w3resource

Python: Common index elements from more than one list

Python List: Exercise - 100 with Solution

Write a Python program to extract common index elements from more than one given list.

Visual Presentation:

Python List: Common index elements from more than one list.

Sample Solution:

Python Code:

# Define a function 'extract_index_ele' that finds common elements at the same index in three lists
def extract_index_ele(l1, l2, l3):
    result = []
    # Use the 'zip' function to iterate through elements at the same index in the three lists
    for m, n, o in zip(l1, l2, l3):
        # If the elements at the current index in all three lists are equal, append it to 'result'
        if (m == n == o):
            result.append(m)
    return result

# Create three lists 'nums1', 'nums2', and 'nums3' containing numbers
nums1 = [1, 1, 3, 4, 5, 6, 7]
nums2 = [0, 1, 2, 3, 4, 5, 7]
nums3 = [0, 1, 2, 3, 4, 5, 7]

# Print a message indicating the original lists
print("Original lists:")
# Print the contents of 'nums1'
print(nums1)
# Print the contents of 'nums2'
print(nums2)
# Print the contents of 'nums3'
print(nums3)

# Print a message indicating the common elements at the same index in the lists will be determined
print("\nCommon index elements of the said lists:")

# Call the 'extract_index_ele' function with 'nums1', 'nums2', and 'nums3' and print the result
print(extract_index_ele(nums1, nums2, nums3)) 

Sample Output:

Original lists:
[1, 1, 3, 4, 5, 6, 7]
[0, 1, 2, 3, 4, 5, 7]
[0, 1, 2, 3, 4, 5, 7]

Common index elements of the said lists:
[1, 7]

Flowchart:

Flowchart: Common index elements from more than one list.

Python Code Editor:

Previous: Write a Python program to find the maximum and minimum values in a given heterogeneous list.
Next: Write a Python program to sort a given matrix in ascending order according to the sum of its rows.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.