文章转载于:http://blog.youkuaiyun.com/vayne_xiao/article/details/53508973
如果以上C代码看不懂,请看下面java代码:
public static int Partition(int[] a, int p, int r) {
int x = a[r - 1];
int i = p - 1;
int temp;
for (int j = p; j <= r - 1; j++) {
if (a[j - 1] <= x) {
// 交换(a[j-1],a[i-1]);
i++;
temp = a[j - 1];
a[j - 1] = a[i - 1];
a[i - 1] = temp;
}
}
// 交换(a[r-1,a[i+1-1]);
temp = a[r - 1];
a[r - 1] = a[i + 1 - 1];
a[i + 1 - 1] = temp;
return i + 1;
}
public static void QuickSort(int[] a,int p,int r){
if(p < r) {
int q = Partition(a, p, r);
QuickSort(a, p, q-1);
QuickSort(a, q + 1, r);
}
}
// main方法中将数组传入排序方法中处理,之后打印新的数组
public static void main(String[] stra) {
int[] a = { 7, 10, 3, 5, 4, 6, 2, 8, 1, 9 };
QuickSort(a, 1, 10);
for (int i = 0; i < a.length; i++)
System.out.print(a[i]+" ");
}