Add solutions for October 14 & 15 POTD

[Dhairyati]

Description

Fixes: #291 (replace with the issue number, if applicable)
Close: #291 (replace with the issue number, if applicable)

Type of Change

• Question Added
• Solution Added
• Other (please specify):

Checklist

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation (if applicable).
• My changes generate no new warnings.
• I have added tests to cover my changes (if applicable).
• All new and existing tests pass.

Additional Notes

Both solutions are tested on GFG and are working correctly.

[github-actions]

Great job, @Dhairyati! Thanks for creating the pull request.
Soon the maintainers/owner will review it and provide you with feedback/suggestions.
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