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。 P?dE\Po7
插入排序: <4,>`#NEo
R_ojK&%
package org.rut.util.algorithm.support; b>AFhj :
KwOn<0P
import org.rut.util.algorithm.SortUtil; dV<|ztv
/** ;Y#~2eYCz
* @author treeroot bNR}Mk]?
* @since 2006-2-2 ~WK>+T,%
* @version 1.0 4(MZ*6G]?
*/ ,KF>PoySA
public class InsertSort implements SortUtil.Sort{ _>B0q|]j4'
=CEQYk-y1
/* (non-Javadoc) b(dIl)Y4
:
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uYAPGs#k
*/ ?fDF Rms
public void sort(int[] data) { a?CV;9
int temp; s8.O L_e
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); LbDhPG`u
} 7nB@U$]-Sz
} |D%i3@P&ZR
} nmp(%;<exN
6|3$43J,F
} /j!?qID
QA\eXnR
冒泡排序: Er?Wg 09
k2l(!0o|;
package org.rut.util.algorithm.support; L,0HX
hHF YAh
import org.rut.util.algorithm.SortUtil; dhpEBJ
SlI0p&2,
/** a9qB8/Gg[
* @author treeroot "BZ6G`
* @since 2006-2-2 x]lv:m\)jT
* @version 1.0 w1EYXe
*/ \"c;MK{
public class BubbleSort implements SortUtil.Sort{ $:w4_X5T
S/& _
/* (non-Javadoc) 9VdVom|e
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ma>{((N
*/ a02;Zl
public void sort(int[] data) { ?as)vYP
int temp; /o#!9H
for(int i=0;i for(int j=data.length-1;j>i;j--){ *xXa4HB
if(data[j] SortUtil.swap(data,j,j-1); g
PogV(V
} :;\>jxA
} cAIMt]_
} :-7`Lfi@%
} 'WkDpa
di}YHMTx
} :)X?ML?
RekTWIspT/
选择排序: Q^4j
oHdss;q
package org.rut.util.algorithm.support; Ha9A5Ao}0
BL6t>
import org.rut.util.algorithm.SortUtil; #~%tdmGuL
#bgW{&_y
/** @$z/=g sy
* @author treeroot v;AMx-_WH
* @since 2006-2-2 S',i
* @version 1.0 kxp$Nnk
*/ {X<mr~
public class SelectionSort implements SortUtil.Sort { 7F.t>$'
U8kH'OD
/* !tBNA
* (non-Javadoc) 7
N+;K0
* 5fPYtVm
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 12v5*G[X
*/ 2KMLpO&De
public void sort(int[] data) { |5S/h{gq
int temp; =XsdR?C
for (int i = 0; i < data.length; i++) { m{Jo'*%8f
int lowIndex = i; nw[DI%Tp
for (int j = data.length - 1; j > i; j--) { R X:wt
if (data[j] < data[lowIndex]) { od!"?F
lowIndex = j; 9B")/Hz_
} qN}kDT
} K <7#;
SortUtil.swap(data,i,lowIndex); \]=qGMwFs
} saQA:W;
} |2(z<b&y=
-q\5)nY
} 4Waot
p*)RP2
Shell排序: !/, 6+2Ru
N r5
aU6]
package org.rut.util.algorithm.support; eYBo*
rXXIpQRi$S
import org.rut.util.algorithm.SortUtil; [,)yc/{*
^l;nBD#nJ
/** Z<6xQTx
* @author treeroot \^2%v~
* @since 2006-2-2 mz@`*^7?
* @version 1.0 j|!.K|9B
*/ JCZ"#8M3
public class ShellSort implements SortUtil.Sort{ =A&x
d"
YUd*\_
/* (non-Javadoc) j$<uE{c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /*s:ehj
*/ p%
ESp&
public void sort(int[] data) { FDM&rQ
for(int i=data.length/2;i>2;i/=2){ 7q?u`3l
for(int j=0;j insertSort(data,j,i); j J6Y z
} HubSmbS1
} C-4NiXa
insertSort(data,0,1); pisjfNT`o
} JViglO1\
0 ;kcSz
/** Z)Y--`*
* @param data *F/ uAI^)
* @param j B
MU@J
* @param i ]bCeJE.+)
*/ c n#JO^8
private void insertSort(int[] data, int start, int inc) { 'bp*hqG[
int temp; xxOo8+kA
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); HVaWv ].
