feat: add solutions to lc problem: No.3691

[yanglbme]

No description provided.

[Copilot]

Pull request overview

Adds multi-language reference solutions and documentation for LeetCode 3691. Maximum Total Subarray Value II in the solution/3600-3699/3691... directory.

Changes:

• Added Sparse Table (RMQ) + priority-queue based solutions in Python/Java/C++/Go/TypeScript.
• Expanded README.md and README_EN.md with a full explanation and code listings for Method 1.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
solution/3600-3699/3691.Maximum Total Subarray Value II/Solution.ts	TypeScript implementation using Sparse Table + heap to take top-k subarray values.
solution/3600-3699/3691.Maximum Total Subarray Value II/Solution.py	Python implementation using Sparse Table + heapq.
solution/3600-3699/3691.Maximum Total Subarray Value II/Solution.java	Java implementation using Sparse Table + PriorityQueue.
solution/3600-3699/3691.Maximum Total Subarray Value II/Solution.go	Go implementation using Sparse Table + container/heap.
solution/3600-3699/3691.Maximum Total Subarray Value II/Solution.cpp	C++ implementation using Sparse Table + priority_queue.
solution/3600-3699/3691.Maximum Total Subarray Value II/README.md	Chinese solution write-up + code tabs.
solution/3600-3699/3691.Maximum Total Subarray Value II/README_EN.md	English solution write-up + code tabs.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.