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。 &AVpLf:?
插入排序: pLa[}=
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package org.rut.util.algorithm.support; <!-sZ_qq
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import org.rut.util.algorithm.SortUtil; ^-mRP\5
/** WwH+E]^e+
* @author treeroot 9a\nszwa
* @since 2006-2-2 JO=[YoTr
* @version 1.0 |(moWY=
*/ IK,|5] *Ar
public class InsertSort implements SortUtil.Sort{ D|Iur W1f
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/* (non-Javadoc) }i{sg#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dzK{
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*/ `l2O?U -@
public void sort(int[] data) { ?
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int temp; !US d9
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 8}H1_y-g[
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} %ms'n
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冒泡排序: )X4K2~k*
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package org.rut.util.algorithm.support; 3lV^B[$
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import org.rut.util.algorithm.SortUtil; <YA&Dr3OD
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/** K{n{KB&_&
* @author treeroot #;n+YM">:
* @since 2006-2-2 G?f\>QSZ
* @version 1.0 q$1PG+-
*/ ]yjl~3
public class BubbleSort implements SortUtil.Sort{ 9/+Nj /
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/* (non-Javadoc) %WqNiF0-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {`2R,Jb%S
*/ E?(xb B
public void sort(int[] data) { o=FE5"t
int temp; eC5 $#,HiC
for(int i=0;i for(int j=data.length-1;j>i;j--){ ^pM+A6
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if(data[j] SortUtil.swap(data,j,j-1); + <,gB $j
} NmMIQ@K
} ;8!Z5H
} %uv?we7
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} VMoSLFp^R
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选择排序: v]__%_
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package org.rut.util.algorithm.support; >]o}}KF?
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import org.rut.util.algorithm.SortUtil; s2j['g5
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/** L4uFNM]
* @author treeroot OL_{_K(w
* @since 2006-2-2 8M@BG8
* @version 1.0 0%!rx{f#\
*/ :xKcpY[{
public class SelectionSort implements SortUtil.Sort { Y>jiXl?&
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/* ;3_l@dP"
* (non-Javadoc) .z13 =yv
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [ sd;`xk
*/ qj cp65^
public void sort(int[] data) { ]%Zz \Q
int temp; NEa>\K<\
for (int i = 0; i < data.length; i++) { r>bJ%M}
int lowIndex = i; N'xSG`,Mg
for (int j = data.length - 1; j > i; j--) { (E]!Z vE
if (data[j] < data[lowIndex]) { /?';
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lowIndex = j; jqr1V_3(
} ]kG(G%r|M
} s,a}?W
SortUtil.swap(data,i,lowIndex); ^5r9 5
} sgE-`#
} s+:=I
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} LJoGpr8
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Shell排序: ~
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package org.rut.util.algorithm.support; pLv$\MiZ
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import org.rut.util.algorithm.SortUtil; 9n}p;3{f
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/** +2 Af&~T
* @author treeroot _)]CzBRq\6
* @since 2006-2-2 Z$J#|
* @version 1.0 XD"_Iq!
*/ G%d
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public class ShellSort implements SortUtil.Sort{ ioPUUUb)
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/* (non-Javadoc) |p$spQ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ePIiF_X
*/ _=|vgc
public void sort(int[] data) { l7De6A"
for(int i=data.length/2;i>2;i/=2){ Fd*8N8Pi
for(int j=0;j insertSort(data,j,i); M:5b4$Qh<
} C*nB
} }MUn/ [x
insertSort(data,0,1); gk`zA
} Z4IgBn(Z_}
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/** h<~7"ONhV
* @param data soCi[j$lH
* @param j [
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* @param i }B~If}7
*/ svXR<7)#
private void insertSort(int[] data, int start, int inc) { /PsnD_s]5
int temp; }jill+]
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); A=Ss6-Je
} %c[ V
} #pcP!
} :T9<der,
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} z2Z^~,i
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快速排序: U4G`ZKv(!
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package org.rut.util.algorithm.support; 41SGWAd#:
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import org.rut.util.algorithm.SortUtil; fU!<HDh
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/** /> 4"~q)
* @author treeroot "O(9 m.CZ
* @since 2006-2-2 }pJwj
* @version 1.0 P (S>=,Y&
*/
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public class QuickSort implements SortUtil.Sort{ H*9~yT'Q
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/* (non-Javadoc) ~H!S,"n^,P
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "+unS)M;Y
*/ N<DGw?Rl
public void sort(int[] data) { \(%Y%?dy
quickSort(data,0,data.length-1); '? jlH0;
} jMpD+Mb
private void quickSort(int[] data,int i,int j){ 0>zbCubPH
int pivotIndex=(i+j)/2; VsA'de!V4[
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SortUtil.swap(data,pivotIndex,j); 1IVuSp`{FU
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int k=partition(data,i-1,j,data[j]); VcoOeAKL
SortUtil.swap(data,k,j); *_ ?dVhxf
if((k-i)>1) quickSort(data,i,k-1); 0:b2(^]bg
if((j-k)>1) quickSort(data,k+1,j); RVeEkv[qp
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} +k`!QM>e-
/** +E1h#cc)
* @param data <vwkjCA`
* @param i Onwp-!!.
* @param j @Pt="*g
* @return GH[wv<
*/ ~}<DG1!
private int partition(int[] data, int l, int r,int pivot) { H9CS*|q6r
do{ B,{K*-7)MX
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); MR}Agu#LG
SortUtil.swap(data,l,r); :^(>YAyHj^
} HbW0wuI
while(l SortUtil.swap(data,l,r); QcpXn4/*
return l; l<);s
} A,4fEmWM
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改进后的快速排序: 7.`fJf?
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package org.rut.util.algorithm.support; 1/"WD?a
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import org.rut.util.algorithm.SortUtil; s-v
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/** +>PX&F
* @author treeroot 6:~v4W!k
* @since 2006-2-2 !50[z:
* @version 1.0 LGtIm7
*/ V5rST +
public class ImprovedQuickSort implements SortUtil.Sort { KY~-;0x
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private static int MAX_STACK_SIZE=4096; rOVVL%@QqJ
private static int THRESHOLD=10; [ 1u-Q%?#
/* (non-Javadoc) Gn&4V}F
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !@v7Zu43,
*/ @mfEKU!
public void sort(int[] data) { ^f(@gS}?
int[] stack=new int[MAX_STACK_SIZE]; ^U!0-y
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int top=-1; GP#aya
int pivot; 8e(\%bX
int pivotIndex,l,r; L+q/){Dd(
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stack[++top]=0; @/31IOIV]`
stack[++top]=data.length-1; OE- gC2&Bm
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while(top>0){ 3p'I5,}
int j=stack[top--]; Cid
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int i=stack[top--]; GmP@;[H"
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pivotIndex=(i+j)/2; {yExQbN
pivot=data[pivotIndex]; %QP0
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SortUtil.swap(data,pivotIndex,j); n<u
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while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ~
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SortUtil.swap(data,l,r); n~V ]Z
} 5yz(>EVH
while(l SortUtil.swap(data,l,r); _BP&n