} 9k =-8@G9
} ;V]EF
} bUbM }
.CH0PK=l
} ;K 38I}
IQ[?ej3W
快速排序: ZK<kn8JJ
d
(]t}
package org.rut.util.algorithm.support; un0tzz
} Zu2GU$6
import org.rut.util.algorithm.SortUtil; (yQ]n91 Q,
E15"AO
/** %\PnsnJ9Q
* @author treeroot 6#VG,'e3
* @since 2006-2-2 :"? boA#L
* @version 1.0 GgkljF@{}
*/ e&Z}struE
public class QuickSort implements SortUtil.Sort{ U*F|Z4{W
INSI$tA~
/* (non-Javadoc) -\:#z4Tc
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q#xeu
*/ HpXMPHd
public void sort(int[] data) { A3ad9?LR[R
quickSort(data,0,data.length-1); FSv')`}
} a6=mE?JTB
private void quickSort(int[] data,int i,int j){ Vr/UbgucJ
int pivotIndex=(i+j)/2; /=Bz[O
file://swap <y5V],-U
SortUtil.swap(data,pivotIndex,j); X.<_TBos|
b2c% 0C
int k=partition(data,i-1,j,data[j]); cAJKFuX"
SortUtil.swap(data,k,j); L;30&a
if((k-i)>1) quickSort(data,i,k-1); |qbCmsY5/
if((j-k)>1) quickSort(data,k+1,j); HH+R47%*
s>z$_
} $@d`Kz;
/** `EVTlq@<
* @param data @!6eRp>Z
* @param i c 2j?<F1
* @param j L(Q v78F
* @return r4caIV
*/ |`T3H5X>
private int partition(int[] data, int l, int r,int pivot) { .CFaBwj
do{ p#~'xq
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); m&o}qzC'y
SortUtil.swap(data,l,r); X&DuX %x0
} VpSk.WY/ e
while(l SortUtil.swap(data,l,r); ie+&@u
return l; *>%34m93
} Gxfw!aF~
TN3, \qgV
} T.="a2iS2
8}h ^Frh
改进后的快速排序: ?^P#P0
YfUdpa0
package org.rut.util.algorithm.support; 6'ye-}vD-
WmLl.Vv=
import org.rut.util.algorithm.SortUtil; awuUaE
Zy@35;r
/** vfzGRr
* @author treeroot Ga~N7
* @since 2006-2-2 _i~n!v
* @version 1.0 ]YkF^Pf!v
*/ ;>[).fX>/
public class ImprovedQuickSort implements SortUtil.Sort { =Xzqp,
mtuq
private static int MAX_STACK_SIZE=4096; 8,2l >S
private static int THRESHOLD=10; m3XL;1y:a
/* (non-Javadoc) B#o(21s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kH*l83
*/ 9oS \{[x.
public void sort(int[] data) { \@nmM&7C!4
int[] stack=new int[MAX_STACK_SIZE]; =:`1!W0I
T_ Q/KhLU
int top=-1; 3 2Q/4
int pivot; -yfyd$5j
int pivotIndex,l,r; D.)$\Caq
k6rX/ocu
stack[++top]=0; mH*42XC*
stack[++top]=data.length-1; evsH>hE^
C- ]H+p
while(top>0){ q:#,b0|bv
int j=stack[top--]; D
h ]+HF
int i=stack[top--]; $1oU^VY
>`=
'~y8
pivotIndex=(i+j)/2; M]!\X6<_
pivot=data[pivotIndex]; w<j6ln+nM
eJ)Bs20Q
SortUtil.swap(data,pivotIndex,j); g.f!Uc{
tp$NT.z
file://partition >#dNXH]9
l=i-1; VA4vAF
r=j; 5b9_6L6
do{ =%Gecj
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); n|NI]Qi*
SortUtil.swap(data,l,r); wRf_IBhCd
} 1JgnuBX"
while(l SortUtil.swap(data,l,r); Tz58@VY V
SortUtil.swap(data,l,j); `ea;qWy
u(02{V
if((l-i)>THRESHOLD){ lT$Vv=M
stack[++top]=i; rS/Q
stack[++top]=l-1; }aXc,;Ps
} hd9fD[5
if((j-l)>THRESHOLD){ xuO5|{h
stack[++top]=l+1; N-jFA8n
stack[++top]=j; TJ7on.;
} lE08UEk1i
JI )+
} 1Y@6oT
file://new InsertSort().sort(data); gj\r>~S
insertSort(data); ;3Fgy8T
} eB/3MUz1
/** #^<