Create 0120-triangle leetcode solution

[NAVJOT-786]

Related Issue

Fix #3816

Description

add the solution for LeetCode problem 120, "Triangle," to the open source project documentation. This addition will help users understand and solve the problem efficiently.

[Please include a brief description of the changes or features added]

Type of PR

• Bug fix
• Feature enhancement
• [ X] Documentation update
• Security enhancement
• Other (specify): _______________

Screenshots / Videos (if applicable)

[Attach any relevant screenshots or videos demonstrating the changes]

Checklist

• [X ] I have performed a self-review of my code.
• [X ] I have read and followed the Contribution Guidelines.
• [ X] I have tested the changes thoroughly before submitting this pull request.
• [ X] I have provided relevant issue numbers, screenshots, and videos after making the changes.
• [ X] I have commented my code, particularly in hard-to-understand areas.
• [ X] I have followed the code style guidelines of this project.
• [ X] I have checked for any existing open issues that my pull request may address.
• [ X] I have ensured that my changes do not break any existing functionality.
• [ X] Each contributor is allowed to create a maximum of 4 issues per day. This helps us manage and address issues efficiently.
• [ X] I have read the resources for guidance listed below.
• [ X] I have followed security best practices in my code changes.

Additional Context

[Include any additional information or context that might be helpful for reviewers.]

Resources for Guidance

Please read the following resources before submitting your contribution:

• [ X] Code Harbor Hub Community Features
• [ X] Docusaurus Documentation
• [ X] React.js Documentation
• [X ] Markdown Guide
• [ X] MDX Documentation
• [ X] Mermaid Documentation

Resources for DSA Features on Our Site:

• [ X] Tabs: Switch Languages
• [ X] Line Numbering
• [ X] Math Equations

Contribution Guidelines

Thank you for considering contributing to our project! To ensure smooth collaboration and effective contribution management, please adhere to the following guidelines:

Issue Creation

1. Limit on Issues:
   • Each contributor is allowed to create a maximum of 4 issues per day. This helps us manage and address issues efficiently.

Contribution Levels

2. Basic Contributions:

   • This project is primarily focused on documentation. Most of the setup has been completed, so contributors will generally need to work on basic code tasks, such as writing tests.
   • For these tasks, issues will be assigned the level1 label.

3. Acknowledging Hard Work:

   • If a contributor puts in significant effort on a task, the issue will be upgraded to level2. This is our way of recognizing and appreciating extra effort.

4. Feature Additions and Component Work:

   • Contributors working on new features or components using JSX/TSX will be assigned a level based on the complexity and quality of their work.
   • The more complex and valuable the contribution, the higher the level assigned.

Level Definitions

• Level1:
  • Tasks are straightforward, such as fixing minor bugs, writing tests, or making simple documentation updates.
• Level2:
  • Tasks require more effort, such as addressing complex bugs, improving existing features, or making substantial documentation improvements.
• Level3:
  • Tasks are highly complex and involve significant new feature development, major refactoring, or extensive contributions to the project’s core components.

We look forward to your contributions and appreciate your effort in helping us improve the project!

[deepsource-io]

Here's the code health analysis summary for commits abb6d38..83f7f63. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[github-actions]

Great job, @NAVJOT-786! 🎉 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!

[github-actions]

⚡️ Lighthouse Report for the Deploy Preview of this PR 🚀

🔗 Site: CodeHarborHub | Live Site

URL 🌐	Performance	Accessibility	Best Practices	SEO	📊
/	🔴 39	🟡 86	🟡 75	🟢 100	📄
/docs	🔴 40	🟢 96	🟢 96	🟢 100	📄
/docs/category/javascript	🔴 44	🟢 96	🟢 96	🟢 100	📄
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/courses/category/reactjs	🟡 51	🟢 96	🟢 96	🟢 100	📄
/dsa-problems	🔴 48	🟢 96	🟢 96	🟢 100	📄
/dsa-problems/category/leetcode-problems	🔴 46	🟢 96	🟢 96	🟢 100	📄
/dsa-solutions	🟡 52	🟢 96	🟢 96	🟢 100	📄
/dsa-solutions/category/leetcode-solutions	🔴 46	🟢 96	🟢 96	🟢 100	📄
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/showcase	🔴 49	🟢 95	🟡 75	🟡 86	📄
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/docs/tags	🔴 49	🟢 96	🟢 96	🟡 86	📄
/product	🟡 51	🟢 96	🟢 96	🟢 100	📄

[ajay-dhangar]

There are a few errors in the pull request. First, you need to add a .md file extension to your code file. The file should be named 0120-triangle.md. Second, you need to add an id like id: min-falling-path-sum-in-a-triangle. Once you have made these changes, you can resubmit your pull request.

[NAVJOT-786]

done with the requested changes please check

[ajay-dhangar]

Done