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Selection Sort Algorithm

• The time complexity of Selection Sort algorithm is O(n^2) in all cases (best, average, and worst).
• Selection Sort algorithm is not stable by default.
• The main advantage of Selection Sort algorithm is its simplicity and ease of implementation, with minimal auxiliary memory required.

Stability of Sorting Algorithms

• A stable sorting algorithm maintains the relative order of equal sort elements, whereas an unstable sorting algorithm does not.
• In a stable sorting algorithm, when multiple records have the same key, their original order is preserved.
• In an unstable sorting algorithm, the original order of equal keys is not preserved.

Selection Sort in Specific Scenarios

• Selection sort is a good choice when the array is small, as it has low overhead in terms of auxiliary memory and is simple to implement.
• However, the main disadvantage of selection sort is its inefficiency on large datasets due to its high time complexity.

Note: The notes focus on key facts and concepts related to Selection Sort, stability of sorting algorithms, and specific scenarios where it can be used effectively.