What Is Sorted Linked List in Data Structure?

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Scott Campbell

A sorted linked list is a type of data structure that organizes its elements in a specific order. Unlike an array, which stores elements in contiguous memory locations, a linked list consists of nodes that are connected by pointers. Each node contains both the data and a pointer to the next node in the list.

Advantages of Sorted Linked List

Sorted linked lists offer several advantages over other data structures:

  • Efficient insertion and deletion: Since the elements are already sorted, inserting or deleting an element in a sorted linked list can be done in O(1) time complexity on average. In comparison, arrays require shifting elements to maintain sorting, resulting in an O(n) time complexity.
  • Faster searching: Due to the sorted nature of the list, searching for an element can be accomplished using binary search. Binary search has a time complexity of O(log n), making it more efficient than linear search used with arrays (O(n)).
  • Dynamic size: Linked lists can grow or shrink dynamically as needed without requiring pre-allocation of memory like arrays.

Implementation of Sorted Linked List

To implement a sorted linked list, we need to ensure that elements are inserted in their appropriate position while maintaining the sorting order. Here’s a simple example:

<pre>
class Node {
    constructor(data) {
        this.data = data;
        this.next = null;
    }
}

class SortedLinkedList {
    constructor() {
        this.head = null;
    }

    insert(data) {
        const newNode = new Node(data);

        if (this.head === null || data < this.head.data) {
            newNode.next = this.head;
            this.head = newNode;
        } else {
            let current = this.head;

            while (current.next !== null && data >= current.next.data) {
                current = current.next;
            }

            newNode.next = current.next;
            current.next = newNode;
        }
    }

    // Other methods like delete, search, etc.
}
</pre>

Conclusion

A sorted linked list is a useful data structure that maintains elements in a specific order. It offers efficient insertion, deletion, and searching operations compared to arrays. By using appropriate HTML styling elements like bold, underline,

    unordered lists

, and

  • list items
  • , we can make our content visually engaging and easier to understand.

    Now that you have a good understanding of sorted linked lists, you can explore further and implement various operations on your own. Happy coding!

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