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。 #Z2>TN
插入排序: [8V(N2
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package org.rut.util.algorithm.support; -~rr<D\
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import org.rut.util.algorithm.SortUtil; zJB+C=]D7H
/** ,g<>`={kK+
* @author treeroot :kf3_?9rc
* @since 2006-2-2 |-SI(Khjk
* @version 1.0 jzu l{'g
*/ z1}tC\9'%
public class InsertSort implements SortUtil.Sort{ 44/0}v]
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/* (non-Javadoc) aT`02X
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |Oj,S|Z:
*/ t<KEx^gb
public void sort(int[] data) { EkfGw/WDw
int temp; ^c;skV&S
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,b2O^tJF#
} xX/Qoq (}i
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} 9M-NItFos
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} S7\|/h:4
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冒泡排序: e>)}_b
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package org.rut.util.algorithm.support; @; j0c_^"!
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import org.rut.util.algorithm.SortUtil; E|8s2t
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/** #nMP(ShK
* @author treeroot %(O^as
* @since 2006-2-2 K4VPmkG
* @version 1.0 Is,*qrl :
*/ eBLHT
public class BubbleSort implements SortUtil.Sort{ <O`q3u'l
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/* (non-Javadoc) c'wU O3S
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a*$1la'Uf
*/ duiKFNYN
public void sort(int[] data) { 'nmYB:&!
int temp; *}Ae9
for(int i=0;i for(int j=data.length-1;j>i;j--){ R&-W_v+
if(data[j] SortUtil.swap(data,j,j-1); Eb{4.17b
} Jn^Wzn[q
} ND99g
} 0ghwFo
} se*pkgWbz
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} LeRh(a`=$
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选择排序: 4*ty&s=5OJ
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package org.rut.util.algorithm.support; {F{[!.
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import org.rut.util.algorithm.SortUtil; 802]M
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/** H 29 _ /
* @author treeroot ?M1 QJ
* @since 2006-2-2 YM,D`c[pX
* @version 1.0 !Z9ikn4A
*/ A~~|X
public class SelectionSort implements SortUtil.Sort { brhJ&|QDE
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/* "> 4[+'
* (non-Javadoc) kH(3
* zqE8PbU0M;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h.+,*9T\
*/ %y^Kw
public void sort(int[] data) { })=c:h&
int temp; tIp\MXkTQ&
for (int i = 0; i < data.length; i++) { Lu$:,^ C
int lowIndex = i; uJAB)ti2I
for (int j = data.length - 1; j > i; j--) { v:;C|uE|
if (data[j] < data[lowIndex]) { 9#=IrlV4
lowIndex = j; !AD,
} x:D<Mu#
} @+Anv~B.
SortUtil.swap(data,i,lowIndex); W3{5Do.h
} ^
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} SUQ}^gn]
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} eVbh$cIrZ
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Shell排序: OG<]`!"
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package org.rut.util.algorithm.support; 4dD@lG~
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import org.rut.util.algorithm.SortUtil; -B++V
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/** BDm H^`V
* @author treeroot #| e5
* @since 2006-2-2 K|' ]Hje\
* @version 1.0 C&MqUj"]
*/ }v|[h[cZ
public class ShellSort implements SortUtil.Sort{ ]r{#268
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/* (non-Javadoc) &wWGZ~T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I>(z)"1
*/ xN~<<PIZ
public void sort(int[] data) { b|pNc'u:Cn
for(int i=data.length/2;i>2;i/=2){ dIh(~KqB
for(int j=0;j insertSort(data,j,i); |Z)/
} &T4Cn@
} Y~\xWYR
insertSort(data,0,1); kc/H
} 'bqf?3W
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/** Mh@ylp+q
* @param data _:z;j{@4
* @param j K`mxb}
* @param i !QzMeN;D
*/ ~d1RD
private void insertSort(int[] data, int start, int inc) { q\b9e&2Y
int temp; peP:5WB
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 5;%xqdD
} \V7x3*nA
} Dl!'_u
} P_}_D{G
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} ZkG##Jp\>
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快速排序: *h8XbBZH
