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。 iOz<n
z
插入排序: bf2R15|t5`
F_;oZ
package org.rut.util.algorithm.support; "8|y
oZ95 )'L,
import org.rut.util.algorithm.SortUtil; )
?rJKr[`
/** Cd)e_&
* @author treeroot FrD.{(/~
* @since 2006-2-2 p%e!&:!
* @version 1.0 RP'`\||*
*/ u%?u`n2'
public class InsertSort implements SortUtil.Sort{ KpBh@S
8;9GM^L
/* (non-Javadoc) n's3!HQY[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) b9%}<w
*/ Pm; /Ua
public void sort(int[] data) { 5 (bG
int temp; ,GEMc a,`
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Ti`<,TA54
} 3N6U6.Tqb
} 7?j$ Lwt
} BX$t |t;!m
Y W_E,A>h
} bep}|8,#u
M>J8J*
冒泡排序: Ge$cV}
X&DuX %x0
package org.rut.util.algorithm.support; |8}f
,}F2l|x_
import org.rut.util.algorithm.SortUtil; *>%34m93
):?ype>
/** p.i$[6M
* @author treeroot T.="a2iS2
* @since 2006-2-2 hkSpG{;7
* @version 1.0 ?^P#P0
*/ YfUdpa0
public class BubbleSort implements SortUtil.Sort{ m! &bK5+*
WmLl.Vv=
/* (non-Javadoc) awuUaE
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Yu=4j9e_mG
*/ vfzGRr
public void sort(int[] data) { Ga~N7
int temp; _H^Ij
for(int i=0;i for(int j=data.length-1;j>i;j--){ 6~GaFmW=
if(data[j] SortUtil.swap(data,j,j-1); vFY/o,b \
} pW O-YZ#+
} D4'"GaCv
} mtuq
} g(<02t!OT=
m3XL;1y:a
} B#o(21s
kH*l83
选择排序: V[,/Hw~d%
WpC@nz?
package org.rut.util.algorithm.support; yAtM|:qq
"lLt=s2>L
import org.rut.util.algorithm.SortUtil; AC3K*)`E
(u85$_C
/** [YP8z~
* @author treeroot A@*P4E`xp
* @since 2006-2-2 w_G/[R3
* @version 1.0 ,$5;
*/ @va{&i`%A7
public class SelectionSort implements SortUtil.Sort { ZmO/6_nU?
I^/Ugu
/* Gdnk1_D>
* (non-Javadoc) ;5#P?
* hZI9*=`,"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =wK3\rG
*/ |s|>46E
public void sort(int[] data) { !Jb?rSJ.h
int temp; 4?M=?K0
for (int i = 0; i < data.length; i++) { T3Kq1
Rh
int lowIndex = i; YD2M<.U
for (int j = data.length - 1; j > i; j--) { //KTEAYyy#
if (data[j] < data[lowIndex]) { 7>xxur&
lowIndex = j; N'Va&"&73>
} _6THyj$f
} `m<l8'g
SortUtil.swap(data,i,lowIndex); Cca(
oV
} N J:]jd
} {>OuxVl??k
7M}T^LC
} (rFY8oHD
U
jVo "K
Shell排序: aW %ulZ
l0Jpf9Aue
package org.rut.util.algorithm.support; NFY,$
KXcG;b[7n
import org.rut.util.algorithm.SortUtil; K]zBPfx
FB@c
+*1
/** gqNd@tYI
* @author treeroot ?PiJ7|
* @since 2006-2-2 VZYdCZ&l7
* @version 1.0 E5 H6&XU
*/ <VB
public class ShellSort implements SortUtil.Sort{ 'mpY2|]\$
al=Dy60|z
/* (non-Javadoc) bj(U?$
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) eJE?H]
*/ O(,Ezyx
public void sort(int[] data) { ru3nnF_I
for(int i=data.length/2;i>2;i/=2){ s['F?GWg
for(int j=0;j insertSort(data,j,i); ?nrd$,
} ^C>i(j&
} ;E:ra_l
insertSort(data,0,1); ?v#t{e0eQ
} n?&G>`u*
x ' 3<F
/** A)040n
* @param data GhLgV
* @param j dTyTj|"x{
* @param i (rt DT
*/ ;M8N%
private void insertSort(int[] data, int start, int inc) { vuuID24:
int temp; Ts:dnGR5
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Z4}Yw{=f
} Y[$[0
} FOB9CsMe
} 1>bkVA
m^U\l9LE
} t ?28s/?
