Enhancement/issue 8427

[elsayed2440]

Describe your change:

Describe your change:

Impelementation of 2 algorithms from the ones mentioned in the issue #8427 , namely the sliding window algorithm and Kadane's algorithm.

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
• All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

[cclauss]

Please stop opening and closing the same pull request as it pollutes my inbox. Instead make multiple commits to the same pull request until you are satisfied with the result.

Please do not put the issue number in the title because it is not self-documenting and it is not clickable. If #8427 is in the body of the commit message the visitors can click on it.