Given a list, the task is to find Kth’s Smallest and largest element in the given Unsorted list in Python.

**Examples:**

**Example1:**

**Input:**

Given List =[19, 24, 25, 36, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25] Given k=6

**Output:**

The given list before sorting is [19, 24, 25, 36, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25] The given list after sorting is [1, 4, 9, 10, 16, 19, 23, 24, 25, 25, 25, 36, 49, 49, 81, 144, 225, 600, 900] The 6 th smallest element in the given list is [ 19 ] The 6 th largest element in the given list is [ 49 ]

**Example2:**

**Input:**

Given list = [8, 45, 29, 19, 75, 68, 42, 13, 7, 9, 6, 4, 5, 96, 97, 91, 49, 72] Given K =3

**Output:**

The given list before sorting is [8, 45, 29, 19, 75, 68, 42, 13, 7, 9, 6, 4, 5, 96, 97, 91, 49, 72] The given list after sorting is [4, 5, 6, 7, 8, 9, 13, 19, 29, 42, 45, 49, 68, 72, 75, 91, 96, 97] The 3 th smallest element in the given list is [ 6 ] The 3 th largest element in the given list is [ 91 ]

## Program to Find K’th Smallest/Largest Element in Unsorted Array or List in Python

Below are the ways to find Kth’s Smallest and largest element in the given Unsorted list in Python.

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### Method #1: Using Sorting (Static Input)

**Approach:**

- Give the list as static input and store it in a variable.
- Give the value of K as static input and store it in a variable.
- Sort the given list using the sort() function which sorts the given list in ascending order.
- We can get the Kth smallest element in the given list by printing the k-1 index element in this sorted list.
- We can get the Kth largest element in the given list by printing the -k index element in this sorted list( ‘-‘ refers to negative indexing).
- The Exit of the program.

**Below is the implementation:**

# Give the list as static input and store it in a variable. gvnlst = [19, 24, 25, 36, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25] print('The given list before sorting is', gvnlst) # Give the value of K as static input and store it in a variable. kth = 6 # Sort the given list using the sort() function # which sorts the given list in ascending order. gvnlst.sort() print('The given list after sorting is', gvnlst) # We can get the Kth smallest element in the given list # by printing the k-1 index element in this sorted list. print('The', kth, 'th smallest element in the given list is [', gvnlst[kth-1], ']') # We can get the Kth largest element in the given list # by printing the -k index element in this sorted list # ( '-' refers to negative indexing). print('The', kth, 'th largest element in the given list is [', gvnlst[-kth], ']')

**Output:**

The given list before sorting is [19, 24, 25, 36, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25] The given list after sorting is [1, 4, 9, 10, 16, 19, 23, 24, 25, 25, 25, 36, 49, 49, 81, 144, 225, 600, 900] The 6 th smallest element in the given list is [ 19 ] The 6 th largest element in the given list is [ 49 ]

### Method #2: Using Sorting (User Input)

**Approach:**

- Give the list as user input using list(),map(),input(),and split() functions.
- Store it in a variable.
- Give the value of K as user input and store it in a variable.
- Sort the given list using the sort() function which sorts the given list in ascending order.
- We can get the Kth smallest element in the given list by printing the k-1 index element in this sorted list.
- We can get the Kth largest element in the given list by printing the -k index element in this sorted list( ‘-‘ refers to negative indexing).
- The Exit of the program.

**Below is the implementation:**

# Give the list as user input using list(),map(),input(),and split() functions. # Store it in a variable. gvnlst = list(map(int, input( 'Enter some random List Elements separated by spaces = ').split())) # Give the value of K as user input and store it in a variable. kth = int(input('Enter some random Kth Number = ')) print('The given list before sorting is', gvnlst) # Sort the given list using the sort() function # which sorts the given list in ascending order. gvnlst.sort() print('The given list after sorting is', gvnlst) # We can get the Kth smallest element in the given list # by printing the k-1 index element in this sorted list. print('The', kth, 'th smallest element in the given list is [', gvnlst[kth-1], ']') # We can get the Kth largest element in the given list # by printing the -k index element in this sorted list # ( '-' refers to negative indexing). print('The', kth, 'th largest element in the given list is [', gvnlst[-kth], ']')

**Output:**

Enter some random List Elements separated by spaces = 8 45 29 19 75 68 42 13 7 9 6 4 5 96 97 91 49 72 Enter some random Kth Number = 3 The given list before sorting is [8, 45, 29, 19, 75, 68, 42, 13, 7, 9, 6, 4, 5, 96, 97, 91, 49, 72] The given list after sorting is [4, 5, 6, 7, 8, 9, 13, 19, 29, 42, 45, 49, 68, 72, 75, 91, 96, 97] The 3 th smallest element in the given list is [ 6 ] The 3 th largest element in the given list is [ 91 ]

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