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。 ulxy 4] h
插入排序: \_PD@A9
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package org.rut.util.algorithm.support; e?eX9yA7F
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import org.rut.util.algorithm.SortUtil; \z)` pno
/** ~h6aTN
* @author treeroot lO dwH"
* @since 2006-2-2 TH#5j.uUs
* @version 1.0 %<Kw
*/ D-4\AzIb
public class InsertSort implements SortUtil.Sort{ e8$OV4X
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/* (non-Javadoc) +hKH\]
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l?swW+x\
*/ O5 ?3nYHa
public void sort(int[] data) { !:w&eFC6
int temp; PR*qyELu
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); _4MT,kN
} :h60
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冒泡排序: fN{JLp
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package org.rut.util.algorithm.support; xyc`p[n&
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import org.rut.util.algorithm.SortUtil; ^=gzms
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/** i>n)T
* @author treeroot n8vteGQ
* @since 2006-2-2 p:q?8+W-r
* @version 1.0 $Hbd:1%i
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*/ VA0p1AD
public class BubbleSort implements SortUtil.Sort{ [^GXHE=
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/* (non-Javadoc) rytaC(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Af{K#R8!
*/ !$|h[ct
public void sort(int[] data) { o
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int temp; &[iunJv:eq
for(int i=0;i for(int j=data.length-1;j>i;j--){ 8ECBi(
if(data[j] SortUtil.swap(data,j,j-1); 8WvQ[cd
} v05B7^1@_
} 5/"&C-t
} A~7q=-
} 0-a[[hL?
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} zQhc
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选择排序: I&Y9
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package org.rut.util.algorithm.support; p^ojhrr
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import org.rut.util.algorithm.SortUtil; S((\KL,
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/** Da8{==
* @author treeroot ~*,e &I
* @since 2006-2-2 1#2B1&
* @version 1.0 M~k2Y$}R
*/ 4ZN&Yf`
public class SelectionSort implements SortUtil.Sort { H(k-jAO,
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/* r%DaBx!x8
* (non-Javadoc) cf
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )RE~=*?d
*/ o(_~
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public void sort(int[] data) { zP$Ef7bB
int temp; ,Xt!dT-
for (int i = 0; i < data.length; i++) { zBd)E21H
int lowIndex = i; FY6!)/P0I7
for (int j = data.length - 1; j > i; j--) { >s+TD4OfY
if (data[j] < data[lowIndex]) { 1}"PLq(
lowIndex = j; x%\m/_5w%
} 9?~K"+-SI
} s$ v<p(yl
SortUtil.swap(data,i,lowIndex); "P_PqM
} G)'(%rl
} ;$= GrR
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Shell排序: ^w*$qzESy
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package org.rut.util.algorithm.support; '5BM*4,:O
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import org.rut.util.algorithm.SortUtil; Skn2-8;10
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/** :n t\uwh
* @author treeroot g9$P J:
* @since 2006-2-2 hy?e?^
* @version 1.0 kbF+aS
*/ NDv_@V(D
public class ShellSort implements SortUtil.Sort{ )Ap0" ?q
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/* (non-Javadoc) GE0,d
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
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*/ A_vf3 *q
public void sort(int[] data) { NtnKS@Ht
for(int i=data.length/2;i>2;i/=2){ IhYTK%^96
for(int j=0;j insertSort(data,j,i); oA1d8*i^E
} 6%&RDrn
}
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insertSort(data,0,1); %ut7T!Jp
} Q|`sYm'.
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/** ,9:0T LLR
* @param data KASw3!.W
* @param j PN&;3z Z
* @param i jdF~0#vH
*/ ~>(
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private void insertSort(int[] data, int start, int inc) { 8aSH0dX
int temp; WO=,NQOw
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); i[wEH1jR
} ;.g <u
} F;&a=R!.
