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。 Z,QSbw@,7
插入排序: na`8ulN_
Aq*,cOF+
package org.rut.util.algorithm.support; .a_xQ]eQ
G0mvrc-(
import org.rut.util.algorithm.SortUtil; lxh}N,
/** _|C T|q
* @author treeroot *7`amF-
* @since 2006-2-2 "t>WM
* @version 1.0 +'`I]K>
*/ $=ua$R4Z+
public class InsertSort implements SortUtil.Sort{ jQX9KwSP
8eDKN9kq
/* (non-Javadoc) d-ML[^G
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Fu*Qci1Z
*/ KkPr08
public void sort(int[] data) { /zTx+U.\I
int temp; oFDJwOJ'Bj
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); /8[T2Z!
} xN>+!&3%w
} FNHJHuTe
} _OY<Hb3%M
BnPL>11Y
} y"nL9r.,:
Rap =&
冒泡排序: ,/Yo1@U
Lv<)Dur0K
package org.rut.util.algorithm.support; _n12Wx{
FX&)~)
import org.rut.util.algorithm.SortUtil; lfe^_`ij(+
e)Pm{:E
/** 'l41];_
* @author treeroot Vd+5an?
* @since 2006-2-2 &^JYIRn1\
* @version 1.0 ibxtrt=
*/ yiAusl;
public class BubbleSort implements SortUtil.Sort{ Zoyo:vv&
z\6/?5D#v
/* (non-Javadoc) k}908%w
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0$I!\y\
*/ 1g1gu=|Q
public void sort(int[] data) { B[{Ie
G'
int temp; ^SJa/I EZ.
for(int i=0;i for(int j=data.length-1;j>i;j--){ |X0Ys8f
if(data[j] SortUtil.swap(data,j,j-1); I%#
e\
} [+
N 5
} O#@KP"8
} .9u,54t
} a4D4*=!G0
2\L}Ka|v
}
j.vBld
I.L8A|nZ
选择排序: 5:x .<
#7dM %
package org.rut.util.algorithm.support; JrVBd hLr
fH[:S9@
import org.rut.util.algorithm.SortUtil; 7).zed^
2apQ4)6#[H
/** Dwi[aC+k
* @author treeroot :rX/ILAr
* @since 2006-2-2 iT"H%{+~
* @version 1.0 @V5'+^O
*/ G[[NDK
public class SelectionSort implements SortUtil.Sort { K)n0?Q_>
pgU4>tyD
/* -Drm4sTpDb
* (non-Javadoc) lL6qK&;
* :>GT<PPD;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %Q[+bN[/
*/ m[!AOln)
public void sort(int[] data) { zFk@Y
int temp; :fE*fU@
for (int i = 0; i < data.length; i++) { js8GK
int lowIndex = i; "K*+8IO2
for (int j = data.length - 1; j > i; j--) { d8T,33>T
if (data[j] < data[lowIndex]) { D$[/|%3
lowIndex = j; L7&|
} w=H4#a?fc
} Y2Y!^A89
SortUtil.swap(data,i,lowIndex); [j`-R
0Np
} `O/RNMaC
} vXi}B
-?Aa RwZ,
} 59I}
tHo0q<.oX
Shell排序: #O.-/&Z
QU{\ClW/?
package org.rut.util.algorithm.support; P!)k 4n
,.+"10=N.
import org.rut.util.algorithm.SortUtil; @5# RGM)5^
umWZ]8
/** n! (g<"
* @author treeroot ^2PQ75V@.
* @since 2006-2-2 oFeflcSz
* @version 1.0 N#`aVW'{v2
*/ WPM<Qv L
public class ShellSort implements SortUtil.Sort{ fJ3qL#'
YMx
zj
/* (non-Javadoc) ;Q.g[[J/p
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $PQlaivA
*/ *X^__PS]
public void sort(int[] data) { \..(!>,%F
for(int i=data.length/2;i>2;i/=2){ 3*gWcPGe
for(int j=0;j insertSort(data,j,i); {M?!nS6t
} zA/W+j$:
} pPG@_9qf
insertSort(data,0,1); `|^<y.-6
} E4'D4@\W
r4xq%hy
/** B&m?3w
* @param data O:a$ U:
* @param j wzMWuA4vX
* @param i Ye}y_W
*/ VrokEK*qbY
private void insertSort(int[] data, int start, int inc) { }m<)$.x|P
int temp; dMwVgc:
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); XjwTjgL<
} `<>8tZS9"
} A{E0 a:v
} XfxNyZsy&>
Xklp6{VH9
} !P!|U/|c
[VPqI~u5)
快速排序: '}5}wCLA
~^"cq
S(
package org.rut.util.algorithm.support; w
I@
lO\
V_(?mC
import org.rut.util.algorithm.SortUtil; Iq\sf-1E
6iFd[<.*j
/** b['TRYc=:
* @author treeroot ,9#G/nF
* @since 2006-2-2 k-
sbZL
* @version 1.0 {Pg7IYjH
*/ V]PTAhc
public class QuickSort implements SortUtil.Sort{ M{7EFTy!y
_pNUI{De
/* (non-Javadoc) `z3?ET
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kx1-.~)p(z
*/ d~|qx
public void sort(int[] data) { ^ D
B0C
quickSort(data,0,data.length-1); ;<q@>p[
} l{Hi5x'H
private void quickSort(int[] data,int i,int j){ {F
k]X#j
int pivotIndex=(i+j)/2; "MXd!
