a function to get the K'th largest value in python

findKthLargestNumber.py

# For an unsorted array/list of n integers find the k-th largest element, where k <= n-1.
# Example: For A = [5,9,27,3,28,18,45] and k=4 the output will be 18.

def findKthLargestNumber(arr, n=3):
    k= n-1 # 
    print(arr) # previous state 
    arr.sort(reverse=True)   # {reverse=True} will make the sort to work in descending order
    print(arr)  # after sort in descending order
    print(arr[k]) # fetch the kth value
findKthLargestNumber([5,9,27,3,28,18,45] ,4)