ZO:{9vt=/
Q TM+WD
快速排序: ;sb0,2YyP
JWM/np6
package org.rut.util.algorithm.support; 8&H1w9NrX_
Xig%Q~oMp
import org.rut.util.algorithm.SortUtil; 6]na#<
bSBI[S
/** ("wPkm^
* @author treeroot CEt_wKzf
* @since 2006-2-2 |(Io(e
* @version 1.0 wHdq :,0-!
*/ 0W#.$X5
public class QuickSort implements SortUtil.Sort{ W&6ye
iQS?LksQX
/* (non-Javadoc) h(jg7R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ptYQP^6S[
*/ =v1s@5;~
public void sort(int[] data) { o
KX!{
quickSort(data,0,data.length-1); wN"irXG
} v='7.A
private void quickSort(int[] data,int i,int j){ eRC@b^~
int pivotIndex=(i+j)/2;
mii9eZ
//swap IN),Lu0K
SortUtil.swap(data,pivotIndex,j); ,NKDEcw]
0p:n'P
int k=partition(data,i-1,j,data[j]); ^25$=0
SortUtil.swap(data,k,j); #>[+6y]U!
if((k-i)>1) quickSort(data,i,k-1); v-4eN1OS
if((j-k)>1) quickSort(data,k+1,j); -,3Ka:
ZJ u\
} O3B\K <l
/** 4LKOBiEM
* @param data 'N0d==aI
* @param i rQ.j$U
* @param j O zY&^:>
* @return ytr~} M%
*/ <