基于java的双向快速排序
时间: 2023-11-12 16:55:12 浏览: 27
基于Java的双向快速排序可以通过递归实现。下面是一个示例代码:
```java
class QuickSort {
public static void quickSort(int[] arr, int low, int high) {
if (low < high) {
int pivotIndex = partition(arr, low, high);
quickSort(arr, low, pivotIndex - 1);
quickSort(arr, pivotIndex + 1, high);
}
}
private static int partition(int[] arr, int low, int high) {
int pivot = arr[low];
int left = low + 1;
int right = high;
while (left <= right) {
while (left <= right && arr[left] < pivot) {
left++;
}
while (left <= right && arr[right] > pivot) {
right--;
}
if (left < right) {
swap(arr, left, right);
}
}
swap(arr, low, right);
return right;
}
private static void swap(int[] arr, int i, int j) {
int temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
public class Main {
public static void main(String[] args) {
int[] arr = {4, 2, 6, 8, 3, 1, 5, 7};
QuickSort.quickSort(arr, 0, arr.length - 1);
for (int num : arr) {
System.out.print(num + " ");
}
}
}
```
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