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。 0-{l4;o
插入排序: q7'[II;
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package org.rut.util.algorithm.support; W=)wiRQm
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import org.rut.util.algorithm.SortUtil; 6opubI<
/** p<9e5`&I
* @author treeroot N;BS;W5I
* @since 2006-2-2 raPUx _$PH
* @version 1.0 9&t!U+
*/ w}jH,Ew
public class InsertSort implements SortUtil.Sort{ H%\\-Z$#
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/* (non-Javadoc) !Ho=(6V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D;l)&"|r?
*/ Q(e 3-a
public void sort(int[] data) { VSI.c`=,
int temp; yt-F2Z&
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); <(%cb.^c=N
} ErDt~FH
} xp>p#c
} 95G*i;E
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} |NiWr1&i0
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冒泡排序: _Di}={1[.
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package org.rut.util.algorithm.support; Q hHexr6
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import org.rut.util.algorithm.SortUtil; G2x5% `
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/** #(`@D7S"
* @author treeroot /N>bEr4w
* @since 2006-2-2 bof{R{3q
* @version 1.0 cP~?Iz8nD
*/ 1jhGshhp
public class BubbleSort implements SortUtil.Sort{ R{"7q:-
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/* (non-Javadoc) Je6=N3)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pSq3\#Twr
*/ #^bkM)pc
public void sort(int[] data) { [@qUQ,Ie
int temp; 3GS oHsNk
for(int i=0;i for(int j=data.length-1;j>i;j--){ 8;YN`S!o
if(data[j] SortUtil.swap(data,j,j-1); vkXdKL(q
} =lf&mD
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} >Tm|}\qEb
} AwKxt'()^
} Czs4jHTa`
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} F<UEipe/N
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选择排序: p5KM(N6f
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package org.rut.util.algorithm.support; g]g2`ab |
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import org.rut.util.algorithm.SortUtil; V+()`>44
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/** w:z@!<
* @author treeroot s1!_zf_
* @since 2006-2-2 @
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* @version 1.0 ezt_ct/Z
*/ A;sd rA
public class SelectionSort implements SortUtil.Sort { &B^vHH
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/* FRicHs n
* (non-Javadoc) Z:#-4CiP
* dJ#.
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !Cj1:P
*/ :zC'jceO
public void sort(int[] data) { <:u)C;
int temp; _[SP*"
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for (int i = 0; i < data.length; i++) { N.q4Ar[x#p
int lowIndex = i; eo4<RDe<
for (int j = data.length - 1; j > i; j--) { X,/@#pSOz
if (data[j] < data[lowIndex]) { N
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lowIndex = j; JlF0 L%Rc
} [)`9euR%
} N,w;s-*
SortUtil.swap(data,i,lowIndex); -;z&">
} _c|>m4+X
} 7cn"@h rJ
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} hGH{Xp[mW
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Shell排序: B{W2D
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package org.rut.util.algorithm.support; HnVUG4yZTD
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import org.rut.util.algorithm.SortUtil; $2F*p#l(<Z
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/** j>M
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* @author treeroot _tQ=ASe0
* @since 2006-2-2 /n7F]Ok'*
* @version 1.0 *?gn@4Ly
*/ VG'oy
public class ShellSort implements SortUtil.Sort{ /D_8uTS>d[
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/* (non-Javadoc) HPAg1bV:-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -9{}rE
*/ Y}"|J ~
public void sort(int[] data) { R,A|"Q
for(int i=data.length/2;i>2;i/=2){ gv;=Yhw.c
for(int j=0;j insertSort(data,j,i); ?x@B Ze
} M6!kn~
} ~aH*ZA*f
insertSort(data,0,1); 5/mW:G,&
} "HVwm>qEi
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/** IgC)YIhd
* @param data 4(&00#Yxg2
* @param j T}P|uP
* @param i /'G'GQrr
*/ (@M=W.M#
