Describe the process of deleting an element from the end of an array.

To delete an element from the end of an array, you need to follow the following steps:

1. Determine the length of the array: Before deleting an element from the end, you need to know the current length of the array. This can be done by using the length property or by iterating through the array and counting the number of elements.

2. Check if the array is empty: If the array is empty (length = 0), then there is no element to delete from the end. In this case, you can either throw an error or display a message indicating that the array is already empty.

3. Decrement the length of the array: Since you are deleting an element from the end, you need to decrease the length of the array by 1. This can be done by subtracting 1 from the current length.

4. Access the last element: To delete the element from the end, you need to access the last element of the array. In most programming languages, arrays are zero-indexed, so the last element can be accessed using the index (length - 1).

5. Delete the last element: Once you have accessed the last element, you can delete it by either setting its value to null or by removing it from the array entirely. The specific method of deletion depends on the programming language or data structure being used.

6. Optional: Resize the array (if necessary): If the array is dynamically allocated and the memory is not automatically managed, you may need to resize the array after deleting the element. This is done to free up the memory occupied by the deleted element. Resizing the array involves allocating a new array with a smaller size and copying the remaining elements from the original array to the new array.

7. End of the deletion process: After deleting the element from the end and resizing the array (if necessary), the deletion process is complete. The array now contains one less element, and the length has been updated accordingly.

It is important to note that deleting an element from the end of an array has a time complexity of O(1) since accessing the last element and updating the length can be done in constant time. However, resizing the array (if necessary) may have a time complexity of O(n), where n is the number of elements in the array, as it involves copying the remaining elements to a new array.