Question

Write a program to read a list of elements. Modify this list so that it does not contain any duplicate elements, i.e., all elements occurring multiple times in the list should appear only once.

Answer 1

Program:

#function to remove the duplicate elements

def removeDup(list1):

#Checking the length of list for 'for' loop

length = len(list1)

#Defining a new list for adding unique elements

newList = []

for a in range(length):

#Checking if an element is not in the new List

#This will reject duplicate values

if list1[a] not in newList:

newList.append(list1[a])

return newList

#Defining empty list

list1 = []

#Asking for number of elements to be added in the list

inp = int(input("How many elements do you want to add in the list? "))

#Taking the input from user

for i in range(inp):

a = int(input("Enter the elements: "))

list1.append(a)

#Printing the list

print("The list entered is:",list1)

#Printing the list without any duplicate elements

print("The list without any duplicate element is:",removeDup(list1))

OUTPUT:

How many elements do you want to add in the list? 6

Enter the elements: 1

Enter the elements: 1

Enter the elements: 2

Enter the elements: 2

Enter the elements: 3

Enter the elements: 4

The list entered is: [1, 1, 2, 2, 3, 4]

The list without any duplicate element is: [1, 2, 3, 4]