Single linked list sorted

Description

[Provide a brief description of the changes made in this pull request.]

[Closes #[issue_number]] (if applicable)

[Describe the changes made in this pull request in detail. Include any relevant code snippets or configuration files.]

[ ] I have tested these changes locally.
[ ] I have added necessary documentation or updated existing documentation (if applicable).
[ ] I have followed the project's coding style and best practices.
[ ] I have added/updated tests to ensure the changes are working as expected.
[ ] I have reviewed the changes and ensured there are no typos or syntax errors.

[Include any relevant screenshots or images to showcase the changes (if applicable).]

[Add any additional information or context about the pull request.]