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。 )M__
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插入排序: J'N!Omz
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package org.rut.util.algorithm.support; CHV*vU<N
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import org.rut.util.algorithm.SortUtil; R+&jD;U{
/** lNQcYv
* @author treeroot S"Zp D.XX
* @since 2006-2-2 V+I|1{@i0
* @version 1.0 *N{emwIq
*/ :n /@z4#
public class InsertSort implements SortUtil.Sort{ YZ%Hu)
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/* (non-Javadoc) P(t[
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D@!=d@V.
*/ kWdi595
public void sort(int[] data) { NJNJjdD>
int temp; 7O,U?p
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); JPGzrEaZ
} Q>n|^y6
} Qx [t/~
} %;.;>Y(-
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} r2k2%nI-J
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冒泡排序: {J^lX/D
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package org.rut.util.algorithm.support; WJ_IuX51'
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import org.rut.util.algorithm.SortUtil; JGuN:c$
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/** _1U1(^)
* @author treeroot Offu9`DiZ
* @since 2006-2-2 n_'s=] ~
* @version 1.0 tO0!5#-VR
*/ f]`vRvbe
public class BubbleSort implements SortUtil.Sort{ P3oI2\)*i
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/* (non-Javadoc) H/Llj.-jg
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) r3>i+i42
*/ j\m_o% 4
public void sort(int[] data) { QR>gt;
int temp; e[8LmuIZ
for(int i=0;i for(int j=data.length-1;j>i;j--){ zL\OB?)5J
if(data[j] SortUtil.swap(data,j,j-1); clk[ /'1
} /c,(8{(O
} 8cA~R-
} hXA6D)
} S%Us5`sd
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} gH G
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选择排序: aJcf`<p
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package org.rut.util.algorithm.support; 0pbtH8~
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import org.rut.util.algorithm.SortUtil; :hM/f
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/**
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* @author treeroot HcqfB NM
* @since 2006-2-2 6qp%$>$Vt;
* @version 1.0 _vZ"4L+Iw+
*/ Hbpqyl%O>
public class SelectionSort implements SortUtil.Sort { C?2'+K
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/* *guoWPA|Ij
* (non-Javadoc) :duo#w"K
* B`
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) KhMSL
*/ PnoPbk[<
public void sort(int[] data) { nH<eR)0
int temp; 8)4P Ll
for (int i = 0; i < data.length; i++) { 3Oi
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int lowIndex = i; 9[^gAR
for (int j = data.length - 1; j > i; j--) { U\R}`l
if (data[j] < data[lowIndex]) { pbU!dOU~e
lowIndex = j; [AW"
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} <^lRUw
} *;fw%PW
SortUtil.swap(data,i,lowIndex); Q^#;WASi
} ^6_Cc
} 9F*+YG!
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} |0%+wB
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Shell排序: OdB?_.+$
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package org.rut.util.algorithm.support; G 8V,
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import org.rut.util.algorithm.SortUtil; qIAoA.
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/** t>[KVVg
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* @author treeroot rhb@FE)Mc
* @since 2006-2-2 7K5P8N
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* @version 1.0 q@xBJ[IM
*/ N+y&,N,
public class ShellSort implements SortUtil.Sort{ zBe8,, e
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/* (non-Javadoc) |K|h+fgG6*
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H(&4[%;MP
*/ cJL'$`gWf
public void sort(int[] data) { f`&dQ,;
for(int i=data.length/2;i>2;i/=2){ hc'-Dh
for(int j=0;j insertSort(data,j,i); x4/M}%h!;B
} #2EI\E&$
} PK4iuU`vh
insertSort(data,0,1); 6l4mS~/
} ^tCd L@$AS
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/** E_bO9nRHV
* @param data HO''&hz
* @param j R?p00
* @param i 8 P>#l. #
*/ ($~RoQ=0S
private void insertSort(int[] data, int start, int inc) { xSBc-u#< G
int temp; iIP8`!
