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Pull request overview
This PR updates the LeetCode #22 “Generate Parentheses” solutions to standardize on a DFS + pruning approach across languages, modernize syntax/types, and remove the previously documented alternate JS/TS “insert () + dedupe” solution.
Changes:
- Refactor TS/JS implementations to use
const+ arrow-function DFS and stronger typing in TS. - Update Python/PHP/C++ implementations (and corresponding README snippets) with improved typing/structure and a modern recursive-lambda pattern in C++.
- Remove
Solution2.{ts,js}and the associated “Solution 2” section from both READMEs.
Reviewed changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| solution/0000-0099/0022.Generate Parentheses/Solution2.ts | Removed redundant alternate TS solution. |
| solution/0000-0099/0022.Generate Parentheses/Solution2.js | Removed redundant alternate JS solution. |
| solution/0000-0099/0022.Generate Parentheses/Solution.ts | Modernize DFS definition and add explicit string[] typing for ans. |
| solution/0000-0099/0022.Generate Parentheses/Solution.js | Modernize DFS definition and use const for ans. |
| solution/0000-0099/0022.Generate Parentheses/Solution.py | Add type annotations for DFS helper and normalize string quoting. |
| solution/0000-0099/0022.Generate Parentheses/Solution.php | Refactor closure-based recursion to class-method recursion with stored state. |
| solution/0000-0099/0022.Generate Parentheses/Solution.cpp | Switch to a modern recursive lambda pattern and expand guard formatting. |
| solution/0000-0099/0022.Generate Parentheses/README.md | Sync code snippets with updated implementations; remove “方法二”. |
| solution/0000-0099/0022.Generate Parentheses/README_EN.md | Sync code snippets with updated implementations; remove “Solution 2”. |
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