Common elementGiven two lists a, b. Check if two lists have at least one element common in them.Constraints:NAExample:Input :1 2 3 4 55 6 7 8 9Output :True

Here is a step-by-step solution in Python:

Step 1: Define the two lists.

a = [1, 2, 3, 4, 5]
b = [5, 6, 7, 8, 9]

Step 2: Use the built-in Python function set() to convert the lists into sets. Sets in Python are unordered collections of unique elements. Converting the lists to sets will remove any duplicate elements.

set_a = set(a)
set_b = set(b)

Step 3: Use the intersection() method, which returns a set that contains the similarity between two or more sets. If the length of the intersection is greater than 0, it means that there is at least one common element between the two lists.

common_elements = set_a.intersection(set_b)

Step 4: Check if the length of common_elements is greater than 0. If it is, return True. Otherwise, return False.

if len(common_elements) > 0:
    print(True)
else:
    print(False)

When you run this code with the given lists, it will print True because the number 5 is a common element in both lists.