max heap as array

import java.util.PriorityQueue; public class MaxHeapWithPriorityQueue { public static void main(String args[]) { // create priority queue PriorityQueue<Integer> prq = new PriorityQueue<>(Comparator.reverseOrder()); // insert values in the queue prq.add(6); prq.add(9); prq.add(5); prq.add(64); prq.add(6); //print values while (!prq.isEmpty()) { System.out.print(prq.poll()+" "); } } }

max heap python

# Python3 program to demonstrate working of heapq
  
from heapq import heappop, heappush, heapify
  
# Creating empty heap
heap = []
heapify(heap)
  
# Adding items to the heap using heappush
# function by multiplying them with -1
heappush(heap, -1 * 10)
heappush(heap, -1 * 30)
heappush(heap, -1 * 20)
heappush(heap, -1 * 400)
  
# printing the value of maximum element
print("Head value of heap : "+str(-1 * heap[0]))
  
# printing the elements of the heap
print("The heap elements : ")
for i in heap:
    print(-1 * i, end = ' ')
print("\n")
  
element = heappop(heap)
  
# printing the elements of the heap
print("The heap elements : ")
for i in heap:
    print(-1 * i, end = ' ')

Posted by: Guest on February-15-2022

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