用栈消除快速排序的递归c语言代码
时间: 2023-12-16 11:27:47 浏览: 27
以下是使用栈消除快速排序递归的C语言代码:
```c
#include <stdio.h>
#define MAX_SIZE 100
int partition(int arr[], int low, int high) {
int pivot = arr[high];
int i = low - 1;
for (int j = low; j < high; j++) {
if (arr[j] < pivot) {
i++;
int temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
int temp = arr[i + 1];
arr[i + 1] = arr[high];
arr[high] = temp;
return i + 1;
}
void quickSort(int arr[], int low, int high) {
int stack[MAX_SIZE];
int top = -1;
stack[++top] = low;
stack[++top] = high;
while (top >= 0) {
high = stack[top--];
low = stack[top--];
int pivotIndex = partition(arr, low, high);
if (pivotIndex - 1 > low) {
stack[++top] = low;
stack[++top] = pivotIndex - 1;
}
if (pivotIndex + 1 < high) {
stack[++top] = pivotIndex + 1;
stack[++top] = high;
}
}
}
int main() {
int arr[] = {10, 7, 8, 9, 1, 5};
int n = sizeof(arr) / sizeof(arr[0]);
quickSort(arr, 0, n - 1);
printf("Sorted array: ");
for (int i = 0; i < n; i++) {
printf("%d ", arr[i]);
}
return 0;
}
```
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