Recent questions tagged priority-queue

Suppose Huffman coding is implemented as follows.Initially, the $n$ symbols are stored in a min priority queue according to their frequencies.The algorithm repeatedly per...

Which of the following statements are true?$\text{S1.}$ Stack operations $\texttt{push}$, $\texttt{pop}$, and $\texttt{isEmpty}$ can be worst-case $O(1)$ for a linked-lis...

Consider the following min-heap where each node is written as $\texttt{(value, priority)}$:Now perform these operations in order:$\texttt{updatePriority(A, 8)}$ $\texttt{...

In a priority queue, insertion and deletion can be done atFrontBackMiddleAny position 

Let $A$ be a priority queue for maintaining a set of elements. Suppose $A$ is implemented using a max-heap data structure. The operation $\text{EXTRACT-MAX} (A)$ extracts...

Q.which of the following data structure cannot be used for efficient implementation of Priority Queue?a. Binary heapb. Height balanced binary tree.c. Sorted array

What is the worst case running time of Insert and Extract-min, in an implementation of a priority queue using an unsorted array? Assume that all the insertions can be acc...

A priority queue is implemented as a Max-Heap. Initially, it has $5$ elements. The level-order traversal of the heap is: $10,8,5,3,2$. Two new elements $1$ and $7$ are in...

On other sources, it is given that we need to assign high priorities to newly inserted element in case of stack otherwise low priority to newly inserted element in case o...

A priority queue is implemented as a $Max$-$heap.$Initially, it has $5$ elements. The level order traversal of the heap is $10,8,5,3,2.$ Two new elements $1$ and $7$ are ...

Suppose Stack operations are implemented using Queue Operation. Push(x) and Pop() are stack operations whereas enqueue(x) and dequeue are Queue operations.Consider the co...

How to implement Priority queue using stack?What will be time complexity for Enqueue and Dequeue operations?Edit:- Updated the question clearly

A priority queue is implemented as a max-heap. Initially, it has five elements. The levelorder traversal of the heap is as follows :20, 18, 15, 13, 12Two new elements ‘10...

What is the most appropriate data structure to implement a priority queue ?HeapCircular arrayLinked listBinary tree

How many minimum queues are required to implement a priority queue?