file://swap )}c$n
SortUtil.swap(data,pivotIndex,j); Vb 4Qt#o
]'_z(s}
int k=partition(data,i-1,j,data[j]); L#u6_`XJ+
SortUtil.swap(data,k,j); _jZDSz|Yb
if((k-i)>1) quickSort(data,i,k-1); -lMC{~h\(S
if((j-k)>1) quickSort(data,k+1,j); nwN<Q\]S
KX<RD|=
} SQ5*?u\
/** }
2)s%
* @param data uB,B%XHj
* @param i <$D)uY K
* @param j FZA8@J|Q4
* @return ;gm){ g
*/ &r<<4J(t
private int partition(int[] data, int l, int r,int pivot) { 8`VMdo9
do{ \hM6 ykY-
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); >uOc#+5M.
SortUtil.swap(data,l,r); v&XG4 &
} 4g1u9Sc0
while(l SortUtil.swap(data,l,r); K)Db3JIIk
return l; CaBTqo
} ooZ7HTP|
$zmES tcm
} v,|;uc+
FcW ?([l
改进后的快速排序: \k1Wh-3
Gcs+@7!b
package org.rut.util.algorithm.support; ~82jL%-u
(rwbF
import org.rut.util.algorithm.SortUtil; +Kq>r|;
h'-TZXs0e1
/** g>im2AD+e
* @author treeroot ^1cqx]>E
* @since 2006-2-2 Z^fF^3x
* @version 1.0 ~hvhT}lE
*/ e-}PJ%!,T
public class ImprovedQuickSort implements SortUtil.Sort { aYj3a;EmU
8:&@MZQ&!
private static int MAX_STACK_SIZE=4096; TVFGonVY
private static int THRESHOLD=10; ,XA;S5FE
/* (non-Javadoc) Pm?6]] 7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )%tf,3
*/ s*l_O*$'
public void sort(int[] data) { 2s{yg%U(
int[] stack=new int[MAX_STACK_SIZE]; R9CAw>s
Ew:JpMR
int top=-1; AN~1E@"
int pivot; `z=MI66Nl
int pivotIndex,l,r; a|7V{pp=M
+u=xBhZ
stack[++top]=0; K5.C*|w
stack[++top]=data.length-1; iuHG9 #n
|\_O8=B%
while(top>0){ 7>ODaj
int j=stack[top--]; zIo))L
int i=stack[top--]; mtOrb9`m
D\`$
pivotIndex=(i+j)/2; W;-Qze\D
pivot=data[pivotIndex]; I'@ }Yjm|
@s
IZ
SortUtil.swap(data,pivotIndex,j); DSjo%Brd-
q$t& *O_
file://partition hsE!3[[
l=i-1; }]s~L9_z['
r=j; W.67, 0m$
do{ ^2??]R&Q
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Xl aNR+
SortUtil.swap(data,l,r); ]52_p[hZ}<
} lT:<ZQyjT
while(l SortUtil.swap(data,l,r); rzTyHK[
SortUtil.swap(data,l,j); 3?geJlD4
7]v-2
*
if((l-i)>THRESHOLD){ wM&G-~9ujk
stack[++top]=i; +.R-a+y3
stack[++top]=l-1; 8p211MQ<
} 3Q ]MT
if((j-l)>THRESHOLD){ q@!:<Ra,){
stack[++top]=l+1; b]Y,& 8}[+
stack[++top]=j; & aLR'*]6
} OKU P
!.J~`Y'd_
} ;% !?dH6
file://new InsertSort().sort(data); Ml3F\ fAW
insertSort(data); ^4fkZh
} >'T%=50YH
/** ;I7Z*'5!
* @param data k
Z3tz?Du
*/ ;4_n:XUgo;
private void insertSort(int[] data) { ;|^fAc~9{r
int temp; *@ o3{0[Z
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 1=D!C lcb
} lR(&Wc\j
} 67g/(4 &
} qQ_B[?+W
=['ijD4TW
} UiSc*_N"
ZV U9 t
归并排序: kU
Flp
+\ySx^vi
package org.rut.util.algorithm.support; bCrB'&^t
2<O8=I _
import org.rut.util.algorithm.SortUtil; Qm-P& g-
gky_]7Av
/** 'I P!)DS
* @author treeroot 5a`}DTB[Co
* @since 2006-2-2 |}}]&:w2
* @version 1.0 btYPp0o~
*/ <