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。 CuaVb1r
插入排序: lp.ldajN
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package org.rut.util.algorithm.support; SL Ws*aq
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import org.rut.util.algorithm.SortUtil; qk%;on&`
/** C8J[Up
* @author treeroot {c6=<Kv
* @since 2006-2-2 F|'>NL-=
* @version 1.0 $njUXSQ;
*/ S3q&rqarC%
public class InsertSort implements SortUtil.Sort{ 4`4kfiS$
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/* (non-Javadoc) W>${zVu
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %^?fMeI|Y
*/ ui<N[
public void sort(int[] data) { LK{*sHi$
int temp; sQYkQ81
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :tz#v`3o
} *z5.vtfu!
} 3lf=b~Zi)
} n<Z({\9&H
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} :vmH]{R
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冒泡排序: 8o3E0k1
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package org.rut.util.algorithm.support; _~'=C#XI)
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import org.rut.util.algorithm.SortUtil; _zR+i]9
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/** (of#(I[m7
* @author treeroot qrb[-|ie&
* @since 2006-2-2 !]"@kl%
* @version 1.0 )MtF23k)g
*/ w^\52
public class BubbleSort implements SortUtil.Sort{ T`9lV2x*P
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/* (non-Javadoc) @KXV%a'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G4Q[Th
*/ &agWaf1%a
public void sort(int[] data) { `
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int temp; [zH:1Zhl&
for(int i=0;i for(int j=data.length-1;j>i;j--){
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if(data[j] SortUtil.swap(data,j,j-1); 3OrczJ=[UF
} aHV;N#Lx3
} G0CW}e@)
} +>8'mf
} xipU8'ac/
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} 6gL#C&
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选择排序: 5Y.)("1f}f
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package org.rut.util.algorithm.support; ?fQ'^agq
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import org.rut.util.algorithm.SortUtil; BnX0G1|#
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/** TYy?KG>:'
* @author treeroot )cW#Rwu_A4
* @since 2006-2-2 gt\E`HB8E
* @version 1.0 3$9s\<j
*/ yks__ylrl(
public class SelectionSort implements SortUtil.Sort { q}b
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/* y8d]9sX{
* (non-Javadoc) K='z G*$l
* 5-FQMXgThc
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2Sle#nw3
*/ sZ3KT&
public void sort(int[] data) { zUt'QH7E.
int temp; EB0TTJR?#
for (int i = 0; i < data.length; i++) { AgWa{.`f:
int lowIndex = i; _F4Ii-6
for (int j = data.length - 1; j > i; j--) { +=>,Pto<
if (data[j] < data[lowIndex]) { M=8.Bp|Ye
lowIndex = j; ZFiee|,q
} e+=y*OmQ
} ,L|%"K]yM
SortUtil.swap(data,i,lowIndex); f- K+]aZ)
} @#l `iK
} ^\hG"5#
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} F6LH $C
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Shell排序: lz/8
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package org.rut.util.algorithm.support; aEBu *`-j
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import org.rut.util.algorithm.SortUtil; 9#23FK
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/** 48J@CvU
* @author treeroot >>QY'1Eu
* @since 2006-2-2 T tfo^ksw
* @version 1.0 @T@<_ ?)
*/ v>6"j1Z
public class ShellSort implements SortUtil.Sort{ ~Sdb_EZ
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/* (non-Javadoc) v|Pv 03%?7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bYcV$KJk
*/ ]N/=Dd+|
public void sort(int[] data) { -5)H<dAQZ
for(int i=data.length/2;i>2;i/=2){ %{7|1>8
for(int j=0;j insertSort(data,j,i); PoHg,n]
} :>rkG?NfL
} hM_lsc
insertSort(data,0,1); 0$(WlP|
} 'HO$C,1]
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/** kc2PoJ
* @param data #?RU;1)Cw
* @param j 2\R'@L*
* @param i _1!7V3|^
*/ ;p.v]0]is
private void insertSort(int[] data, int start, int inc) { bc*X/).
int temp; EHSlK5bD,
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); mJ<=n?{Z
} :)8VdWg
} _aq8@E~
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} ^Xz@`_I
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快速排序: x" 7H5<
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package org.rut.util.algorithm.support; ;Y)w@bNt@
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import org.rut.util.algorithm.SortUtil; +[Dx?XM
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/** &C:IX\
* @author treeroot QfmJn((
* @since 2006-2-2 ZVW'>M7.
