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。 ]to"X7/
插入排序: ZwLD7j*)
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package org.rut.util.algorithm.support; Ufz& 2
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import org.rut.util.algorithm.SortUtil; pr|P#mc"J
/** S^GB\uJ
* @author treeroot 0x}8}
* @since 2006-2-2 FTy`#*7Ul
* @version 1.0 x9#>0
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*/ ]U]22I'+$2
public class InsertSort implements SortUtil.Sort{ C*}TY)8
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/* (non-Javadoc) ^KU:5Bn
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i>9/vwe
*/ >-Qg4%m
public void sort(int[] data) { o|7]8K=
int temp; rAdYBr=0
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); }LH>0v_<Y
} web=AQ5I4
} jb' hqz
} p%A(5DE
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冒泡排序: sW~Z?PFP
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package org.rut.util.algorithm.support; `A.!<bO)]
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import org.rut.util.algorithm.SortUtil; u"K-mr#$[o
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/** J?XEF@?'G
* @author treeroot t6;Ln().Hw
* @since 2006-2-2 `x"0
* @version 1.0 zaX!f~;"
*/ A#W%ud4
public class BubbleSort implements SortUtil.Sort{ /;M0tP
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/* (non-Javadoc) H( `^1
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) //G5lW/*
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public void sort(int[] data) { -{>Nrx|
int temp; [=Wn7cr
for(int i=0;i for(int j=data.length-1;j>i;j--){ 5|ih>? C/(
if(data[j] SortUtil.swap(data,j,j-1); (Al.hEs'
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}
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选择排序: $;%-<*Co
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package org.rut.util.algorithm.support; "Hmo`E B0
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import org.rut.util.algorithm.SortUtil; >JFAE5tj&2
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/** tvptawA.
* @author treeroot }%EQ
* @since 2006-2-2 93%U;0w[Nw
* @version 1.0
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*/ \xk`o5/{
public class SelectionSort implements SortUtil.Sort { dL<okw
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/* ZD1UMB0$4
* (non-Javadoc) " *xQN "F
* /sENoQR
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wobTT1!|
*/ 9rX[z :
public void sort(int[] data) { +/q%29-k
int temp; od|w)?16
for (int i = 0; i < data.length; i++) { TL+a_]3@
int lowIndex = i; EI2V<v
for (int j = data.length - 1; j > i; j--) { n{pS+u z
if (data[j] < data[lowIndex]) { ([s}bD.9
lowIndex = j; F]3iL^v
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} Z>Nr"7k
SortUtil.swap(data,i,lowIndex); De[!^/f;T
} ,,oiL
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} (F_Wys=6
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Shell排序: 6q?C"\_
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package org.rut.util.algorithm.support; |_aE~_
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import org.rut.util.algorithm.SortUtil; DY?`Y%"
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/** I ms?^`N
* @author treeroot J0w[vrs&]
* @since 2006-2-2 uk_?2?>-5
* @version 1.0 ,;C92XY
*/ a3
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public class ShellSort implements SortUtil.Sort{ E0}`+x
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/* (non-Javadoc) =-{+y(<"r
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GAbX.9[V
*/ v')Fq[H
public void sort(int[] data) { }4Lv-9s,
for(int i=data.length/2;i>2;i/=2){ $k*E^~qT
for(int j=0;j insertSort(data,j,i); [g/Hf(&
} '=@O]7o~
} {) 4D1
insertSort(data,0,1); A[v]^pv'
} lRnst-inlI
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/** QvK/31*QG
* @param data V{;Mh
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* @param j |~k=:sSz{
* @param i BBnbXhxZ
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private void insertSort(int[] data, int start, int inc) { qX`?4"4
int temp; 4p&qH igG
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); }u5;YNmXxF
} #\iQ`Q<B
} u&".kk
} |vA3+kG
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快速排序: nX<!n\J T
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package org.rut.util.algorithm.support; Lie\3W
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import org.rut.util.algorithm.SortUtil; 25*/]iu
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/** cC1nC76[
* @author treeroot 8$-Wz:X&
* @since 2006-2-2 MOP
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* @version 1.0 e2UbeP
*/ PX52a[wNDH
public class QuickSort implements SortUtil.Sort{ "EF:+gi#"
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/* (non-Javadoc) wx
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^o,Hu#
*/ eI; %/6#
public void sort(int[] data) { ;2kiEATQ
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quickSort(data,0,data.length-1); `,Q
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private void quickSort(int[] data,int i,int j){ o\1"ux;b
int pivotIndex=(i+j)/2; `Z>4}<~+
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SortUtil.swap(data,pivotIndex,j); .
