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。 5vLA)Al3
插入排序: r7^v@
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package org.rut.util.algorithm.support; 4K 8 (H9(
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import org.rut.util.algorithm.SortUtil; ]^Xj!01~
/** =MvB9gx@r
* @author treeroot "xnULQK
* @since 2006-2-2 2XEE/]^
* @version 1.0 li{!Jp5]1b
*/ C{+JrHV%h
public class InsertSort implements SortUtil.Sort{ j6j4M,UI43
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/* (non-Javadoc) `2]TPaWGh
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /}
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*/ @>8{J6%\
public void sort(int[] data) { ou{V/?rb
int temp; :,
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for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); T^{=cx9x9
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冒泡排序: 7u
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package org.rut.util.algorithm.support; C XNYWx
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import org.rut.util.algorithm.SortUtil; Z{/GT7 /
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/** p/G9P +?
* @author treeroot 5m;BL+>YE
* @since 2006-2-2 KUpj.[5qo
* @version 1.0 g9=_^^Tg
*/ L$rr:^J
public class BubbleSort implements SortUtil.Sort{ RS@[ +! :t
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/* (non-Javadoc) F)Z9Qlo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u \<APn
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public void sort(int[] data) { "d/uyS$6
int temp; y7R=zkd
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for(int i=0;i for(int j=data.length-1;j>i;j--){ <
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if(data[j] SortUtil.swap(data,j,j-1); '4,IGxIq
} -s1.v$g
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} )."dqq^ q
}
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选择排序: '=eVem=
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package org.rut.util.algorithm.support; REh\WgV!u
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import org.rut.util.algorithm.SortUtil; /8<c~
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/** `C$QR
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* @author treeroot YK5(o KFN
* @since 2006-2-2 [=tIgMmz
* @version 1.0 ~|N,{GaL
*/ Rg+#(y
public class SelectionSort implements SortUtil.Sort { 5:#|Op N
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* (non-Javadoc)
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ==oJhB
*/ j,lI\vw<
public void sort(int[] data) { mx}4iO:Xp
int temp; tR2%oT>h
for (int i = 0; i < data.length; i++) { }`!-WY
int lowIndex = i; ,?HM5c{'[Y
for (int j = data.length - 1; j > i; j--) { 7%[ YX
if (data[j] < data[lowIndex]) { |.$7.8g
lowIndex = j; .}uri1k"@k
} Y9&na&vY?
} U0iV
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SortUtil.swap(data,i,lowIndex); jw
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Shell排序: n)z:C{
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package org.rut.util.algorithm.support; t* p%!xsH
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import org.rut.util.algorithm.SortUtil; |`s:&<W+kp
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/** CS5[E-%}T=
* @author treeroot -WR<tkK
* @since 2006-2-2 g!o2vTt5
* @version 1.0 ,V^$Meh
*/ }' sW[?ik
public class ShellSort implements SortUtil.Sort{ 6j+X@|2^
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/* (non-Javadoc) O:
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
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public void sort(int[] data) { qZ
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for(int i=data.length/2;i>2;i/=2){ WK@<#
for(int j=0;j insertSort(data,j,i); }TAG7U*
} ez)Ks`
} RCxwiZaf33
insertSort(data,0,1); <`NsX
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} 5hDy62PRr
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/** 25j\p{*
* @param data B@VAXmCaoV
* @param j 6`bR'
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* @param i g+c%J#F=
*/ <P6d-+
private void insertSort(int[] data, int start, int inc) { AT1{D!b
int temp; ;:+2.//
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); xU6dRjYhH9
} TeO'E<@
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} |JP'j1 Ka
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} M)AvcZNs
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快速排序: ?r5a*
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package org.rut.util.algorithm.support; 3(vm'r&5n>
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import org.rut.util.algorithm.SortUtil; 7zJ2n/`m*
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/** _-^mxC|M
* @author treeroot [TFp2B~)#
* @since 2006-2-2 7^mQfQv
* @version 1.0 Ap;^\5
*/ -T-yt2h(
public class QuickSort implements SortUtil.Sort{ Z glU{sU
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/* (non-Javadoc) a/3'!} &e
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JnIG;/
*/ inZ0iU9dy
public void sort(int[] data) { XW@C_@*J
quickSort(data,0,data.length-1); q(L.i)w$
} o_[~{@ RoR
private void quickSort(int[] data,int i,int j){ 2;3&&yK2b
int pivotIndex=(i+j)/2; gs0`nysM#
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SortUtil.swap(data,pivotIndex,j); Sm?|,C3V
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int k=partition(data,i-1,j,data[j]); w"#rwV&
SortUtil.swap(data,k,j); Wm5[+z|2?9
if((k-i)>1) quickSort(data,i,k-1); _#+l?\u
if((j-k)>1) quickSort(data,k+1,j); *M0O&" ~j
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} q;IuV&B
/** C dPQhv)m
* @param data D%c^j9' 1
* @param i pSIXv%1J
* @param j Wa.!eAe}
* @return SW+;%+`
*/ \Y!=O=za]
private int partition(int[] data, int l, int r,int pivot) { ,:MUf]Ky
do{ P4c3kO0
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 8>D*U0sNl
SortUtil.swap(data,l,r); ]#rV]As
}
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while(l SortUtil.swap(data,l,r); OYn5k6
return l; RL/7>YQ
} ;C
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改进后的快速排序: PxvxZJf$@
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package org.rut.util.algorithm.support; :,j^ei
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import org.rut.util.algorithm.SortUtil; BM)a,fIgo
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/** N2k{@DY
* @author treeroot %W| Sl
* @since 2006-2-2 zxx9)I@?A
* @version 1.0 A&%7Z^Pp
*/ SkVah:cF-
public class ImprovedQuickSort implements SortUtil.Sort { "{H{-`Ni
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private static int MAX_STACK_SIZE=4096; nA.U'=`
private static int THRESHOLD=10; 4e;
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/* (non-Javadoc) >r,z^]-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) r<