feat: add solutions to lc problem: No.3652

[yanglbme]

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[Copilot]

Pull request overview

This PR adds solutions to LeetCode problem #3652 "Best Time to Buy and Sell Stock using Strategy" from Weekly Contest 463. The problem involves maximizing profit from stock trading by optionally modifying a consecutive window of the trading strategy.

• Implements a prefix sum + enumeration approach with O(n) time complexity
• Provides solutions in 7 programming languages (Python, Java, C++, Go, TypeScript, Rust, C#)
• Includes comprehensive documentation in both Chinese and English with problem description, examples, and algorithm explanation

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/README.md	Chinese documentation with problem description, examples, constraints, and solution explanation
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/README_EN.md	English documentation with problem description, examples, constraints, and solution explanation
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.py	Python implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.java	Java implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.cpp	C++ implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.go	Go implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.ts	TypeScript implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.rs	Rust implementation using prefix sums
solution/3600-3699/3652.Best Time to Buy and Sell Stock using Strategy/Solution.cs	C# implementation using prefix sums
solution/CONTEST_README.md	Added problem entry to contest listing
solution/CONTEST_README_EN.md	Added problem entry to English contest listing
solution/README.md	Added problem entry to main problem index
solution/README_EN.md	Added problem entry to English problem index

The code implementations are clean, consistent across all languages, and follow the established patterns in the repository. No issues were found during the review.

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