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package org.rut.util.algorithm.support; IUhp;iH
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import org.rut.util.algorithm.SortUtil; G8NRj9k?
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/** zW'/2W.
* @author treeroot 4DM L
* @since 2006-2-2 z
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* @version 1.0
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*/ -qn[HXq
public class QuickSort implements SortUtil.Sort{ ~%aJFs
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/* (non-Javadoc) ,OBQv.D3>a
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c2b6B.4
*/ _:,.yRez
public void sort(int[] data) { w yD%x(
quickSort(data,0,data.length-1); I#l;~a<9z
} xw%)rm<t
private void quickSort(int[] data,int i,int j){ GAJ~$AiwHH
int pivotIndex=(i+j)/2; P06.1
//swap (Nt[v;BnO
SortUtil.swap(data,pivotIndex,j); mq`5w)S)\o
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int k=partition(data,i-1,j,data[j]); A#:8X1w
SortUtil.swap(data,k,j);
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if((k-i)>1) quickSort(data,i,k-1); $,`VUe{
if((j-k)>1) quickSort(data,k+1,j); YeIe\3x!N
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} $5/\Z
/** cHn;}l!I
* @param data _[$#
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* @param i 'oi2Seq
* @param j U2&HSE|2J
* @return T#e4":A&x
*/ q}Rlo/R
private int partition(int[] data, int l, int r,int pivot) { FH
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do{ n8FT<pUq
while(data[++l] while((r!=0)&&data[--r]>pivot); 8dV=1O$/
SortUtil.swap(data,l,r); q6)p*}-
} b3^R,6]x&