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The list should be made by splicing together the nodes of the first two lists. It could be singly linked or doubly linked. The number of nodes in both lists is in the range `[0, 50]`-100 <= 100` The first Linked node is usually called the head whereas the last one is called the tail. The solution has a solution and we’ll discuss it in terms of big O notation. We’re looking for a node with minimal value stored in it. We move the pointer to the next for LinkedList which has a head. We also need a current node for storing the link of the current node.