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。 z)Yb9y>2
插入排序: nP|ah~
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package org.rut.util.algorithm.support; v?n# C
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import org.rut.util.algorithm.SortUtil; p4kK"
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/** 7Q,<h8N\5
* @author treeroot R[TaP7n
* @since 2006-2-2 g4;|uK;
* @version 1.0 f lt'~fe
*/ 4ywtE}mp
public class InsertSort implements SortUtil.Sort{ dP#7ev]'
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/* (non-Javadoc) ad=7FhnIa3
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =`Ky N/
*/ =FdFLrx~l
public void sort(int[] data) { 17w{hK4o8O
int temp; 1&Ma`M('
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); UWdqcOr
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} iTF%}(
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冒泡排序: a
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package org.rut.util.algorithm.support; ^;?w<9Y
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import org.rut.util.algorithm.SortUtil; ETR7%0$r
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/** dkSd
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* @author treeroot )]Sf|@K]
* @since 2006-2-2 PTTUI
* @version 1.0 ]{I>HA5[
*/ y{XNB}E
public class BubbleSort implements SortUtil.Sort{ *$/Go8t4u
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/* (non-Javadoc) M3dUGM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZvK3Su)f1
*/ @(."[O:
public void sort(int[] data) { TT){15T;"
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for(int i=0;i for(int j=data.length-1;j>i;j--){ 1k"i"kRM
if(data[j] SortUtil.swap(data,j,j-1); @9k3}x K
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} pTJ_DH
} )5Cqyp~P
} >z,Y%A
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选择排序: n"R$b:
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package org.rut.util.algorithm.support; h,]lN'JG{
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import org.rut.util.algorithm.SortUtil; a(h@4 x
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/** +RK/u
* @author treeroot F(,SnSam
* @since 2006-2-2 jASK!3pY
* @version 1.0 `G>|g^6%i
*/ ~u?rjkSFoh
public class SelectionSort implements SortUtil.Sort { vv
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/* 77 ?TRC
* (non-Javadoc) sr~VvciIy
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z3w;W{2Q;V
*/ ;]rj Kc=
public void sort(int[] data) { c|4_nT
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int temp; [ .3Gb}B
for (int i = 0; i < data.length; i++) { (8em 5
int lowIndex = i; 8"u.GL.
for (int j = data.length - 1; j > i; j--) { ?w)A`G_
if (data[j] < data[lowIndex]) { p%OVl[^jp
lowIndex = j; $=C `V
} gUp9yV
} E,4*a5Fi
SortUtil.swap(data,i,lowIndex); ZV07;`I
} za8+=?
} S:c
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Shell排序: frWY8&W^H
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package org.rut.util.algorithm.support; zS?DXE
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import org.rut.util.algorithm.SortUtil; @*$"6!3s5
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/** gOaK7A
* @author treeroot ^brh\M,:@
* @since 2006-2-2 oK&G
* @version 1.0 XK(aH~7xme
*/ Rr\fw'
public class ShellSort implements SortUtil.Sort{ X)8Edw[?N3
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/* (non-Javadoc) \9}-5
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g#5t8w
*/ I;mc:@R<
public void sort(int[] data) { Ej`G(
for(int i=data.length/2;i>2;i/=2){ RLDu5
for(int j=0;j insertSort(data,j,i); t1aKq)?
} ay=f1<a
} #;'*W$Wk2
insertSort(data,0,1); ck8Qs08
} TG.\C8;vFh
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/** 57$/Dn
* @param data ;ZZmX]kz,M
* @param j
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* @param i QwI HEmdM
*/ "3?:,$*
private void insertSort(int[] data, int start, int inc) { k:1|Z+CJ
int temp; _%aT3C}k
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); H]Gj$P=k
} hud'@O"R+
} ,9.NMFn
} 0fR?zT?
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} BagV\\#v4
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快速排序: `P;uPQDzZ3
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package org.rut.util.algorithm.support; W1Om$S1
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import org.rut.util.algorithm.SortUtil; }i\_`~
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/** r / L
* @author treeroot l{_1`rC'
* @since 2006-2-2 &|Vzo@D(!
* @version 1.0 }z2K"eGt
*/ E^m2:J]G
public class QuickSort implements SortUtil.Sort{ (DTkK5/%
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/* (non-Javadoc) Ly6) ,[q~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _Tma1~Gq
*/ 0O?!fd n
public void sort(int[] data) { bj 0-72V
quickSort(data,0,data.length-1); f<@`{oP@
} $`/F5R!
private void quickSort(int[] data,int i,int j){ jt&rOPL7
int pivotIndex=(i+j)/2; 4eS(dPI0
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SortUtil.swap(data,pivotIndex,j); |C\XU5}
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int k=partition(data,i-1,j,data[j]); x]:B3_qR
SortUtil.swap(data,k,j); Oxh.&
if((k-i)>1) quickSort(data,i,k-1); -O[9{`i]
if((j-k)>1) quickSort(data,k+1,j); yrR,7vJ
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} /909ED+)>9
/** 74%Uojl"
* @param data 0 oHnam
* @param i 7p,!<X}%
* @param j s|C4Jy_
* @return 0bR})}a+Yg
*/ :FI4GR*?
private int partition(int[] data, int l, int r,int pivot) { XFvPc
do{ eX{Tyd{
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ixo?o]Xb`
SortUtil.swap(data,l,r); Qx[
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} C.{z+
while(l SortUtil.swap(data,l,r); n0=[N'Tw3
return l; >)iCKx
} |", /
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} Z_?r5M;
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改进后的快速排序: 1;y?!;FD
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package org.rut.util.algorithm.support; ?rv5Z^D'
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import org.rut.util.algorithm.SortUtil; ~ny4Ay$#
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/** HVcd< :g0
* @author treeroot uVV;"LVK~
* @since 2006-2-2 ]_P!+5]<
* @version 1.0 -$_h]x*
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*/ WiclG8l
public class ImprovedQuickSort implements SortUtil.Sort { 8{J{)gF
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private static int MAX_STACK_SIZE=4096; VtC1TZ3-7
private static int THRESHOLD=10; ;/.XAxkFL
/* (non-Javadoc) !l1ycQM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9\W }p\c
*/ a$'=a09
public void sort(int[] data) { Wq]Lb:&