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快速排序: 2BQ
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package org.rut.util.algorithm.support; z[b@V
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import org.rut.util.algorithm.SortUtil; 7''??X
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/** W0dSsjNio
* @author treeroot zZL6z4g
* @since 2006-2-2 uaT!(Y6
* @version 1.0 k.uH~S _
*/ SF7\<'4\N
public class QuickSort implements SortUtil.Sort{ 3O,+=?VK
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/* (non-Javadoc) Ro\8ZXUQa
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {m4b(t`xw
*/ a L} %2
public void sort(int[] data) { J"!vu.[
quickSort(data,0,data.length-1); '~5LY!H(pT
} x-$&g*<
private void quickSort(int[] data,int i,int j){ VJeu8ZJ.
int pivotIndex=(i+j)/2; VEWi_;=J1
//swap &v56#lG
SortUtil.swap(data,pivotIndex,j); [4YTDEv%
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int k=partition(data,i-1,j,data[j]); ni.cTOSx
SortUtil.swap(data,k,j); h{%nC>m;
if((k-i)>1) quickSort(data,i,k-1); nEJq_
if((j-k)>1) quickSort(data,k+1,j); 2GP=&K/A
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} &TUWW