feat: add solutions to lc problems: No.4010~4012

[yanglbme]

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Pull request overview

This PR adds new LeetCode solutions for problems 4010–4012 to the repository, including multi-language implementations and updated Chinese/English READMEs with explanations and code tabs.

Changes:

• Added solution implementations for LC 4010, 4011, and 4012 in TypeScript / Python / Java / Go / C++.
• Expanded README.md and README_EN.md for each problem with solution explanations and embedded code.
• Standardized most languages on integer-safe comparisons for ratio checks (but one Python snippet currently diverges—see comments).

Reviewed changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/Solution.ts	Adds TypeScript solution implementation
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/Solution.py	Adds Python solution implementation
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/Solution.java	Adds Java solution implementation
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/Solution.go	Adds Go solution implementation
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/Solution.cpp	Adds C++ solution implementation
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/README.md	Adds CN explanation + multi-language code tabs (incl. TS)
solution/4000-4099/4012.Count of Unfinished Tasks After Each Shift/README_EN.md	Adds EN explanation + multi-language code tabs (incl. TS)
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/Solution.ts	Adds TypeScript solution implementation
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/Solution.py	Adds Python solution implementation
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/Solution.java	Adds Java solution implementation
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/Solution.go	Adds Go solution implementation
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/Solution.cpp	Adds C++ solution implementation
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/README.md	Adds CN explanation + multi-language code tabs (incl. TS)
solution/4000-4099/4011.Count Subarrays With Even Odd Ratio I/README_EN.md	Adds EN explanation + multi-language code tabs (incl. TS)
solution/4000-4099/4010.Maximize Pair Strength Using GCD/Solution.ts	Adds TypeScript solution implementation
solution/4000-4099/4010.Maximize Pair Strength Using GCD/Solution.py	Adds Python solution implementation
solution/4000-4099/4010.Maximize Pair Strength Using GCD/Solution.java	Adds Java solution implementation
solution/4000-4099/4010.Maximize Pair Strength Using GCD/Solution.go	Adds Go solution implementation
solution/4000-4099/4010.Maximize Pair Strength Using GCD/Solution.cpp	Adds C++ solution implementation
solution/4000-4099/4010.Maximize Pair Strength Using GCD/README.md	Adds CN explanation + multi-language code tabs (incl. TS)
solution/4000-4099/4010.Maximize Pair Strength Using GCD/README_EN.md	Adds EN explanation + multi-language code tabs (incl. TS)

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