This code defines a function that modifies a list by...

This code defines a function that modifies a list by incrementing each of its elements by 1. Here's a step-by-step breakdown:

1. Function Definition (increase):

   • Input: The function accepts a list x as its argument.
   • Inside the function, a for loop iterates through the indices of the list x using range(len(x)).
   • Each element in the list x is incremented by 1 (x[i] += 1).
   • The modified list x is returned as the output of the function.

2. Input List and Function Call:

   • A list my_list = [10, 20, 30] is defined.
   • The increase function is called with my_list as the argument (result_list = increase(my_list)).

   Important Note: Since lists in Python are mutable, the function works on the original list (my_list). Therefore, my_list itself is modified in-place.

3. Printing an Element:

   • After modifying my_list through the increase function, the second element of my_list (my_list[1]) is printed.

Output:

• The original list my_list = [10, 20, 30] is modified in-place to [11, 21, 31].
• my_list[1], which is now 21, is printed.

Final Output:

21