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。 q(9S4F
插入排序: iRIO~XVo
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package org.rut.util.algorithm.support; =A]*r9
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import org.rut.util.algorithm.SortUtil; >>b <)?3Rv
/** lvd`_+P$
* @author treeroot 5kx-s6`!
* @since 2006-2-2 3Jh!YzI8
* @version 1.0 crbph.0
*/ /7fD;H^*
public class InsertSort implements SortUtil.Sort{ v 1VH&~e
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/* (non-Javadoc) ) -^(Su(!
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _C54l
*/ L&,&SDr
public void sort(int[] data) { )jPIBzMys
int temp; pdySip<
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); r T"3^,,
} <5]ufv
} >n"4M~I
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冒泡排序: %:!ILN
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package org.rut.util.algorithm.support; E;rS"'D:
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import org.rut.util.algorithm.SortUtil; @:Emmzucv|
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/** {WvYb,
* @author treeroot 9U4 D$M
* @since 2006-2-2 ,}:}"cl
* @version 1.0 0t(2^*I?>
*/ D%*Ryg
public class BubbleSort implements SortUtil.Sort{ p|>m 2(|
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/* (non-Javadoc) 1$)}EL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !<vy!pXg
*/ G$[Hm\V
public void sort(int[] data) { A=+1PgL66
int temp; {_R{gpj'
for(int i=0;i for(int j=data.length-1;j>i;j--){ &Lbh?C
if(data[j] SortUtil.swap(data,j,j-1); ^6QzaC3
} va2FgW`Bd+
} ~X(2F#{<{
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} tTbfyI
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选择排序: '<U4D
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package org.rut.util.algorithm.support; =wMq!mBd
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import org.rut.util.algorithm.SortUtil; ~(`&hYE
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/** .cz7jD
* @author treeroot 84<zTmm
* @since 2006-2-2 x^Zm:Jrw~
* @version 1.0 OHv4Yy]$B
*/ QYEGiT
public class SelectionSort implements SortUtil.Sort { u
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/* p2
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* (non-Javadoc) d~q7!
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u%5 ,U-
*/ LRR)T: e}q
public void sort(int[] data) { PPde!}T$
int temp; |-TxX:O-
for (int i = 0; i < data.length; i++) { XUA%3Xr
int lowIndex = i; j_.tg7X
for (int j = data.length - 1; j > i; j--) { n5y0$S/D
if (data[j] < data[lowIndex]) { ^iWJqpLe
lowIndex = j; &79F
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} I#'yy7J
} d .Q<!Au3
SortUtil.swap(data,i,lowIndex); 6]mAtA`Y
} +F~B"a
} l=L(pS3 ~
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} Z4g<Ys*
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Shell排序: |xT'+~u
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package org.rut.util.algorithm.support; S263h(H
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import org.rut.util.algorithm.SortUtil; o*3\xg
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/** X<H{
* @author treeroot @k\,XV`T~t
* @since 2006-2-2 *J{E1])<a
* @version 1.0 g9Ty%|Q7(
*/ 6Ilj7m*
public class ShellSort implements SortUtil.Sort{ Cq[Hh#q
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/* (non-Javadoc) $W9dUR0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4 %4Yqx )
*/ k"6v& O
public void sort(int[] data) { f ~bgZ
for(int i=data.length/2;i>2;i/=2){ +|H,N7a<
for(int j=0;j insertSort(data,j,i); ]]y4$[|L
} ~%h&ELSw
} ZG?e%
insertSort(data,0,1); 9m<%+S5&
} 79I"F'
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/** ENI|e,'[
* @param data e7tio!
* @param j Io tc>!
