C语言快速排序的代码怎么写
时间: 2023-05-16 21:06:01 浏览: 46
以下是 C 语言快速排序的代码:
```
#include <stdio.h>
void quickSort(int arr[], int left, int right) {
int i = left, j = right;
int tmp;
int pivot = arr[(left + right) / 2];
/* partition */
while (i <= j) {
while (arr[i] < pivot)
i++;
while (arr[j] > pivot)
j--;
if (i <= j) {
tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
i++;
j--;
}
};
/* recursion */
if (left < j)
quickSort(arr, left, j);
if (i < right)
quickSort(arr, i, right);
}
int main() {
int arr[] = {10, 7, 8, 9, 1, 5};
int n = sizeof(arr) / sizeof(arr[0]);
int i;
printf("Original array: ");
for (i = 0; i < n; i++)
printf("%d ", arr[i]);
printf("\n");
quickSort(arr, 0, n - 1);
printf("Sorted array: ");
for (i = 0; i < n; i++)
printf("%d ", arr[i]);
printf("\n");
return 0;
}
```
这段代码使用了快速排序算法对一个整数数组进行排序。