Question

Write a function that takes a list that is sorted in ascending order and a number as arguments. The function should do the following:

1. Insert the number passed as argument in a sorted list.
2. Delete the number from the list.

Answer 1

The first function inserts the number at its correct sorted position. The second function deletes the first occurrence of the number, if present.

def insert_sorted(data_list, number):
    """Insert number into an ascending sorted list."""
    position = 0

    # Find the correct insertion position
    while position < len(data_list) and data_list[position] < number:
        position += 1

    data_list.insert(position, number)
    return data_list


def delete_number(data_list, number):
    """Delete the first occurrence of number from the list."""
    if number in data_list:
        data_list.remove(number)
        return data_list

    print("Element not found")
    return data_list


numbers = [2, 6, 7, 10, 14, 15, 16, 19]
print(insert_sorted(numbers, 12))
print(delete_number(numbers, 12))

[2, 6, 7, 10, 12, 14, 15, 16, 19]
[2, 6, 7, 10, 14, 15, 16, 19]