用Java语言实现的各种排序,包括插入排序、冒泡排序、选择排序、Shell排序、快速排序、归并排序、堆排序、SortUtil等。 ;WzT"yW)T
插入排序: MJD4#G
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package org.rut.util.algorithm.support; z;3}GxE-si
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import org.rut.util.algorithm.SortUtil; {:rU5 !n
/** )Q\;N C=4
* @author treeroot rLVAI#ci=
* @since 2006-2-2 0p#36 czqy
* @version 1.0 G)putk@
*/ r&H>JCRZ<=
public class InsertSort implements SortUtil.Sort{ ^]v}AEcmW
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/* (non-Javadoc) i|=XW6J%
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "w A8J%:
*/ IGp-`%9
public void sort(int[] data) { :2?'mKa7
int temp; C{'c_wX
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); q)%C|
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冒泡排序: dXOjaS# ~
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package org.rut.util.algorithm.support; ^@)+P/&
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import org.rut.util.algorithm.SortUtil; 9sRP8Nj|
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/** -x RsYYw
* @author treeroot UIyOn` d "
* @since 2006-2-2 Vxw?"mhP
* @version 1.0 *Lufz-[1
*/ M35}5+
public class BubbleSort implements SortUtil.Sort{ >DV0!'jW
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/* (non-Javadoc) @ce4sSo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0W>O,%z&P#
*/ S-L6KA{
public void sort(int[] data) { hQkmB|];5
int temp; ";zl6g"
for(int i=0;i for(int j=data.length-1;j>i;j--){ *JDc1$H0
if(data[j] SortUtil.swap(data,j,j-1); 2/bck)p=
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选择排序: G3e%~
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package org.rut.util.algorithm.support; :q= XE$%H
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import org.rut.util.algorithm.SortUtil; Mc\lzq8\ 1
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/** 6Qo6T][
* @author treeroot N*z<VZ
* @since 2006-2-2 "=RB
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* @version 1.0 p3Gj=G
*/ N[mOJa:
public class SelectionSort implements SortUtil.Sort { Ea3tF0{
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/* M0]fh5O
* (non-Javadoc) 11)~!in
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?Jma^ S
*/ mki=.l$O
public void sort(int[] data) { !O.B,
int temp; ?e ~* ,6
for (int i = 0; i < data.length; i++) {
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int lowIndex = i; A^m hPBT_
for (int j = data.length - 1; j > i; j--) { 0(..]\p^d
if (data[j] < data[lowIndex]) { .Kv@p jOr
lowIndex = j; O}%=c\Pb
} <Q8bn?Z
} _}\&;
SortUtil.swap(data,i,lowIndex);
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Shell排序: rXaL1`t*
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package org.rut.util.algorithm.support; Kzmgy14o
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import org.rut.util.algorithm.SortUtil; "y`?KY$[N
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/** %Wc-.ER
* @author treeroot EXzY4D ^
* @since 2006-2-2 j^k{~]+_^]
* @version 1.0 LQS*/s0
*/ mEqV&M1;7l
public class ShellSort implements SortUtil.Sort{ dxd}:L~z
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/* (non-Javadoc) Oe=,-\&_
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A/.cNen
*/ j9,X.?Xvx
public void sort(int[] data) { 6v1j*'
for(int i=data.length/2;i>2;i/=2){ FX'W%_f,
for(int j=0;j insertSort(data,j,i); vD*KJ3(c
} [;b9'7j'
} H4pjtVBr
insertSort(data,0,1); 9#agI|d~
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/** 7,jqA"9
* @param data b_LzG_n!
* @param j d`xqs,0f
* @param i 65}:2l2<
*/ Z,2uN!6
private void insertSort(int[] data, int start, int inc) { (thzWr6;
int temp; `?>OY&(
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); hIw*dob
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快速排序: {Cd*y6lI
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package org.rut.util.algorithm.support; J|>P,x#G
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import org.rut.util.algorithm.SortUtil; FkS{Z s
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/** fGxa~Unx
* @author treeroot t]m#k%)
* @since 2006-2-2 \0:l9;^4
* @version 1.0 F
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*/ 'J\%JAR@
public class QuickSort implements SortUtil.Sort{ @B[V'|
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/* (non-Javadoc) lyT~>.?{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ND`~|6yb
*/ RS93_F8
public void sort(int[] data) { "'8$hV65.p
quickSort(data,0,data.length-1); vbWX`skU
} U@*z#T#"m
private void quickSort(int[] data,int i,int j){ Ufk7%`
int pivotIndex=(i+j)/2; *s/F4?*
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SortUtil.swap(data,pivotIndex,j); xo*a9H?@
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int k=partition(data,i-1,j,data[j]); J0x)m2
SortUtil.swap(data,k,j); Lh0<A%
if((k-i)>1) quickSort(data,i,k-1); 5=$D~>-#
if((j-k)>1) quickSort(data,k+1,j); /f2*J
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/** p'R}z|d)
* @param data 6Y=$7%z
* @param i r+U-l#Q
* @param j c~Ha68
* @return X-%*`XG'
*/ 'Kq%tM26!
private int partition(int[] data, int l, int r,int pivot) { ?>w%Lg{L}
do{ tV T(!&(
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); "{&!fD~w
SortUtil.swap(data,l,r); ~+1t17
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while(l SortUtil.swap(data,l,r); Y`_6Ny="
return l; -PX {W)Aw
} EBn7waBS
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改进后的快速排序: d6Z;\f7[
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package org.rut.util.algorithm.support; VfQSfNsi
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import org.rut.util.algorithm.SortUtil; uh GL1{
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/** f6z[k_lLN
* @author treeroot O/FQ'o1F
* @since 2006-2-2 KI#hII[Q.
* @version 1.0 K/08F|]a
*/ Xf.SJ8G
public class ImprovedQuickSort implements SortUtil.Sort { Z*oGVr
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private static int MAX_STACK_SIZE=4096; \Q
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private static int THRESHOLD=10; 2AdV=n6Z
/* (non-Javadoc) ,H|V\\
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Iz ,C!c
*/ \oaO7w,:"
public void sort(int[] data) { p{88v3b6
int[] stack=new int[MAX_STACK_SIZE]; }3QEclZr
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int top=-1; jPFA\$To
int pivot; U/TF,JUI
int pivotIndex,l,r; UGAP$_j
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stack[++top]=0; m. XLpD
stack[++top]=data.length-1; Xp%JPI {
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while(top>0){ j]jwQRe
int j=stack[top--]; TT>;!nb
int i=stack[top--]; j{nL33T%
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