} H!+T2<F9R
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快速排序: h5.>};"@'
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package org.rut.util.algorithm.support; N))G/m3
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import org.rut.util.algorithm.SortUtil; aybfBC
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/** u0vq`5L
* @author treeroot MiX*PqNTM
* @since 2006-2-2 ct3^V M&/
* @version 1.0 =h{jF7
*/ oNfNe^/T
public class QuickSort implements SortUtil.Sort{ cG`R\$
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/* (non-Javadoc) GGY WvGE+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *A,h^
*/ nd 5w|83
public void sort(int[] data) { !AGjiP$
quickSort(data,0,data.length-1); E2D}F@<]
} h 'F\9t
private void quickSort(int[] data,int i,int j){ ny. YkN2
int pivotIndex=(i+j)/2; !VfP#B6.
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SortUtil.swap(data,pivotIndex,j); Yc*Ex-s
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int k=partition(data,i-1,j,data[j]); ?oc#$fcQ~
SortUtil.swap(data,k,j); t*&O*T+fgy
if((k-i)>1) quickSort(data,i,k-1); >**7ck
if((j-k)>1) quickSort(data,k+1,j); A+N%A]2
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} $ 4&
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/** U6pG
* @param data )ww#dJn
* @param i cTR@
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* @param j zoU-*Rs6
* @return 4l6+8/Y
*/ @AgV7#
private int partition(int[] data, int l, int r,int pivot) { 7:h8b/9
do{ QF7iU@%-
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); F^v <z)x
SortUtil.swap(data,l,r); Zu$30&U
} j;|rI`67~
while(l SortUtil.swap(data,l,r); f~LM-7!zf}
return l; 1P'R-I
} OC [ +t6
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改进后的快速排序: $
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package org.rut.util.algorithm.support; &4%j
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import org.rut.util.algorithm.SortUtil; 5Z`9L|3d
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/** w<3g1n7R
* @author treeroot vPV=K+1
* @since 2006-2-2 %Tn0r|K
* @version 1.0 ,pgpu !
*/ nI-^
public class ImprovedQuickSort implements SortUtil.Sort { ;JK!dzi}
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private static int MAX_STACK_SIZE=4096; UY_'F5X
private static int THRESHOLD=10; !1:364
/* (non-Javadoc) ~vVsxC$.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R9/(z\'}
*/ @"6dq;"
public void sort(int[] data) { hY?x14m$3
int[] stack=new int[MAX_STACK_SIZE]; o+H;ZGT5H
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int top=-1; "v"w ER?
int pivot; 483BrFV
int pivotIndex,l,r; \9*,[mvC
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stack[++top]=0; j&G*$/lTO6
stack[++top]=data.length-1; >l\?K8jL9
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while(top>0){ B/(]AWi+
int j=stack[top--]; M``I5r*cg
int i=stack[top--]; CywQ
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pivotIndex=(i+j)/2;
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pivot=data[pivotIndex]; DL ^}?Ve
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SortUtil.swap(data,pivotIndex,j); TZT1nj"n
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while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); | %Dh
SortUtil.swap(data,l,r); uqhNi!;
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while(l SortUtil.swap(data,l,r); wX3x.@!:
SortUtil.swap(data,l,j); \X=?+|
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if((l-i)>THRESHOLD){ "]%.%$
stack[++top]=i; 9tW=9<E
stack[++top]=l-1; Yy4?|wVl
} F 8\nAX
if((j-l)>THRESHOLD){ /$ 7_*4e
stack[++top]=l+1; nyZUf{:
stack[++top]=j; [jD.l;jF
} pZu2[
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} ,qj
file://new InsertSort().sort(data); !+?,y/*5(
insertSort(data); ,FvBZ.4c3=
} IH;+pN
/** AXV+8$ :R
* @param data : -@o3Syg
*/ ^K4#_H#"
private void insertSort(int[] data) { r@_`ob RW;
int temp; aj1o
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} F[Dhj,C"
} k!gft'iU
} KJ
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归并排序: {2`:7U~|
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package org.rut.util.algorithm.support; 4s?x 8oAy
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import org.rut.util.algorithm.SortUtil; O.n pi: a
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/** w l.#{@J]<
* @author treeroot DwXzmp[qWH
* @since 2006-2-2 (fc
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* @version 1.0 r-#23iT.~
*/ f)xHSF"
public class MergeSort implements SortUtil.Sort{ gDP\u<2!
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