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description: Analyze code for performance issues and suggest optimizations
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# Code Optimization

Review the provided code for the following issues in order of priority:

1. **Performance bottlenecks** - identify O(n²) operations, inefficient loops
2. **Memory leaks** - find unreleased resources, circular references
3. **Algorithm improvements** - suggest better algorithms or data structures
4. **Caching opportunities** - identify repeated computations
5. **Concurrency issues** - find race conditions or threading problems

Format your response with:
- Issue severity (Critical/High/Medium/Low)
- Location in code
- Explanation
- Recommended fix with code example

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**Last Updated**: April 9, 2026
