### Implementing a Linked List Slicing FunctionIn this exercise, we will create a function `slice_link` to slice a given linked list structure called `link`. The function should slice the `link` starting at a specified `start` position and ending just before the `end` position, similar to how slicing works in a normal Python list.```pythondef slice_link(link, start, end): """ Slices a Link from start to end (as with a normal Python list). Usage Examples: >> link = Link(3, Link(1, Link(4, Link(1, Link(5, Link(9)))))) >> new = slice_link(link, 1, 4) >> new Link(1, Link(4, Link(1))) >> link2 = slice_link(Link(1), 0, 1) >> link2 Link(1) >> link3 = slice_link(Link.empty, 0, 0) >> link3 () """ "*** YOUR CODE HERE ***"```### Explanation- **Objective**: To develop a function that replicates list slicing behavior for a custom linked list. - **Example Initialization**: - `Link(3, Link(1, Link(4, Link(1, Link(5, Link(9))))))`: This initializes a linked list of elements [3, 1, 4, 1, 5, 9].- **Usage**: - `slice_link(link, 1, 4)` returns a sublist [1, 4, 1]. - `slice_link(Link(1), 0, 1)` processes a single-element linked list, returning [1]. - `slice_link(Link.empty, 0, 0)` handles an empty list, returning an empty list ().Ensure your function correctly iterates through the linked list, adjusting `start` and `end` indices as necessary to mimic Python-like list slicing.

We need to write a function in Python for the required scenario.

Implement a function slice_link that slices a given link. slice_link should slice the link starting at start and ending one element before end, as with slicing a normal Python list. def slice_link (link, start, end): ""Slices a Link from start to end >>> link = Link (3, Link (1, >>> new = slice_link (link, >>> new Link (1, Link (4, Link (1))) >>> link2 = slice_link (Link (1), 0, 1) >>> link2 >>> link3 () |||||| (as with a normal Python list). Link (1, Link (5, Link (9)))))) Link (4, 1, 4) Link (1) >>> link3= slice_link (Link.empty, 0, 0) "*** YOUR CODE HERE ***"

Implement a function slice_link that slices a given link. slice_link should slice the link starting at start and ending one element before end, as with slicing a normal Python list. def slice_link (link, start, end): ""Slices a Link from start to end >>> link = Link (3, Link (1, >>> new = slice_link (link, >>> new Link (1, Link (4, Link (1))) >>> link2 = slice_link (Link (1), 0, 1) >>> link2 >>> link3 () |||||| (as with a normal Python list). Link (1, Link (5, Link (9)))))) Link (4, 1, 4) Link (1) >>> link3= slice_link (Link.empty, 0, 0) "* YOUR CODE HERE *"

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

### Implementing a Linked List Slicing Function

In this exercise, we will create a function `slice_link` to slice a given linked list structure called `link`. The function should slice the `link` starting at a specified `start` position and ending just before the `end` position, similar to how slicing works in a normal Python list.

```python
def slice_link(link, start, end):
"""
Slices a Link from start to end (as with a normal Python list).

Usage Examples:
>> link = Link(3, Link(1, Link(4, Link(1, Link(5, Link(9))))))
>> new = slice_link(link, 1, 4)
>> new
Link(1, Link(4, Link(1)))

>> link2 = slice_link(Link(1), 0, 1)
>> link2
Link(1)

>> link3 = slice_link(Link.empty, 0, 0)
>> link3
()
"""
"*** YOUR CODE HERE ***"
```

### Explanation

- **Objective**: To develop a function that replicates list slicing behavior for a custom linked list.

- **Example Initialization**:
- `Link(3, Link(1, Link(4, Link(1, Link(5, Link(9))))))`: This initializes a linked list of elements [3, 1, 4, 1, 5, 9].

- **Usage**:
- `slice_link(link, 1, 4)` returns a sublist [1, 4, 1].
- `slice_link(Link(1), 0, 1)` processes a single-element linked list, returning [1].
- `slice_link(Link.empty, 0, 0)` handles an empty list, returning an empty list ().

Ensure your function correctly iterates through the linked list, adjusting `start` and `end` indices as necessary to mimic Python-like list slicing.

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