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for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); [V)
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} '`Wwt.A
} 56Vb+0J'
} bk\yCt06y;
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} bcZf>:gVf
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快速排序: +(+Itmx2&
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package org.rut.util.algorithm.support; =lu/9
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import org.rut.util.algorithm.SortUtil; %:2+
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/** 1Zi,b
* @author treeroot lbuAE%
* @since 2006-2-2 l#}.^71+
* @version 1.0 <3j"&i]Tm*
*/ 3ux0Jr2yT
public class QuickSort implements SortUtil.Sort{ ?]4>rl}
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/* (non-Javadoc) 9Fr3pRIJ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f u9Cx
*/ {N#KkYH{"
public void sort(int[] data) { U.@*`Fg
quickSort(data,0,data.length-1); 8dlw-Q'S
} 7YAIA%8
private void quickSort(int[] data,int i,int j){ L=8+_0
int pivotIndex=(i+j)/2; "t0kAG
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SortUtil.swap(data,pivotIndex,j); DU=dLE6-P;
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int k=partition(data,i-1,j,data[j]); ~%2pp~1K
SortUtil.swap(data,k,j); VnT>K9&3
if((k-i)>1) quickSort(data,i,k-1); A Z{^o4<q
if((j-k)>1) quickSort(data,k+1,j); XB[<;*Iz
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} EutP\K_Y
/** /QEiMrz@6
* @param data g(|6~}|o+
* @param i 8+Td-\IMk
* @param j 7jJbo]&
* @return ehA;i.n
*/ Y+3!f#exm
private int partition(int[] data, int l, int r,int pivot) { @p|$/Z%R,
do{ ^Eo=W/
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); PG]%Bv57
SortUtil.swap(data,l,r); zY|klX})
} rP(eva
while(l SortUtil.swap(data,l,r); ]0r|_)s
return l; YKa0H%B(
} &ciN@nJ|$z
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} q-Qxbg[>e
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改进后的快速排序: 99EXo+g
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package org.rut.util.algorithm.support; J/6`oh?,Q
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import org.rut.util.algorithm.SortUtil; _xLHrT!y
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/** -ti{6:H8
* @author treeroot x^*1gv $o
* @since 2006-2-2 Xo {`]
* @version 1.0 dC<LDxlv
*/ 6q>+!kXh
public class ImprovedQuickSort implements SortUtil.Sort { c={Ft*N
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private static int MAX_STACK_SIZE=4096; 3u33a"nL8
private static int THRESHOLD=10; Xes|[ *Y!V
/* (non-Javadoc) T%R:NQf
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) X#w%>al
*/ =?X$Yaw*
public void sort(int[] data) { 6/ `.(fL1
int[] stack=new int[MAX_STACK_SIZE]; pA4*bO+
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int top=-1; eb|i3.
int pivot; ^S#t|rN
int pivotIndex,l,r; ir3VTqz
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stack[++top]=0; CCDDK L]N:
stack[++top]=data.length-1; !SsHAE|
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while(top>0){ k8]O65t|
int j=stack[top--]; Wn|&cG9
int i=stack[top--]; A4mSJ6K]
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pivotIndex=(i+j)/2; n+1y
pivot=data[pivotIndex]; Rb}KZ+o"Z
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SortUtil.swap(data,pivotIndex,j); EN!?:RV
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file://partition P6U%=xaC
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r=j; G&f7+e
do{ La[K!u\B
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); C+NF9N
SortUtil.swap(data,l,r); =sOo:s
} ;2giZ\
while(l SortUtil.swap(data,l,r); #Tp]^
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SortUtil.swap(data,l,j); 1MA@JA:T
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if((l-i)>THRESHOLD){ 5c-N0@\
stack[++top]=i; 1q.(69M
stack[++top]=l-1; F: 37MUQi
} >adV(V<
if((j-l)>THRESHOLD){ `^UK
stack[++top]=l+1; qS8B##x+=
stack[++top]=j; ,7d|O}B
} 7uI#L}y
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} 5@u~3jPd
file://new InsertSort().sort(data); tjv\)Nn'
insertSort(data); $(HjI
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} O%1/r*
/** yi!`V.
* @param data FE m=w2
*/ %(LvE}[RJ
private void insertSort(int[] data) { hRTMFgO
int temp; m s~8QL
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Ttv9"z
} S]2 {ZDP
} &