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快速排序: qUd7O](b=?
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package org.rut.util.algorithm.support; !^%3
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import org.rut.util.algorithm.SortUtil; LG&BWs!
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/** )k=KLQ\b
* @author treeroot :')[pO_FW*
* @since 2006-2-2 ]gq)%T]
* @version 1.0 Lto*L X
*/ 2&V>pE
public class QuickSort implements SortUtil.Sort{ fB3Jp~$
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/* (non-Javadoc) @!P2f
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <2U@O`
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*/ { KWVPeh
public void sort(int[] data) { G1z*e.+y
quickSort(data,0,data.length-1); Xj\ToO
} :cC$1zv@
private void quickSort(int[] data,int i,int j){ Q]K` p(
int pivotIndex=(i+j)/2; ,,{;G'R|
//swap &IQ=M.!r
SortUtil.swap(data,pivotIndex,j); uI-T]N:W8x
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int k=partition(data,i-1,j,data[j]); \EfX3ghPI
SortUtil.swap(data,k,j); `3F#k[IR
if((k-i)>1) quickSort(data,i,k-1); -'$ob~*
if((j-k)>1) quickSort(data,k+1,j); :/T\E\Qr
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} a&_