Updated potd_15_10_2024.cpp

[viraj200524]

Description

Updated the code file for potd of october 2024, file name -> potd_15_10_2024.cpp for optimized solution for problem of the day with Time Complexity of O(n) and space Complexity of O(1).

Fixes: #[issue_number] (replace with the issue number, if applicable)

Use [x] to represent a checked (ticked) box.✅ Use [ ] to represent an unchecked box.❌

Type of Change

• [ ] Question Added
• [ ] Solution Added
• [x] Updated Existing solution:

How to Test

Provide a brief description of how to test your changes. Include steps, commands, or screenshots if necessary.

1. Step 1 -> create a .cpp file for the code
2. Step 2 -> execute the code on command line or any code editor
3. Step 3

Checklist

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

Additional Notes

Please add any other information that is relevant to this pull request, including potential risks, alternative solutions considered, or future improvements.

[Gyanthakur]

You are not following my account.

[viraj200524]

@Gyanthakur i have followed your account now.