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。 oS~;>]W
插入排序: nE56A#,Q,
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package org.rut.util.algorithm.support; "H]R\xp
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import org.rut.util.algorithm.SortUtil; ,hWuAu6.L
/** rYM@e
* @author treeroot }S;A%gYm
* @since 2006-2-2 w3&L 6|,
* @version 1.0 :m<#\!?
*/ |_hIl(6F5N
public class InsertSort implements SortUtil.Sort{ &YBZuq2?
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/* (non-Javadoc) `i!fg\qnK
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V ONC<wC
*/ V@nZ_.
public void sort(int[] data) { d(K}v\3!
int temp; DUwms"I,%
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); @p@b6iLpO
} MS]Q\g}U
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冒泡排序: fRHzY?n9;
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package org.rut.util.algorithm.support; 7~SnY\B|
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import org.rut.util.algorithm.SortUtil; T!i$nI&
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/** $}fY
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* @author treeroot \}!/z]u
* @since 2006-2-2 aMGyV"6(-6
* @version 1.0 F\jawoO9
*/ 0Bk-)z|V
public class BubbleSort implements SortUtil.Sort{ viJP6fh
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/* (non-Javadoc) S%e)br}
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1B@7#ozWA?
*/ ?I u=os>*
public void sort(int[] data) { Pj_*,L`mZ
int temp; {q^UWv?1
for(int i=0;i for(int j=data.length-1;j>i;j--){ 4(,M&NC
if(data[j] SortUtil.swap(data,j,j-1); &A=c[pc
} P&yB(M-z
} 'hFL`F*
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} /!N=@z)
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选择排序: Ko)f:=Qo
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package org.rut.util.algorithm.support; bn7g!2
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import org.rut.util.algorithm.SortUtil; .@ZrmO
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/** Mcq!QaO}&
* @author treeroot < FY%QB)h
* @since 2006-2-2 [,{Nu EI
* @version 1.0 ";/ogFi
*/ 8A}<-?>
public class SelectionSort implements SortUtil.Sort { 2qQ;U?:q
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/* 13*S<\
* (non-Javadoc) D]5j?X'
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?6HnN0A)
*/ >x6)AH.
public void sort(int[] data) { 5tk7H2K^<
int temp; *!j!o%MB
for (int i = 0; i < data.length; i++) { J/3$I
int lowIndex = i; 6J">@+
for (int j = data.length - 1; j > i; j--) { F%.UpV,
if (data[j] < data[lowIndex]) { ~=I:go
lowIndex = j; y0p\Gu;3j
} a!f71k
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} ^Pah\p4bj
SortUtil.swap(data,i,lowIndex); +~= j3U
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} LXZI|K[}k
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Shell排序: qz.l
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package org.rut.util.algorithm.support; }0f~hL24
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import org.rut.util.algorithm.SortUtil; 3w"_Onwk
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/** t/3HX]B_
* @author treeroot $sUn'62JlU
* @since 2006-2-2 ,gM:s}l!dJ
* @version 1.0 YQWq*o^:
*/ ,6o tm
public class ShellSort implements SortUtil.Sort{ @sW!g;\T
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/* (non-Javadoc) <
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?b"'w
*/ A-J#$B
public void sort(int[] data) { -%Rbd0gVH\
for(int i=data.length/2;i>2;i/=2){ awjAv8tPO!
for(int j=0;j insertSort(data,j,i);
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} 4Xww(5?3
} `m#i|8
insertSort(data,0,1); m&z(2yb1
} '=eVem=
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/** REh\WgV!u
* @param data URt+MTU[
* @param j /8<c~
* @param i S]Di1E^r;_
*/ `C$QR
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private void insertSort(int[] data, int start, int inc) { YK5(o KFN
int temp; [=tIgMmz
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ~|N,{GaL
} `U|zNizO
} 0cVxP)J+
} 9MQjSNYzo
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}
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快速排序: ==oJhB
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package org.rut.util.algorithm.support; cd=K=P}p
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import org.rut.util.algorithm.SortUtil; Pc7p2
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/** mNEh\4ai
* @author treeroot O%6D2d
* @since 2006-2-2 TP~1-(M)}
* @version 1.0 xE$lx:C"FU
*/ K-K>'T9F}
public class QuickSort implements SortUtil.Sort{ g \ou+M#
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/* (non-Javadoc) mahNQ5 W*)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =+I-9=
*/ <M}O&?N
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public void sort(int[] data) { @ &Od1X
quickSort(data,0,data.length-1); 2@@evQ
} ZLdIEBi=
private void quickSort(int[] data,int i,int j){ uu"hu||0_
int pivotIndex=(i+j)/2; k@h0 }%
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SortUtil.swap(data,pivotIndex,j); 5uOz #hN
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int k=partition(data,i-1,j,data[j]); O{Mn\M6
SortUtil.swap(data,k,j); :z *jl'L
if((k-i)>1) quickSort(data,i,k-1); F2ISg'
if((j-k)>1) quickSort(data,k+1,j); z#rp8-HUDS
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} 2-Wy@\
/** }' sW[?ik
* @param data A zp!;+
* @param i ULgp]IS
* @param j {"2CI^!/U.
* @return )[r=(6?n
*/ ~jmI`X/
private int partition(int[] data, int l, int r,int pivot) { ckv8QAm
do{ [tElt4uG
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ^]~!:Ej0
SortUtil.swap(data,l,r); x8~*+ j
} k g Rys
while(l SortUtil.swap(data,l,r); i[ws%GfEv
return l; Zm7,O8
} Cud!JpL
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} m6]6!_
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改进后的快速排序: '5~l{3Lw
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package org.rut.util.algorithm.support; '
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import org.rut.util.algorithm.SortUtil; e=eip?p
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