Python program to find Union of two or more Lists?

PythonProgrammingServer Side Programming

Union operation means, we have to take all the elements from List1 and List 2 and all the elements store in another third list.

List1::[1,2,3]
List2::[4,5,6]
List3::[1,2,3,4,5,6]

Algorithm

Step 1: Input two lists.
Step 2: for union operation we just use + operator.

Example code

# UNION OPERATION
A=list()
B=list()
n=int(input("Enter the size of the List ::"))
print("Enter the Element of first list::")
for i in range(int(n)):
   k=int(input(""))
   A.append(k)
print("Enter the Element of second list::")
for i in range(int(n)):
   k=int(input(""))
   B.append(k)
   C = A + B
print("THE FINAL LIST IS ::>",C)

Output

Enter the size of the List ::4
Enter the Element of first list::
23
11
22
33
Enter the Element of second list::
33
22
67
45
THE FINAL LIST IS ::> [23, 11, 22, 33, 33, 22, 67, 45]
raja
Published on 25-Sep-2018 17:20:20
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