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。 H+y(W5|2/X
插入排序: .<566g}VP
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package org.rut.util.algorithm.support; oV"#1lp*
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import org.rut.util.algorithm.SortUtil; >utm\!Gac
/** INqD(EG
* @author treeroot KR4X&d6
* @since 2006-2-2 B|U*2|e
* @version 1.0 [F{q.mZj
*/ $\?BAkx
public class InsertSort implements SortUtil.Sort{ ew
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/* (non-Javadoc) 8$9<z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?CIMez(h
*/ ]`39E"zY
public void sort(int[] data) { _1_CYrUc
int temp; ``KimeA~
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); N
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} tmEF7e`(o
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冒泡排序: F;$z[z
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package org.rut.util.algorithm.support; %_Gc9SI
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import org.rut.util.algorithm.SortUtil; aoj6/
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/** 1}nrVn[B9
* @author treeroot Ca}T)]//
* @since 2006-2-2 .:gZ*ks~
* @version 1.0 6\"g,f
*/ @%Y$@Qb{
public class BubbleSort implements SortUtil.Sort{ yg34b}m{
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/* (non-Javadoc) 6t@kft>Nv
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9XtR8MH
*/ 1t7 vP;
public void sort(int[] data) { d7
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int temp; i i&kfy
for(int i=0;i for(int j=data.length-1;j>i;j--){ /J{
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if(data[j] SortUtil.swap(data,j,j-1); sk*AlSlM
} &Luq}^u
} n<RvL^T=
} :f<:>"<
} NKyaR_q`
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} +b@KS"3h
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选择排序: ~2 aR>R_nT
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package org.rut.util.algorithm.support; x[XN;W&
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import org.rut.util.algorithm.SortUtil; vX|i5P0)8
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/** M.B0)
* @author treeroot D|m]]B
* @since 2006-2-2 f Cg"tckE
* @version 1.0 5-rG 8
*/ G-FeDP
public class SelectionSort implements SortUtil.Sort { Y:UDte[Lb
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/* ~Q<h,P
* (non-Javadoc) U Px7u%Do
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }EFMJ,NQ
*/ 3O % u?
public void sort(int[] data) { ~J #^L*
int temp; :
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for (int i = 0; i < data.length; i++) { 7O)j]eeoL
int lowIndex = i; [fVtQ@-S!
for (int j = data.length - 1; j > i; j--) { ,]CZ(q9-
if (data[j] < data[lowIndex]) { fd Vye|%
lowIndex = j; PeCU V6
} w.v yEU^
} x-W6W
SortUtil.swap(data,i,lowIndex); E1'|
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Shell排序: gN"Abc
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package org.rut.util.algorithm.support; s^O>PEX&<I
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import org.rut.util.algorithm.SortUtil; C8^=7HEB
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/** (jQ]<q%P
* @author treeroot (y^[k {#
* @since 2006-2-2 o]Ln:k l
* @version 1.0 Y<1]{4Wt
*/ ';T=kS<^_
public class ShellSort implements SortUtil.Sort{ 47]?7GU,
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/* (non-Javadoc) SU.9;I
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JjO="Cmk/
*/ X MkyX&y
public void sort(int[] data) { ,V$PV,G
for(int i=data.length/2;i>2;i/=2){ G3 h&nH,>
for(int j=0;j insertSort(data,j,i); wXj!bh8\r
} bBwMx{iNNz
}
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insertSort(data,0,1); %~z/, [wk
} BgPwIK
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/** mv%Zh1khn/
* @param data cSMiNR
* @param j Glz yFj
* @param i E05RqnqBn0
*/ .Ioj]r
private void insertSort(int[] data, int start, int inc) { UXU!sd
int temp; (t^&L
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); FPg5!O%
} :Ng4?
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} ;|nC;D]
} 4VPJv>^
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} ZW+[f$X
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快速排序: hu=b,
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package org.rut.util.algorithm.support; B Q)1)8r
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import org.rut.util.algorithm.SortUtil; -;VKtBXP</
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/** _dg2i|yP<
* @author treeroot +a@:?=hc
* @since 2006-2-2 Yh^~4S?
