which of the following is the useful implementation of quick sort Options List Stack Set None of these

Analysis of Options for Quick Sort Implementation

1. List: Quick sort is a popular sorting algorithm that can be efficiently implemented on lists (arrays or linked lists). It is frequently used in practice for its average-case efficiency.

2. Stack: While quick sort uses a stack implicitly for its recursive calls, it is not specifically designed to sort stacks. Therefore, it is not directly an implementation of quick sort.

3. Set: Quick sort does not inherently apply to sets as it is a sorting algorithm, and sets are typically unordered collections.

4. None of these: This option is not applicable since quick sort can indeed be implemented on lists.

Conclusion

The most useful implementation of quick sort among the given options is List.