* @version 1.0 ?K1/ <PE+
*/ "H2EL}3/]
public class QuickSort implements SortUtil.Sort{ WEAT01
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/* (non-Javadoc) e*sfPHt
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HsxVZ.dS
*/ =WyDp97@+
public void sort(int[] data) { %Wg'i!?cB
quickSort(data,0,data.length-1); H!c@klD
} u+dLaVlLJ
private void quickSort(int[] data,int i,int j){ } FE>|1
int pivotIndex=(i+j)/2; wDw[RW3
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SortUtil.swap(data,pivotIndex,j); OwuE~K7b{
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int k=partition(data,i-1,j,data[j]); FOb0uj=(v
SortUtil.swap(data,k,j); c7 ?_46J
if((k-i)>1) quickSort(data,i,k-1); O8^A5,2@3>
if((j-k)>1) quickSort(data,k+1,j); ,yC-+VL
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} N>Xo_-QCY
/** `34zkPB??
* @param data j
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* @param i 4"GR]
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* @param j W,D4.w$@'
* @return Ig$(3p
*/ {baq+
private int partition(int[] data, int l, int r,int pivot) { yZAS# ko}}
do{ FW.7'7G@n
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); z Eq GD2"
SortUtil.swap(data,l,r); 57aXQ8u{
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while(l SortUtil.swap(data,l,r); m)8BgCy
return l; 9y6-/H
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} ,y1PbA0m
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改进后的快速排序: md=TjMaY
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package org.rut.util.algorithm.support; "Hya6k>j
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import org.rut.util.algorithm.SortUtil; o\BOL3H
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/** A_V]yP
* @author treeroot ]E7F/O/.
* @since 2006-2-2 2uzW+D6J
* @version 1.0 j~"Q3P;V
*/ 'SO %)B
public class ImprovedQuickSort implements SortUtil.Sort { :8I9\eet3
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private static int MAX_STACK_SIZE=4096; Ha(c'\T(\
private static int THRESHOLD=10; dW_KU}
/* (non-Javadoc) 09|K>UC)v
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) imo$-}A
*/ _uWpJhCT
public void sort(int[] data) { Q`~jw>x
int[] stack=new int[MAX_STACK_SIZE]; '>NCMB{*
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int top=-1;
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int pivot; u6?Q3
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int pivotIndex,l,r; XYjV.j\
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stack[++top]=0; \4&fxe
stack[++top]=data.length-1; u&^b~#T
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while(top>0){ {mm)ay|M
int j=stack[top--]; Bz^jw>1b
int i=stack[top--]; C'G/AU
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pivotIndex=(i+j)/2; 63^O|y\W8
pivot=data[pivotIndex]; VQ"hUX8
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SortUtil.swap(data,pivotIndex,j); .@2m07*1
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file://partition P !AEf#1
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r=j; d<% z
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do{ @u.58H& }R
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); WeJl4wF
SortUtil.swap(data,l,r); U GD2
} >d*iD
while(l SortUtil.swap(data,l,r); <S\jpB
SortUtil.swap(data,l,j); 8N!b>??
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if((l-i)>THRESHOLD){ Q8C_9r/:N>
stack[++top]=i; WM
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stack[++top]=l-1; C`K?7v3$m
} -5
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if((j-l)>THRESHOLD){ ccNd'2P
stack[++top]=l+1; |)nZ^Cc
stack[++top]=j; p
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} -1
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} Y}x>t* I
file://new InsertSort().sort(data); 4^:\0UF
insertSort(data); 4Z1ST;
} :X0k]p
/** %WSo b@f8
* @param data V\t.3vT
*/ BD68$y
private void insertSort(int[] data) { 4 kn|^
int temp; (g EBOol
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); N<|@ymi
} b+,';bW
} Mxe}B'
} N+++4;
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} YT8vP~
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归并排序: .|hf\1_J
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package org.rut.util.algorithm.support; ZNJ@F<