Python – Find the distance between first and last even elements in a List

When it is required to find the distance between the first and last even elements of a list, list elements are accessed using indexing and the difference is found.

Example

Below is a demonstration of the same

my_list = [2, 3, 6, 4, 6, 2, 9, 1, 14, 11] print("The list is :") print(my_list) my_indices_list = [idx for idx in range( len(my_list)) if my_list[idx] % 2 == 0] my_result = my_indices_list[-1] - my_indices_list[0] print("The result is :") print(my_result)

Output

The list is : [2, 3, 6, 4, 6, 2, 9, 1, 14, 11] The result is : 8

Explanation

• A list is defined and is displayed on the console.

• The list is iterated over, and the elements are checked to see if divisible by 2.

• If so, they are assigned to a variable.

• The difference between last and first element is obtained by indexing them.

• This difference is assigned to a variable.

• This variable is displayed on the console.