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。 l]e7
插入排序: vr>Rd{dm
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package org.rut.util.algorithm.support; .Wci@5:3
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import org.rut.util.algorithm.SortUtil; 1Yv#4t
/** o{QPW
* @author treeroot k{$Mlt?&-
* @since 2006-2-2 {5:V
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* @version 1.0 9o5_QnGE
*/ N`rOlEk
public class InsertSort implements SortUtil.Sort{ D8_-Dvp7H
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/* (non-Javadoc) d `+cNKf
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mj@ 0F
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*/ _52BIrAO2
public void sort(int[] data) { %g&i.2v
int temp; 1G+?/w
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); B\!.o=<h
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} 7^:0?Q
} \=/^H
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} XmoS$/#"
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冒泡排序: _7zER6#}
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package org.rut.util.algorithm.support; V qW(S1w
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import org.rut.util.algorithm.SortUtil; q
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/** 8^N"D7{mO
* @author treeroot Z*|qbu)
* @since 2006-2-2 o5FBqt
* @version 1.0 uNYHEs6%T$
*/ "syf@[tz7
public class BubbleSort implements SortUtil.Sort{ n300kpv
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/* (non-Javadoc) <vV?VV([
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {
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*/ \TrhJ
public void sort(int[] data) { n'JwT!
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int temp; NY
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for(int i=0;i for(int j=data.length-1;j>i;j--){ J,E'F!{
if(data[j] SortUtil.swap(data,j,j-1); f&Bu_r
} s3G3_&
} <c6C+OWT,
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} zrt8ze=Su
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选择排序: -)aBS3
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package org.rut.util.algorithm.support; @W^A%6"j
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import org.rut.util.algorithm.SortUtil; *"Ipu"G5?
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/** HQ+:0"B
* @author treeroot oM$EQd`7
* @since 2006-2-2 ('xu2 ;<
* @version 1.0 %9=^#e+pE
*/ eGblQGRS
public class SelectionSort implements SortUtil.Sort { #uT-_L}sw
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/* R)#D{/#FW
* (non-Javadoc) 2|#3rF
* UPPDs "
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fdN-Zq@'
*/ oG5JJpLT
public void sort(int[] data) { yKa}U!$
int temp; K,^{|5'3q
for (int i = 0; i < data.length; i++) { 7k:}9M~
int lowIndex = i; S~}?6/G.
for (int j = data.length - 1; j > i; j--) { Y'Jb@l`$-
if (data[j] < data[lowIndex]) { q'M-a tE.
lowIndex = j; /H,!7!6>?
} X{ZBS^M
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SortUtil.swap(data,i,lowIndex); aIZ@5w"7
} M>0=A
} cu|#AW
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} uyxU>yHV<g
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Shell排序: "a6
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package org.rut.util.algorithm.support; +vLuzM-
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import org.rut.util.algorithm.SortUtil; l8%x(N4
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/** OcMd'fwO
* @author treeroot QO7> XHn
* @since 2006-2-2 !Il>,q&F
* @version 1.0 <2ffcBv
*/ 7~eo^/PbS
public class ShellSort implements SortUtil.Sort{ m^O:k"+ !
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/* (non-Javadoc) wQp,RpM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :4<+)r26
*/ RV^2[Gdi
public void sort(int[] data) { >;HbDp
for(int i=data.length/2;i>2;i/=2){ Cr4shdN34
for(int j=0;j insertSort(data,j,i); HHCsWe-
} {j,bV6X
} omECes)
insertSort(data,0,1); I4
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} Z,,Da|edH
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/** v.cB3/$z
* @param data y*\ M7}](
* @param j EFf<|v
* @param i &EXql']
*/ {+z+6i
private void insertSort(int[] data, int start, int inc) { =a?l@dI]
int temp; 1b;Aru~l
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); *0l^/jqn:
} vV#Jl)
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快速排序: mmTc.xh
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package org.rut.util.algorithm.support; 9:fVHynr
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import org.rut.util.algorithm.SortUtil; g}$]K!F
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/** }3lM+]pf
* @author treeroot -:a
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* @since 2006-2-2 \P}~ICZA
* @version 1.0 26o68U8&y
*/ l
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public class QuickSort implements SortUtil.Sort{ WSi Utf|g
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/* (non-Javadoc) &Zd{ElM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jf*M}Q1jHE
*/ T"in
public void sort(int[] data) { 2Ev~[Hb.
quickSort(data,0,data.length-1); rbO9NRg>
} {\;CGoN|
private void quickSort(int[] data,int i,int j){ u{ JAC!
int pivotIndex=(i+j)/2; SL pd~ZC?
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SortUtil.swap(data,pivotIndex,j); k
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int k=partition(data,i-1,j,data[j]); {]Nvq9?
SortUtil.swap(data,k,j); 4@/[aFH
if((k-i)>1) quickSort(data,i,k-1); 2o6KVQ
if((j-k)>1) quickSort(data,k+1,j); :f 1*-y
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} k~`pV/6
/** (/v(.t
* @param data c:>&Bg&,6T
* @param i ;pBSGr9
* @param j #J)sz,)(
* @return <^
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*/ f lVQG@
private int partition(int[] data, int l, int r,int pivot) { deQ0)A 4g
do{ GBHv| GO
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); |@sUN:G4k
SortUtil.swap(data,l,r); h-<('w:A
} TlQ#0_as[
while(l SortUtil.swap(data,l,r); 7xMvf<1P
return l; VI74{='=
} r[q-O&2&
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} ht(RX
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改进后的快速排序: x5.HdKV
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package org.rut.util.algorithm.support; q}*(rR9/Br
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import org.rut.util.algorithm.SortUtil; A Ns.`S
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/** r.lH@}i%n
* @author treeroot $k,Z)2
* @since 2006-2-2 x{*g^f
* @version 1.0 dPc*!xrq
*/ _<6
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public class ImprovedQuickSort implements SortUtil.Sort { %\6|fKB4<
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private static int MAX_STACK_SIZE=4096; 07[A&