Question
import copy # Implementation of a heap in python # We use a list for the data in place of an array, as the list
import copy
# Implementation of a heap in python
# We use a list for the data in place of an array, as the list allow
# index-based access.
class Heap:
def __init__(self):
self.data = [] # Empty heap
def extractMax(self):
max= self.data[0]
self.data[0] = self.data[len(self.data)-1]
self.data.pop() # removes last element
self.heapify(0)
return max
# Don't need to pass in heap size, can compute from data[]
# The objects in the heap must have defined
def heapify(self, i):
largest = i # Initialize largest as root
left = 2*i + 1 # Formula for 0-based array
right = 2*i + 2
heapSize = len(self.data)
if (left self.data[largest]):
largest = left
if (right self.data[largest]):
largest = right
if (largest != i):
temp = self.data[i]
self.data[i] = self.data[largest]
self.data[largest] = temp
self.heapify(largest)
def buildHeap(self, sourceList):
self.data = copy.deepcopy(sourceList) # Makes deep copy of list
for i in range(len(self.data) - 1, -1, -1): # i-1 down to 0
self.heapify(i)
# Insert will be left for you to implement in an upcoming assignment
def insert(self, element):
return
2. (12 points) Heap Implementation Start with the python heap implementation given in the colab notebook. 1. Complete the insert method so that an element is properly inserted into the heap. 2. Create a Person class that has two instance variables, one for name and the other for age. You can add additional variables and methods if you like but it should have those two at a minimum with an appropriate _init_method. You should define == for the Person class based on lexicographically comparing the name as well as an implementation for Str. 3. In your main program create 6 Person objects with the name age of your choice and insert them into a heap. Make a loop that extracts the maximum until the heap is empty, outputting each name. This should result in outputting the people in reverse alphabetical order by nameStep by Step Solution
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