How can I optimize my C++ algorithms?
There are several strategies for optimizing C++ algorithms, such as reducing time complexity, using efficient data structures, and minimizing memory usage. What specific algorithm are you working on?
I'm working on a sorting algorithm. It's currently O(n^2).
You might want to consider using a more efficient sorting algorithm like QuickSort or MergeSort, which have average time complexities of O(n log n). Would you like to see an example implementation?
Yes, please provide an example of QuickSort in C++.
Sure! Here's a simple implementation of QuickSort in C++:
void quickSort(int arr[], int low, int high) {
if (low < high) {
int pi = partition(arr, low, high);
quickSort(arr, low, pi - 1);
quickSort(arr, pi + 1, high);
}
}
Let me know if you need further explanation!
What are some common pitfalls to avoid when implementing QuickSort?
Common pitfalls include not handling duplicate values properly, choosing a poor pivot, and not considering the base case correctly. Would you like tips on how to choose a good pivot?
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