private void insertSort(int[] data, int start, int inc) { [*?P2.b f
int temp; #l-,2C~
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ']f]:X;6w
} P]+^^U
} Tp<=dH%$%"
} ~SJOynSz,
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} ")HTUlcAe}
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快速排序: Z8kO*LYv
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package org.rut.util.algorithm.support; bqf=;N vog
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import org.rut.util.algorithm.SortUtil; Lq
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/** N{P (ym2yR
* @author treeroot 1_/\{quE
* @since 2006-2-2 AUoi$DF(@
* @version 1.0 M.d{:&@`%
*/ |82V`CV
public class QuickSort implements SortUtil.Sort{ >Q+a'bd w
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/* (non-Javadoc) [O [N _z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4ej$)AdW3
*/ Qoq@=|7kxa
public void sort(int[] data) { 7 m&M(ct
quickSort(data,0,data.length-1); 7z=Ss'O]
} TDY}oGmNn
private void quickSort(int[] data,int i,int j){ \{G6!dV|S
int pivotIndex=(i+j)/2; ^gky i/z
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SortUtil.swap(data,pivotIndex,j); 7=T0Sa*;
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int k=partition(data,i-1,j,data[j]); ET_}x7
SortUtil.swap(data,k,j); `"(7)T{
if((k-i)>1) quickSort(data,i,k-1); fylW)W4C
if((j-k)>1) quickSort(data,k+1,j); :":W(O
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} J;"XRE[%5
/** MkJL9eG
* @param data N3r{|Bu
* @param i I U4[}x
* @param j ":"M/v%F
* @return sNX$ =<E
*/ =q5A@!D
private int partition(int[] data, int l, int r,int pivot) { G!OD7:
do{ )KBv[|
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); [rPW@|^5
SortUtil.swap(data,l,r); TmX~vZ
} ,[Cl 'B
while(l SortUtil.swap(data,l,r); [b;Oalw
return l; Ylt[Ks<2
} %F&j B
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} S3qUzK
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改进后的快速排序: r7ywK9UL
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package org.rut.util.algorithm.support; ,*S?L
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import org.rut.util.algorithm.SortUtil; -zc9=n<5
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/** sur2Mw(M"
* @author treeroot rM bb%d:
* @since 2006-2-2 |[o2S9 0
* @version 1.0 r*+9<8-ZX<
*/ &% M^:WT
public class ImprovedQuickSort implements SortUtil.Sort { 0U`Ic_.
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private static int MAX_STACK_SIZE=4096; :?RK>}4|F
private static int THRESHOLD=10; S~Q7>oNm
/* (non-Javadoc) Z/beROW )
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wM!QU{Lz
*/ A|Y\Y }
public void sort(int[] data) { y62;&{?m
int[] stack=new int[MAX_STACK_SIZE]; ItOVx!"@9
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int top=-1; `i{o8l
int pivot; >r]# 77d
int pivotIndex,l,r; y-sQ"HPN
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stack[++top]=0; E/s3@-/
stack[++top]=data.length-1; &nz1[,
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while(top>0){ X:62)^~'
int j=stack[top--]; }doj4
int i=stack[top--]; tanuP@O
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pivotIndex=(i+j)/2; 31b-r[B{%
pivot=data[pivotIndex]; jjl4A}*0
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SortUtil.swap(data,pivotIndex,j); "n]B~D
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file://partition @1n
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r=j; B0R[f
do{ WUa-hm2:
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Brpin
SortUtil.swap(data,l,r); AQ0L9?
} &S|laqH
while(l SortUtil.swap(data,l,r); JHO9d:{-
SortUtil.swap(data,l,j); 2d3wQ)2
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if((l-i)>THRESHOLD){ ,#WXAAmm
stack[++top]=i; 3!}'A
stack[++top]=l-1; #Wc)wL-Tg
} bJBx~
if((j-l)>THRESHOLD){ 3`e1:`Hu
stack[++top]=l+1; IRS^F;)
stack[++top]=j; }qlz^s
} =e._b 7P
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} ~Kb(`Px@
file://new InsertSort().sort(data); xc*ys-Nv
insertSort(data); s#qq%
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} :'!?dszS
/** cL1cBWd
* @param data 7<