Given Nodes with their priority, implement a priority queue using doubly linked list.
Prerequisite : Priority Queue
Operations on Priority Queue :
- push(): This function is used to insert a new data into the queue.
- pop(): This function removes the element with the lowest priority value form the queue.
- peek() / top(): This function is used to get the lowest priority element in the queue without removing it from the queue.
1. Create a doubly linked list having fields info(hold the information of the Node), priority(hold the priority of the Node), prev(point to previous Node), next(point to next Node).
2. Insert the element and priority in the Node.
3. Arrange the Nodes in the increasing order of the priority.
Below is the implementation of above steps :
Related Article :
Priority Queue using Singly Linked List
Time Complexities and Comparison with Binary Heap:
peek() push() pop() ----------------------------------------- Linked List | O(1) O(n) O(1) | Binary Heap | O(1) O(Log n) O(Log n)
- Priority Queue using Linked List
- Difference between Singly linked list and Doubly linked list
- XOR Linked List - A Memory Efficient Doubly Linked List | Set 1
- XOR Linked List – A Memory Efficient Doubly Linked List | Set 2
- Reverse a Doubly Linked List
- Reverse a Doubly Linked List | Set-2
- QuickSort on Doubly Linked List
- Doubly Linked List | Set 1 (Introduction and Insertion)
- Rotate Doubly linked list by N nodes
- Delete all occurrences of a given key in a doubly linked list
- Sort the biotonic doubly linked list
- Sort a k sorted doubly linked list
- Bubble Sort On Doubly Linked List
- Reverse a doubly circular linked list
- Find pairs with given sum in doubly linked list
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