Artemis: Refactor String and Vector Manipulation Methods for Improved Efficiency

[artemis-gen-ai]

This pull request includes several refactorings across multiple classes to enhance performance and readability. Key changes include:

1. Strops Class:

   • Refactored reverse method to use StringBuilder for efficient string reversal.
   • Improved isPalindrome method with a two-pointer technique and enhanced readability by using str.isEmpty().

2. DsLinkedList Class:

   • Simplified shuffle method by utilizing Collections.shuffle() instead of a manual implementation.
   • Streamlined slice method using l.subList(start, end) for cleaner code.

3. DsVector Class:

   • Replaced bubble sort in sortVector with Collections.sort() for better performance.
   • Optimized reverseVector and rotateVector methods using built-in collection methods.
   • Enhanced mergeVectors method by using addAll() for efficiency.

4. General Improvements:

   • Optimized sumRange with a direct formula for performance.
   • Enhanced error handling in maxArray and simplified sumModulus to reduce memory usage.
   • Improved vector initialization in generateVector by setting an initial capacity to reduce resizing overhead.

These changes collectively improve the maintainability and efficiency of the codebase.

Metric	Improvement	Value
runtime	🟢 28.15%	0.69 s
cpu	🔴 -26.52%	204.35 %
memory	🟢 13.21%	44.17 MB