c语言快速排序升序排序
时间: 2023-10-12 09:12:43 浏览: 71
下面是用C语言实现快速排序的升序排序代码:
```c
#include <stdio.h>
void quick_sort(int arr[], int left, int right) {
int i, j, pivot, temp;
if (left < right) {
pivot = left; // 选取基准值
i = left;
j = right;
while (i < j) {
while (arr[i] <= arr[pivot] && i < right)
i++;
while (arr[j] > arr[pivot])
j--;
if (i < j) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
temp = arr[pivot];
arr[pivot] = arr[j];
arr[j] = temp;
quick_sort(arr, left, j - 1);
quick_sort(arr, j + 1, right);
}
}
int main() {
int arr[] = {5, 2, 9, 3, 7, 6, 1, 8, 4};
int n = sizeof(arr) / sizeof(arr[0]);
printf("Original array:\n");
for (int i = 0; i < n; i++) {
printf("%d ", arr[i]);
}
printf("\n");
quick_sort(arr, 0, n - 1);
printf("Sorted array in ascending order:\n");
for (int i = 0; i < n; i++) {
printf("%d ", arr[i]);
}
printf("\n");
return 0;
}
```
输出:
```
Original array:
5 2 9 3 7 6 1 8 4
Sorted array in ascending order:
1 2 3 4 5 6 7 8 9
```