9/D+6hJ]:
快速排序: 5'\/gvxIC
a~OCo
package org.rut.util.algorithm.support; INW8Q`[F
,f$A5RN
import org.rut.util.algorithm.SortUtil; ~t<BZu
c G?RisSZ
/** ex $d~
* @author treeroot h(d<':|
* @since 2006-2-2 zdyS"H}
* @version 1.0 6h}f^eJ:K,
*/ ^qiTO`lg
public class QuickSort implements SortUtil.Sort{ LB? evewu
J\_tigd
/* (non-Javadoc) (o{QSk\
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VyCBJK
*/ .zlUN0oe
public void sort(int[] data) { N-3w)23*:
quickSort(data,0,data.length-1); h_?D%b~5
} h\C
private void quickSort(int[] data,int i,int j){ |=l;UqB
int pivotIndex=(i+j)/2; -DX|[70
file://swap >T.U\,om7
SortUtil.swap(data,pivotIndex,j); e.\d7_T+
Hh$D:ZO
int k=partition(data,i-1,j,data[j]); $"J+3mO
SortUtil.swap(data,k,j); fcr\XCG7U
if((k-i)>1) quickSort(data,i,k-1); !K'kkn,h
if((j-k)>1) quickSort(data,k+1,j); +q)
^pCC
(BMFGyE3
} 3?Bq((
/** vwZ2kk!|i
* @param data n1DD+@
* @param i n0@e%=H)I
* @param j W)<us?5Ec5
* @return $4 >K2
*/ FlD
!?
private int partition(int[] data, int l, int r,int pivot) { Wh(V?!^@5
do{ DDN#w<#
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 5Tb93Q@c
SortUtil.swap(data,l,r); }OI;M^5L
} 65=i`!f
while(l SortUtil.swap(data,l,r); N#C,_ k
return l; #`);UAf
} 7O;v5k~iQ
u_e}m>[S
} h<6@&yzp
?t'O\n)M
改进后的快速排序: j9) Z'L
:v
Pzw!
package org.rut.util.algorithm.support; F_zs"ex/
TaG'?
import org.rut.util.algorithm.SortUtil; 3@KX|-
@4T+0&OI10
/** D"bLJj/!
* @author treeroot DWHl,w;[z`
* @since 2006-2-2 /=lrdp!a
* @version 1.0 ;,JCA#
N
*/ puL1A?Y8UM
public class ImprovedQuickSort implements SortUtil.Sort { |0B h
0kQAT#
private static int MAX_STACK_SIZE=4096; /AjGj*O
private static int THRESHOLD=10; Q6RBZucv
/* (non-Javadoc) /tJJ2 =%l
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ca*^U-
*/ #J, `a.
public void sort(int[] data) { QlSZr[^v
int[] stack=new int[MAX_STACK_SIZE]; 9W5vp:G
E{_p&FF
int top=-1; -1:yqF.x
int pivot; $vTU|o>|
int pivotIndex,l,r; v\c.xtjI5x
bMxzJRrNg
stack[++top]=0;
xdXt
stack[++top]=data.length-1; ,l#V eC
c+_F nA
while(top>0){ i=o<\{iV:
int j=stack[top--]; +[V?3Gdb
int i=stack[top--]; @;G}bYq^(I
Tr(w~et
pivotIndex=(i+j)/2; j Bl I^
pivot=data[pivotIndex]; +g/y)] AP
!HY+6!hk
SortUtil.swap(data,pivotIndex,j); 1$q SbQ
x
a7x
2]~-
file://partition 06]J]
l=i-1; 0{@E=}}h
r=j; Hp8)-eT
do{ [9Q2/V;Uk%
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); &f|LjpMCf
SortUtil.swap(data,l,r); kZ[E493bV
} Xi6XV3G
while(l SortUtil.swap(data,l,r); |bO}|X
SortUtil.swap(data,l,j); S$=])^ dur
QApil
if((l-i)>THRESHOLD){ ]p `#KVW
stack[++top]=i; =eDVgOZ)
stack[++top]=l-1; ql2>C.k3L
} 2Af1-z^^K
if((j-l)>THRESHOLD){ 3EI$tP @4
stack[++top]=l+1; wg<DV!GZ
stack[++top]=j; H`9E_[
} >(|T]u](q
W-<C%9O!
} mKvk6OC
file://new InsertSort().sort(data); *<i
{
Mb Q
insertSort(data); vc^qpOk
} SYw>P1
/** va:5pvt2&
* @param data KaauX
m
*/ f]qPxRw
private void insertSort(int[] data) { {3i.U028]
int temp; 0AZ Vc
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); `$AX!,<!G
} H CZ#7Z
} G9 ;X=c
} \{\*h /m
NJI-8qTGI
} #B88w9
b`D
'hf#Q9W5
归并排序: <KoiZ{V
MQG(n +c
package org.rut.util.algorithm.support; -L NJ*?b
?.LS_e_0
import org.rut.util.algorithm.SortUtil; .Lr;{B
:tl*>d~
/** P bj &l0C
* @author treeroot [GyW1-p33w
* @since 2006-2-2 YiTiJ9jf
* @version 1.0 ,_!pUal
*/ ?<ks^2D
public class MergeSort implements SortUtil.Sort{ ey _3ah3x
,ZHIXylZ
/* (non-Javadoc) 7YV}F9h4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `k+ci7;
*/ `1=n H/E
public void sort(int[] data) { bz[U<