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。 {dPgf
插入排序: oUx[+Gnv
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package org.rut.util.algorithm.support; jnuY{0(&
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import org.rut.util.algorithm.SortUtil; ~un%4]U
/** tLm867`c7
* @author treeroot gLL-VvJ[
* @since 2006-2-2 8_uzpeRhJc
* @version 1.0 j2h[70fWC
*/ SW(q$i
public class InsertSort implements SortUtil.Sort{ *.f2VQ~H
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/* (non-Javadoc) %'L;FPxB
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +TN9ujL6@
*/ SC#sax4N!=
public void sort(int[] data) { ZF#Rej?
int temp; H L<s@kEZ
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); v7trr W}
} K&A;Z>l,v5
} vxN0,l
} ned2lC&'d>
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冒泡排序: ul5|.C
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package org.rut.util.algorithm.support; w,.qCp T$_
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import org.rut.util.algorithm.SortUtil; #P2;K
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/** L x|',6S
* @author treeroot x.DzViP/
* @since 2006-2-2 !ZtSbOC '
* @version 1.0 V*jsq[q=
*/ 9$d.P6|d>
public class BubbleSort implements SortUtil.Sort{ }4c/YP"a'E
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/* (non-Javadoc) 9\O(n>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `U`#I,Ln[
*/ c5i%(!>
public void sort(int[] data) { ,axDMMDI
int temp; _Sj}~H
for(int i=0;i for(int j=data.length-1;j>i;j--){ ;q#]-^
if(data[j] SortUtil.swap(data,j,j-1); fu\s`W6f&
} iL?iz?+.%@
} (fk5'
} "-i#BjZl/
} }HZ{(?
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} EO"C8z'al
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选择排序: v"1Po_`
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package org.rut.util.algorithm.support; J=WB6zi
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import org.rut.util.algorithm.SortUtil; o$_93<zc
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/** E'dX)J9e$/
* @author treeroot 6* rcR]
* @since 2006-2-2 )&1!xF
* @version 1.0 RR25Q.c
*/ ]EL\)xCr
public class SelectionSort implements SortUtil.Sort { RtF8A5ys
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/* K} x/ BhE+
* (non-Javadoc) G!-J$@P
* 13f<0wg
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lH1g[ ))
*/ ()|3
public void sort(int[] data) { !L\'Mk/=A
int temp; r+gjc?Ol
for (int i = 0; i < data.length; i++) { VWvoQf^+
int lowIndex = i; &IQ%\W#aY
for (int j = data.length - 1; j > i; j--) { fGu!M9qN4
if (data[j] < data[lowIndex]) { f$D@*33ft
lowIndex = j; e@
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} .LE+/n
} .H;B=nd*
SortUtil.swap(data,i,lowIndex); @phN|;?
} ;L6Xs_L~
} L$JI43HZ
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} h[U7!aM
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Shell排序: O-GxUHwWr
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package org.rut.util.algorithm.support; z}APR@?`n8
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import org.rut.util.algorithm.SortUtil; t .=Oj
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/** :('I)C
* @author treeroot
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* @since 2006-2-2 HF4Lqh'oco
* @version 1.0 XS/n>C
*/ V*qY"[
public class ShellSort implements SortUtil.Sort{ {8m1dEC^@Q
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/* (non-Javadoc) {%7<"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~I$}#
*/ =R9*;6?N
public void sort(int[] data) { 8-A|C<
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for(int i=data.length/2;i>2;i/=2){ SfDQ;1?
