Implement the array-backed list method del_span, which accepts parameters idx and n, and removes n elements starting at index idx.
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Implement the array-backed list method del_span, which accepts parameters idx and n, and removes n elements

starting at index idx. Your implementation should not use any other array-list methods, and may only perform the following operations on the backing list (named data in the provided skeleton code):

• len(self.data) • Accessing a valid list index i, e.g., self.data[i] • self.data.append(None) • del self.data[len(self.data)-1]

E.g., calling del_span(2, 5) on the list with elements [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] results in the list being shortened to [0, 1, 7, 8, 9].

E.g., calling del_span(7, 1) on the list with elements [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] results in the list being shortened to [0, 1, 2, 3, 4, 5, 6, 8, 9].

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