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int k=partition(data,i-1,j,data[j]); ' ~ lC85
SortUtil.swap(data,k,j); YN9ug3O+
if((k-i)>1) quickSort(data,i,k-1); {-J/
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if((j-k)>1) quickSort(data,k+1,j); Wk$[;>NU3
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} KnbT2
/** _;W}_p}q{
* @param data b\"JXfw
* @param i 2sjV*\Udf
* @param j 'y}l9alF
* @return -o6K_R}R
*/ tn+i5Eso
private int partition(int[] data, int l, int r,int pivot) { oat*ORL
do{ 'g^;_=^G
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 0wB ?U~
SortUtil.swap(data,l,r); BQ,]]}e43z
} -lRXH7|X
while(l SortUtil.swap(data,l,r); =B4mi.;@i
return l; Xl;u
} $TtCVR
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} x&+/da-E/5
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改进后的快速排序: iW+ZI6@
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package org.rut.util.algorithm.support; POfvs]
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import org.rut.util.algorithm.SortUtil; X_Is#&6;
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/** C]K@SN$
* @author treeroot 2TmQaDu%b
* @since 2006-2-2 )}9Ef"v|
* @version 1.0 ^,
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*/ L9Z:>i?
public class ImprovedQuickSort implements SortUtil.Sort { XWo:~\
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private static int MAX_STACK_SIZE=4096; LtJ$ZE^GB
private static int THRESHOLD=10; `]_#_
/* (non-Javadoc) VT?JTW
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tmDI2Z%7
*/ ]L^X}[SH
public void sort(int[] data) { l131^48U
int[] stack=new int[MAX_STACK_SIZE]; 5Lo{\7%
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int top=-1; mNc(
int pivot; rg"W1m[k
int pivotIndex,l,r; ",(-AU!a)h
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stack[++top]=0; :-xp'_\L
stack[++top]=data.length-1; hdQ[=PH)
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while(top>0){ 5Z]`n
int j=stack[top--]; d2'9C6t
int i=stack[top--]; q62TYg}
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pivotIndex=(i+j)/2;
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pivot=data[pivotIndex]; GQ[:vX`
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SortUtil.swap(data,pivotIndex,j); 25XD fi75
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do{ id\0yRBt
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 5O#CdN-S
SortUtil.swap(data,l,r); 2.p7fu
} =Jg5J5
while(l SortUtil.swap(data,l,r); 1>c`c]s3
SortUtil.swap(data,l,j); }at8b ^
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if((l-i)>THRESHOLD){ Vx;f/CH3!
stack[++top]=i; Bbz#$M!:
stack[++top]=l-1; .!\y<9
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if((j-l)>THRESHOLD){ _FeLSk.
stack[++top]=l+1;
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stack[++top]=j; oil s;*q
} ~j^HDHY@
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} [( BA:x1
file://new InsertSort().sort(data); X4!`
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insertSort(data); F6dm_Oq&
} ~QJD.'z
/** !sfOde)$
* @param data 8E H#IiP
*/ :aV(i.LW
private void insertSort(int[] data) { O _yJR
int temp; 9IIQon
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} @2v L'6
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} J Xo_l
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归并排序: Qf6]qJa|
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package org.rut.util.algorithm.support; x|<rt966A
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import org.rut.util.algorithm.SortUtil; tQ< ou,
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/** BEPeK
* @author treeroot ,@tYD(Z
* @since 2006-2-2 A7>0Pn%D3
* @version 1.0 ~P
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*/ K||9m+
public class MergeSort implements SortUtil.Sort{ ^&am