Create 0463-island-perimeter.md

[tanyagupta01]

Related Issue

Fixes #1479

Description

You are given row x col grid representing a map where grid[i][j] = 1 represents land and grid[i][j] = 0 represents water.

Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one island (i.e., one or more connected land cells).

The island doesn't have "lakes", meaning the water inside isn't connected to the water around the island. One cell is a square with side length 1. The grid is rectangular, width and height don't exceed 100. Determine the perimeter of the island.

Type of PR

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

Screenshots / Videos (if applicable)

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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.
• I have followed the code style guidelines of this project.
• I have checked for any existing open issues that my pull request may address.
• I have ensured that my changes do not break any existing functionality.
• Each contributor is allowed to create a maximum of 4 issues per day. This helps us manage and address issues efficiently.
• I have read the resources for guidance listed below.
• 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:

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

Resources for DSA Features on Our Site:

• Tabs: Switch Languages
• Line Numbering
• Math Equations

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Issue Creation

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

[github-actions]

Great job, @tanyagupta01! 🎉 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!

[deepsource-io]

Here's the code health analysis summary for commits a9b7eba..2427d76. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[ajay-dhangar]

Done