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package org.rut.util.algorithm.support; f1
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import org.rut.util.algorithm.SortUtil; VZCCMh-
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/** \KkAU 6
* @author treeroot a"whg~
* @since 2006-2-2 e8VtKVcY
* @version 1.0 gbjql+Mx+
*/ pXl*`[0X#
public class QuickSort implements SortUtil.Sort{ LHHDD\X
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/* (non-Javadoc) Mo0pN\A}h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `l}+BI`4
*/ BB3wG*q
public void sort(int[] data) { SoNT12>
quickSort(data,0,data.length-1); \) vI-
} {]3Rk
private void quickSort(int[] data,int i,int j){ ~s-"u
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int pivotIndex=(i+j)/2; Oi,:q&
//swap +|6 u
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SortUtil.swap(data,pivotIndex,j); ]=jpqxlx
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int k=partition(data,i-1,j,data[j]); D0
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SortUtil.swap(data,k,j); DRmN+2I
if((k-i)>1) quickSort(data,i,k-1); }D*5PV%d
if((j-k)>1) quickSort(data,k+1,j); ,xuA%CF-S
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} f ]DO2r
/** $uCY\xqZ
* @param data Nj$h/P
* @param i >NAg*1
* @param j /4Jm]"
* @return N2\{h(*u
*/ nW!pOTJq21
private int partition(int[] data, int l, int r,int pivot) { &ngG_y8}&
do{ (VB-5&b
while(data[++l] while((r!=0)&&data[--r]>pivot); NG\^>.8
SortUtil.swap(data,l,r); ">!<