feat: add solutions to lc problem: No.3842

[yanglbme]

No description provided.

[Copilot]

Pull request overview

This pull request adds solutions to LeetCode problem #3842 "Toggle Light Bulbs", a simple problem that involves toggling light bulbs and returning which ones are on at the end.

Changes:

• Added complete bilingual documentation (Chinese and English README files) with problem description, solution explanation, and complexity analysis
• Implemented solutions in five programming languages (Python, Java, C++, Go, TypeScript) using a simulation approach with XOR toggle operations
• All solutions use O(n) time complexity and O(M) space complexity where M is the maximum bulb number (101)

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
solution/3800-3899/3842.Toggle Light Bulbs/README.md	Chinese documentation with problem description, examples, constraints, and multi-language solution code
solution/3800-3899/3842.Toggle Light Bulbs/README_EN.md	English documentation with problem description, examples, constraints, and multi-language solution code
solution/3800-3899/3842.Toggle Light Bulbs/Solution.py	Python implementation using array simulation with XOR toggle
solution/3800-3899/3842.Toggle Light Bulbs/Solution.java	Java implementation using array simulation with XOR toggle
solution/3800-3899/3842.Toggle Light Bulbs/Solution.cpp	C++ implementation using array simulation with XOR toggle
solution/3800-3899/3842.Toggle Light Bulbs/Solution.go	Go implementation using array simulation with XOR toggle
solution/3800-3899/3842.Toggle Light Bulbs/Solution.ts	TypeScript implementation using array simulation with XOR toggle

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