heaps in priority queue code example

Example 1: min heap priority queue c++

#include
std::priority_queue , std::greater > minHeap;

Example 2: create a min heap in java using priority queue

int arr[]={1,2,1,3,3,5,7};
        PriorityQueue a=new PriorityQueue<>();
        for(int i:arr){
            a.add(i);
        }
        while(!a.isEmpty())
            System.out.println(a.poll());

Example 3: Difference between Priority Queue and Heap

This website provides a really clear explanation. http://pages.cs.wisc.edu/~vernon/cs367/notes/11.PRIORITY-Q.html

In short, a priority queue can be implemented using many of the data structures that we've already studied (an array, a linked list, or a binary search tree). However, those data structures do not provide the most efficient operations. To make all of the operations very efficient, we'll use a new data structure called a heap.