added problem 78 of leetcode

[ayush-848]

Related Issue

#861

Description

Added the leetcode solution for Problem 0078

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Screenshots / Videos (if applicable)

Checklist

• I have performed a self-review of my code.
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

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[deepsource-io]

Here's the code health analysis summary for commits 729a834..a04ab91. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[sonarqubecloud]

Quality Gate passed

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0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[github-actions]

Hi there! 👋 Thank you for submitting your pull request to CodeHarborHub. Great job on the contribution! 🎉 We appreciate your efforts and our team will review it soon. If you have any questions or need further assistance, feel free to reach out. Keep up the great work!

[github-actions]

Great job, @ayush-848! 🎉 Thank you for submitting your pull request to CodeHarborHub. We appreciate your contribution and enthusiasm! Our team will review it soon. If you have any questions or need further assistance, feel free to reach out. Thanks for contributing!

[ayush-848]

@ajay-dhangar I have maintained the format of problem solution according to the Two Sum problem.
Can I expect a label of level 3 for this?
You can check the code

[ajay-dhangar]

Done

[ayush-848]

Done

@ajay-dhangar why have you changed it to level 1 from level 2?