## Applications of Priority Queue

A Priority Queue is different from a normal queue, because instead of being a “first-in-first-out”, values come out in order by priority. It is an… Read More »

## Java.util.PriorityQueue class in Java

It is a priority queue based on priority heap. Elements in this class are in natural order or depends on the Constructor we used at… Read More »

## Amazon Interview Experience | Set 337 (For SDE-1)

Amazon Banglore/Chennai Interview for SDE 1 role Round 1 – Pen Paper Test 1) Root to leaf path sum equal to a given number, number… Read More »

## Heap queue (or heapq) in Python

Heap data structure is mainly used to represent a priority queue. In Python, it is available using “heapq” module. The property of this data structure… Read More »

## UHG(United Health Group) Interview Experience | Set 4 (On-Campus)

Eligibility criteria : 70 % OR 7 CGPA and above. Round 1.1 30 aptitude questions in 45 minutes .paper was bit tricky and was at… Read More »

## PriorityQueue in Java

A PriorityQueue is used when the objects are supposed to be processed based on the priority. It is known that a queue follows First-In-First-Out algorithm,… Read More »

## Prim’s algorithm using priority_queue in STL

Given an undirected, connected and weighted graph, find Minimum Spanning Tree (MST) of the graph using Prim’s algorithm. Input : Adjacency List representation of above… Read More »

## Dijkstra’s Shortest Path Algorithm using priority_queue of STL

Given a graph and a source vertex in graph, find shortest paths from source to all vertices in the given graph. Input : Source =… Read More »

## Priority Queue in C++ Standard Template Library (STL)

Priority queues are a type of container adapters, specifically designed such that the first element of the queue is the greatest of all elements in… Read More »

## Why is Binary Heap Preferred over BST for Priority Queue?

A typical Priority Queue requires following operations to be efficient. Get Top Priority Element (Get minimum or maximum) Insert an element Remove top priority element… Read More »

## Priority Queue | Set 1 (Introduction)

Priority Queue is an extension of queue with following properties. Every item has a priority associated with it. An element with high priority is dequeued… Read More »

## Amazon Interview | Set 34

First of all, a very very big thanks to whole team of geeks for geeks. It is because of them only that I was able… Read More »