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package org.rut.util.algorithm.support; lu(Omds+
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import org.rut.util.algorithm.SortUtil; &b:Zln.j
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/** @!tmUme1c
* @author treeroot M)It(K8R
* @since 2006-2-2 2FtEt+A+'
* @version 1.0 Vf2!0
*/ wZolg~dg
public class QuickSort implements SortUtil.Sort{ -^%"w
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/* (non-Javadoc) O&1p2!Bk4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "e?#c<p7
*/ Y+PxV*"a
public void sort(int[] data) { f;I"tugO
quickSort(data,0,data.length-1); R(#;yn
} KuAGy*:4T
private void quickSort(int[] data,int i,int j){ +mel0ZStS
int pivotIndex=(i+j)/2; R}YryzV5
file://swap m=b+V#4i(
SortUtil.swap(data,pivotIndex,j); 8IcQpn#
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int k=partition(data,i-1,j,data[j]); Kd21:|!t^
SortUtil.swap(data,k,j); Gf$>!zXr
if((k-i)>1) quickSort(data,i,k-1); ojI"<Q~g
if((j-k)>1) quickSort(data,k+1,j); v*p)"J *
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} cnO4NUDv
/** HCZ%DBU96
* @param data :)S4MoG
* @param i z^a?t<+
* @param j r]vBr^kq
* @return D%}o26K.C
*/ &l)v'
private int partition(int[] data, int l, int r,int pivot) { 0iq$bT|
do{ *8HxJ+[,[
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 57%cN-v*
SortUtil.swap(data,l,r); O-m}P
} =njj.<BO
while(l SortUtil.swap(data,l,r); x}24?mP
return l; zTzG&B-
} Q9
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} {?_)m/\
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改进后的快速排序: KV(W|~+ rM
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package org.rut.util.algorithm.support; <GlV!y
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import org.rut.util.algorithm.SortUtil; l"g%vS,;`
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/** e 2&i
* @author treeroot KAaeaiD
* @since 2006-2-2 alD|-{Bf
* @version 1.0 >}tG^ )os
*/ m$j;FKz+|
public class ImprovedQuickSort implements SortUtil.Sort { R9HS%O6b6
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private static int MAX_STACK_SIZE=4096; }tq9 /\
private static int THRESHOLD=10; rkXSygb
/* (non-Javadoc) 3hjwwLKG$
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _)\,6| #
*/ ;0{*V5A
public void sort(int[] data) { KPrxw }P
int[] stack=new int[MAX_STACK_SIZE]; f4^_FK&
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int top=-1; IKj1{nZvDc
int pivot; `2+52q<FO
int pivotIndex,l,r; 'KrkCA
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stack[++top]=0; 5Uz(Bi
stack[++top]=data.length-1; Qc/J"<Lx
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while(top>0){ :36^^Wm
int j=stack[top--]; <o`]wOrl
int i=stack[top--]; `&DiM@Sm
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pivotIndex=(i+j)/2; ~Dh}E9E:
pivot=data[pivotIndex]; |EA1+I.&x
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SortUtil.swap(data,pivotIndex,j); =l{KYv
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file://partition =v;@w$#
l=i-1; 9&jNdB
r=j; 3mpjSL
do{ _3JTHf<+
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); W{2y*yqY
SortUtil.swap(data,l,r); .w"O/6."
} breVTY7 S
while(l SortUtil.swap(data,l,r); DSa92:M}
SortUtil.swap(data,l,j); fR{7780WZ
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if((l-i)>THRESHOLD){ WVFy Zp B
stack[++top]=i; }7^*%$
stack[++top]=l-1; ]C^*C|
} *2hzReM
if((j-l)>THRESHOLD){ Cl=ExpX/O
stack[++top]=l+1; ~Y[b
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stack[++top]=j; }x-8@9S~z
} L@uKE jR
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} 3iwZUqyq
file://new InsertSort().sort(data); 7?@v}%w
insertSort(data); )HcC\[
} b9jm=U
/** wVX0!y6
* @param data ^|z>NV5>
*/ Ac%K+Pgk.
private void insertSort(int[] data) { ~KvCb3~X
int temp; $'w l{D"
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 7 |A,GH
} y+<HS]vyV
} n_Dhq (.
} Vh&KfYY
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} [sRQd;+
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归并排序:
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package org.rut.util.algorithm.support; +/'jX?7x%
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