* @param i E(&zH;?_
*/ CAmIwAx6;
private void insertSort(int[] data, int start, int inc) { ~qXwQ@
int temp; PR*EyM[T
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); c:+UC
} ;,7m
} `R!2N4|;
} =1xVw5^F
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} 'v=BAY=Ef
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快速排序: l<'}`
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package org.rut.util.algorithm.support; Vy^mEsQC+h
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import org.rut.util.algorithm.SortUtil; Vt-V'`Y
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/** v- p8~u1N
* @author treeroot KuEM~Q=
* @since 2006-2-2 t~.^92]s|
* @version 1.0 19RbIG/X
*/ k(v &+v
public class QuickSort implements SortUtil.Sort{ 'Mhnu2d
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/* (non-Javadoc) >h~>7i(A
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E^m)&.+'M
*/ lE!.$L*k
public void sort(int[] data) { RWoVN$i>
quickSort(data,0,data.length-1); lQ"t#b+
} um\A
private void quickSort(int[] data,int i,int j){ O2fFh_\
int pivotIndex=(i+j)/2; \&U"7gSL
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SortUtil.swap(data,pivotIndex,j); Z=<D`
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int k=partition(data,i-1,j,data[j]); uC6e2py<[
SortUtil.swap(data,k,j); z6h/C{
if((k-i)>1) quickSort(data,i,k-1); KXUJ*l-5
if((j-k)>1) quickSort(data,k+1,j); Q5IN1
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/** iR8;^C.aT
* @param data ;<%d^
* @param i NH1ak(zHW
* @param j rP/W,!
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* @return .Np!Qp1*
*/ 'b+
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private int partition(int[] data, int l, int r,int pivot) { pBn;:
do{ c:s[vghH^#
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); f917F.1I
SortUtil.swap(data,l,r); z ^y -A?
} D2io3Lo$ov
while(l SortUtil.swap(data,l,r); 6+C]rEY/o
return l; 5RY rAzQo
} h*sL' fJ]
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} d ;,C[&
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改进后的快速排序: Ppx 4#j
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package org.rut.util.algorithm.support; Hq,NOP
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import org.rut.util.algorithm.SortUtil; ;:bnLSPo
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/** mk6>}z*
* @author treeroot Yof]
* @since 2006-2-2 lO}I>yo}\
* @version 1.0 T'N/A9{q
*/ ,{Z!T5 |
public class ImprovedQuickSort implements SortUtil.Sort { ;3Q3!+%j
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private static int MAX_STACK_SIZE=4096; 3p'(E\VJ
private static int THRESHOLD=10; Cn>t"#zs!~
/* (non-Javadoc) %B| Ca&
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1NK,:m
*/ qf%p#+:B3
public void sort(int[] data) { s]xn&rd_
int[] stack=new int[MAX_STACK_SIZE]; 1#2L9Bi
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int top=-1; _ n4C~
int pivot; 'tVe#oI
int pivotIndex,l,r; _~!c%_
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stack[++top]=0; f^[m~
stack[++top]=data.length-1; iF"kR]ZL
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while(top>0){ |(9l_e|
int j=stack[top--]; ?nf4K/IjZ!
int i=stack[top--]; hP
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pivotIndex=(i+j)/2; P_M!h~
pivot=data[pivotIndex]; ")W5`9
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SortUtil.swap(data,pivotIndex,j); !Eb!y`jK
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file://partition F4g3l
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r=j; Wk]E6yz6
do{ ,){WK|_
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); CbT ;#0
SortUtil.swap(data,l,r); gq+#=!(2
} (z%OK[
while(l SortUtil.swap(data,l,r); wgZ6|)!0
SortUtil.swap(data,l,j); vz)zl2F5sY
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if((l-i)>THRESHOLD){ eak+8URo
stack[++top]=i; n5?7iU&JIo
stack[++top]=l-1; {z8wFL\
} ABhQ7
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if((j-l)>THRESHOLD){ GUsJF;;V
stack[++top]=l+1; Ewo6Q){X
stack[++top]=j; D*)"?LG
} ;-kg3fGB1Q
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} Bv}nG|
file://new InsertSort().sort(data); ^~m}(6
insertSort(data); ?O/!pUAu
} Aj@t*3
/** E}|IU Pm
* @param data *GM.2``e
*/ }/F9(m
private void insertSort(int[] data) { *0%G`Q
int temp; nkz^^q`5l7
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6am<V]Hw0F
} `w%Qs)2
} D;X/7 p|>
} E^V4O l<
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} ~"WN4
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归并排序: _(:bGI'.m
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package org.rut.util.algorithm.support; lkgB,cflpi
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import org.rut.util.algorithm.SortUtil; ?rgtbiSW-
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