* @version 1.0 lQt&K1m
*/ jg,oGtRz
public class QuickSort implements SortUtil.Sort{ vbol70
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/* (non-Javadoc) Y(:.f-Du
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d-cK`pSB
*/ ="M7F0k
public void sort(int[] data) { gy%/zbZx
quickSort(data,0,data.length-1); T(n<@Ac]V
} x37pj)i/
private void quickSort(int[] data,int i,int j){ Py}`k 1t*f
int pivotIndex=(i+j)/2; xt{f+c@P
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SortUtil.swap(data,pivotIndex,j); NZj_7j|o9
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int k=partition(data,i-1,j,data[j]); h[Hn*g
SortUtil.swap(data,k,j); M=HP!hn
if((k-i)>1) quickSort(data,i,k-1); HOEjLwH
if((j-k)>1) quickSort(data,k+1,j); )JYt zc
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} d&!ZCq#_e
/** m{~p(sQL
* @param data &s]wf
* @param i =K#12TRf
* @param j 9)_fH6r
* @return b[mAkm?9+1
*/ ZO^Y9\L
private int partition(int[] data, int l, int r,int pivot) { zmREzP#X
do{ O@n1E'S/
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ao@"j}c
SortUtil.swap(data,l,r); .H.#W1`
} ~-1!?t/%
while(l SortUtil.swap(data,l,r); q;XO1Se
return l; z j[/~I
} !A5UT-
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改进后的快速排序: 3`W=rIMli
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package org.rut.util.algorithm.support; m/2LwN
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import org.rut.util.algorithm.SortUtil; (3H'!P7|~
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/** Pk94O
* @author treeroot 3I rmDT
* @since 2006-2-2 Do&em8i
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* @version 1.0 R0 g-
*/ ~Sr`Tlp
public class ImprovedQuickSort implements SortUtil.Sort { ka3(sctZ5
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private static int MAX_STACK_SIZE=4096; s'4S,
private static int THRESHOLD=10; W?*]'0
/* (non-Javadoc) $#bgt
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #U46Au
*/ LuLnmnmB
public void sort(int[] data) { g?(h{r`
int[] stack=new int[MAX_STACK_SIZE]; k8]uy2R6}
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int top=-1; GMY"*J<E
int pivot; ~"oxytJ
int pivotIndex,l,r; 71nI`.Z
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stack[++top]=0; 4h|48</
stack[++top]=data.length-1; ]3+xJz~=
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while(top>0){ ciq'fy
int j=stack[top--]; %:^|Q;xe
int i=stack[top--]; T8ga)BA
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pivotIndex=(i+j)/2; F<KUVe
pivot=data[pivotIndex]; UR/lM,N;
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SortUtil.swap(data,pivotIndex,j); U~,~ GU=X
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file://partition J9tQ@3{f
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r=j; AWp{n
do{ t-xw=&!w
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); n1X.]|6'
SortUtil.swap(data,l,r); Dm,*G`Js
} }d,iA FG
while(l SortUtil.swap(data,l,r); Lyx \ s;
SortUtil.swap(data,l,j); FfDe&/,/
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if((l-i)>THRESHOLD){ Af zE0mBW
stack[++top]=i; Ol }^'7H
stack[++top]=l-1; 1NP(3yt%
} _x.!,
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if((j-l)>THRESHOLD){ \2F$FRWo
stack[++top]=l+1; 6[-N})
stack[++top]=j; s^
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} ews4qP
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} DI P(
file://new InsertSort().sort(data); a0vg%Z@!
insertSort(data); t@a2@dX|
} Vb=Oz
/** YS}uJ&WoF
* @param data H.8f-c-4we
*/ JN{.-k4Ha
private void insertSort(int[] data) { l8"
int temp; NH?q/4=I0W
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); f0 ;Fokt(
} yQ33JQr
} a88(,:t
} 3NEbCILF
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归并排序: 6cCC+*V{
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package org.rut.util.algorithm.support; _uvRC+~R
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import org.rut.util.algorithm.SortUtil; DE GEr-
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/** NJEubC?
* @author treeroot ] ~;x$Z)
* @since 2006-2-2 Et\z^y
* @version 1.0 e 1W9Z $m
*/ AE:IXP|c
public class MergeSort implements SortUtil.Sort{ g~5$X{
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/* (non-Javadoc) &