for(int j=0;j insertSort(data,j,i); VK4/82@5
} bF6gBM@*
} nEVbfNo0
insertSort(data,0,1); JD&U}dJ
} #:
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/** pTET%)3
* @param data Wm>b3:
* @param j Q7k.+2
* @param i QNJ\!+,HV
*/ tR O IBq|
private void insertSort(int[] data, int start, int inc) {
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int temp; JN^bo(kb
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ]L(54q;W
} ,wTg$g-$
} B/_6Ieb+
} EIK*49b2
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} {Q<0\`A
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快速排序: Q?]w{f(
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package org.rut.util.algorithm.support; 1PIzV:L\
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import org.rut.util.algorithm.SortUtil; @\$Keg=>:
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/** E0jUewG
* @author treeroot A^vvST%7
* @since 2006-2-2 u*k*yWdr
* @version 1.0 =LqL@5Xr
*/ J";=d4Sd
public class QuickSort implements SortUtil.Sort{ _#(s2.h~J
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/* (non-Javadoc) #^;s<YZ`
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) MLeX;He
*/ `:3&@.{T(
public void sort(int[] data) { {g@A>
quickSort(data,0,data.length-1); C2.W[T
} jMqx
private void quickSort(int[] data,int i,int j){ F,.Q|.nN
int pivotIndex=(i+j)/2; *I/A,#4r
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SortUtil.swap(data,pivotIndex,j); /.)2d8,
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int k=partition(data,i-1,j,data[j]); ,5:![
SortUtil.swap(data,k,j); ' 3VqkQ4
if((k-i)>1) quickSort(data,i,k-1); PC0HH
if((j-k)>1) quickSort(data,k+1,j); O(Td:Zdp
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} wzbz}P>
/** _f66>a<
* @param data a+'}XEhSC:
* @param i ooDdV
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* @param j A`Q
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* @return } bCK
*/ uDI}R]8~
private int partition(int[] data, int l, int r,int pivot) { .xo_}Vw
do{ 59~FpjJ
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); r
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SortUtil.swap(data,l,r); gE1|lY$NL
} e
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while(l SortUtil.swap(data,l,r); n5 >B LtY
return l; 9PCa*,
} q
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} |yU3Kt
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改进后的快速排序: A{M+vsL
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package org.rut.util.algorithm.support; &p)@8HY
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import org.rut.util.algorithm.SortUtil; LVoyA/F
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/** >mew"0Q
* @author treeroot KZZOi:
* @since 2006-2-2 bu_/R~&3{
* @version 1.0 YV4
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*/ MN\i-vAL8
public class ImprovedQuickSort implements SortUtil.Sort { PRZ8X{h
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private static int MAX_STACK_SIZE=4096; m}rh|x/?
private static int THRESHOLD=10; X;(oz]tr$
/* (non-Javadoc) 3]!h{_:u
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YK7 \D:
*/ @OY1`EuO
public void sort(int[] data) { V*>73I
int[] stack=new int[MAX_STACK_SIZE]; {dZ!I
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int top=-1; L%k67>
int pivot; 98h :X %
int pivotIndex,l,r; VZt;P%1;h
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stack[++top]=0; ,RR;VKj
stack[++top]=data.length-1; Oe/73|
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while(top>0){ pmoGudaRF
int j=stack[top--]; :&qC <UD
int i=stack[top--]; gO9'q='5l
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pivotIndex=(i+j)/2; cl@kRX<7'
pivot=data[pivotIndex]; FoQ?U=er
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SortUtil.swap(data,pivotIndex,j); KUlB2Fqi
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while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); V/@[%w=
SortUtil.swap(data,l,r); fYb KmB
} <=$rU232}
while(l SortUtil.swap(data,l,r); SgyqmYTvZw
SortUtil.swap(data,l,j); 23)F-.C}j
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if((l-i)>THRESHOLD){ (_s;aK
stack[++top]=i; B,r5kQI4
stack[++top]=l-1; V[4(~,9
} KSF5)CZ5
if((j-l)>THRESHOLD){ G% o7BX
stack[++top]=l+1; 5z9JhU
stack[++top]=j; i<'{Y
} ~K4k'
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} mgk64}K [n
file://new InsertSort().sort(data); +[>yO _}
insertSort(data); jG
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} ^xzE^"G6
/** }m9S(Wal
* @param data f:n] Exsy
*/ _e;N'DZ
private void insertSort(int[] data) { O\LjtMF
int temp; mipi]*ZfXE
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); @QvfN>T
} 32M6EEmPG
} un.G6| S
} =%Q\*xaR.W
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} eL>K2Jxq
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归并排序: bMSD/L
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package org.rut.util.algorithm.support; w g$D@E7
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import org.rut.util.algorithm.SortUtil; l
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/** ['/;'NhdlY
* @author treeroot VC/R)%@%
* @since 2006-2-2 hdo+Qezu:
* @version 1.0 516VQ<