Solution: Insert into a Sorted Circular Linked List
Understand how to insert a new value into a sorted circular linked list without breaking its order or circular nature. Explore a pointer-based approach to identify the correct insertion point, handling all edge cases including empty lists and uniform values. This lesson helps you apply in-place manipulation techniques to maintain sorted order in circular linked lists.
We'll cover the following...
Statement
You’re given a reference to a node, head, in a circular linked list, where the values are sorted in non-decreasing order. The list is circular, so the last node points to the first node. However, the head can be any node in the list—it is not guaranteed to be the node with the smallest value.
Your task is to insert a new value, insertVal, into the list so that it remains sorted and circular after the insertion.
You can choose any of the multiple valid spots where the value can be inserted while maintaining the sort order.
If the list is empty (i.e., the given node is NULL), create a new circular list with a single node containing
insertVal, and return that node.Otherwise, return the
headnode after insertion.
Constraints:
The number of nodes in the list is in the range
. Node.val,insertVal...