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package org.rut.util.algorithm.support; f#+ h_1#
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import org.rut.util.algorithm.SortUtil; Cm>F5$l{
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/** ^u74WN
* @author treeroot =+WFx3/
* @since 2006-2-2 W_EN4p~J
* @version 1.0 z@j&vW
*/ }8e%s;C
public class QuickSort implements SortUtil.Sort{ lX7^LB
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/* (non-Javadoc) :'=C/AL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i=UJ*c
*/ }mK_d9d x
public void sort(int[] data) { 4#uoPkLK
quickSort(data,0,data.length-1); o%iTYR:x
} !{LwX Kf
private void quickSort(int[] data,int i,int j){ PGDlSB^O
int pivotIndex=(i+j)/2; R&A.F+Zgt
//swap b/`'?|
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SortUtil.swap(data,pivotIndex,j); j|9 2
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int k=partition(data,i-1,j,data[j]); Q[^d{e*l
SortUtil.swap(data,k,j); bx>D
if((k-i)>1) quickSort(data,i,k-1); xcA`W|M
if((j-k)>1) quickSort(data,k+1,j); zrM|8Cu
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} I`l<}M
/** hGLBFe#3
* @param data dX*PR3I-3
* @param i !k)
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* @param j :gn!3P}p?
* @return *np|PyLP:
*/ 'u~use"
private int partition(int[] data, int l, int r,int pivot) { ty
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do{ AmHIG_'
while(data[++l] while((r!=0)&&data[--r]>pivot); Rz<fz"/2<