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。 YXi'^GU@
插入排序: %tOGs80_{
V8Fp1?E9S
package org.rut.util.algorithm.support; Biva{'[m
`Q@w*ta)
import org.rut.util.algorithm.SortUtil; DT Cwf
/** JdK'~-L
* @author treeroot r+D ?_Lk
* @since 2006-2-2 5uidi
* @version 1.0 ~v$1@DQ}
*/ Y_gMoo
public class InsertSort implements SortUtil.Sort{ vR)f'+_Nz
3bd(.he2u
/* (non-Javadoc) 0'QX*xfa>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) AVnH|31dC~
*/ 9Ev<t\B
public void sort(int[] data) { v><c@a=[
int temp; @|2L>N
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); p|gzU$FWbk
} %tvP\(]h
} H:k?#7D(
} [qL{w&R
C$+z1z.!
} =<;C5kSD
z]%c6ty
冒泡排序: IrMUw$
s;ivoGe}
package org.rut.util.algorithm.support; JqmxS*_P
\}n\cUy-
import org.rut.util.algorithm.SortUtil; ++=f7yu
_u{z$;
/** "M!]t,?S
* @author treeroot 1`Ig A0V`"
* @since 2006-2-2 j%`%
DQ
* @version 1.0 wU5.t-|`
*/ #>ob1b|
public class BubbleSort implements SortUtil.Sort{ ?]AF?
0/
EEn8]qJC
/* (non-Javadoc) 7@1GSO: Yf
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $ o
}
*/ \V_Tc`
public void sort(int[] data) { H,3WdSL`K
int temp; _yRD*2 !;
for(int i=0;i for(int j=data.length-1;j>i;j--){ Tfz_h~D
if(data[j] SortUtil.swap(data,j,j-1); L+X:M/)
} Due@'
} Xmm)z
} PrKH{nyJk
} =G9I7Y@
kj>!&W57
} Ntt*}|:QV<
idNra#
选择排序: #I"s{*
4Jf9N'
package org.rut.util.algorithm.support; G`Df'Yy
|Zk2]eUO+
import org.rut.util.algorithm.SortUtil; ZYS]Et[Q
9Wv}g"KY0
/** f}t8V% ^E
* @author treeroot &\y`9QpVF
* @since 2006-2-2 -.OZ
* @version 1.0 CUN1.i<pk8
*/ +^DDWVp
public class SelectionSort implements SortUtil.Sort { .Im=-#EN
~Z~V:~
/* 2}n7f7[/b
* (non-Javadoc) mt]^d;E
* #\8"d
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G1fC'6$3
*/ =<%[P9y
public void sort(int[] data) { !pZ<{|cH
int temp; al" =ld(
for (int i = 0; i < data.length; i++) { ph$vP;}
int lowIndex = i; FuM:~jv
for (int j = data.length - 1; j > i; j--) { v1rTl5H
if (data[j] < data[lowIndex]) { 4a=QTq0p
lowIndex = j; E)`:sSd9
} yv|`A2@9
} #U(kK(uO
SortUtil.swap(data,i,lowIndex); 1\a.o[g3e
} Ew JNpecX
} <L+1
&H
y_'6bpb
} 2){O&8 A
.JOZ2QWm<
Shell排序: $XI.`L *g
[MuZ^'dR
package org.rut.util.algorithm.support; _= cU2
nMK$&h,{
import org.rut.util.algorithm.SortUtil; iB|htH'T
uBl&{$<
/** #W&o]FAA3y
* @author treeroot guG&3{&\s
* @since 2006-2-2 )8!*,e=4
* @version 1.0 I^n DO\m <
*/ :(\JY?+w
public class ShellSort implements SortUtil.Sort{ @QMy!y_K~m
,+5:}hR+
/* (non-Javadoc) d%UzQ*s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Re2&qxE
*/ !S%0#d2
public void sort(int[] data) { zW\s{
for(int i=data.length/2;i>2;i/=2){ Y1ks'=c>
for(int j=0;j insertSort(data,j,i); `^] D;RfE
} S@'%dN6e
} !B92W
insertSort(data,0,1); i),bAU!+m
} \%7fm#z6
O}w%$ mq
/** ):_@i
* @param data RRXp9{x`
* @param j 14"+ctq
* @param i $}AbR:z
*/ Se_]=>WI
private void insertSort(int[] data, int start, int inc) { J?dLI_{<
int temp; hbg$u$1`,
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 2kt0Rxg
} x5CMP%}d
} &=x4M]t9L
} LP=y$B
L$i:~6
} c6lCF &
WQ}wQ:]
快速排序: $4^SWT.
5.*,IedY
package org.rut.util.algorithm.support; cS'{h
Fuzb4Df
import org.rut.util.algorithm.SortUtil; haY]gmC
/y$ Fw9R;
/** ``P9fd
* @author treeroot 33EF/k3vW
* @since 2006-2-2 h=0a9vIXF
* @version 1.0 x1?mE)n]
*/ w|6/ i/X
public class QuickSort implements SortUtil.Sort{ )AxD|A
p_g`f9q6D
/* (non-Javadoc) BvsSrse
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'Y#'ozSQv
*/ p<{P#?4 g
public void sort(int[] data) { [{Jo(X
quickSort(data,0,data.length-1); &
Wod
} eb}P/
private void quickSort(int[] data,int i,int j){ lKw-C[
int pivotIndex=(i+j)/2; PMpq>$6b7
file://swap YR*gOTD
SortUtil.swap(data,pivotIndex,j); y^,Q M[ &
Hf@4p'
int k=partition(data,i-1,j,data[j]); gu!!}pwV9
SortUtil.swap(data,k,j); 2
4+
if((k-i)>1) quickSort(data,i,k-1); W~0rSVD$<z
if((j-k)>1) quickSort(data,k+1,j); K^U="
D>[Sib/@
} O7Jux-E1C
/** Xg96I:r'p
* @param data 4hy-M>!D|
* @param i 0-S.G38{
* @param j jwT` Z
* @return j(Lz& *4
*/ `VKFA<T
private int partition(int[] data, int l, int r,int pivot) { Lo%vG{yTr
do{ YD'gyP4
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); <@"rI>=
SortUtil.swap(data,l,r); (<r)xkn
} xy7A^7Li
while(l SortUtil.swap(data,l,r); I09 W=
return l; Tj#S')s8
} 2+rT .GFc
)0-A;X2
} [j-?)
?@9v+Am!
改进后的快速排序: ANFes*8j
AQUAQZc
package org.rut.util.algorithm.support; <rj'xv
}bv+^#
import org.rut.util.algorithm.SortUtil; SjB"#E)
@W>@6E
/** c$!?4z_.
* @author treeroot Q38+`EhLA
* @since 2006-2-2 P|<V0
Vs.
* @version 1.0 Ze~P6
*/ UHZ&7jfl
public class ImprovedQuickSort implements SortUtil.Sort { Q;$k?G=l
`!vqT 3p,
private static int MAX_STACK_SIZE=4096; YWK0.F,8a
private static int THRESHOLD=10; pPBXUu'
/* (non-Javadoc) {&n- @$?
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F<,pAxl~@
*/ Xe%J{
public void sort(int[] data) { #{}?=/nJ~-
int[] stack=new int[MAX_STACK_SIZE]; oZiW4z*Wh
v1,#7sAW'
int top=-1; 9jTBLp-i#N
int pivot; t2o{=!$WH
int pivotIndex,l,r; x#EE_i/W
$&as5z8
stack[++top]=0; |reA`&<q
stack[++top]=data.length-1; ayA;6Qt
Y1-dpML
while(top>0){ i wgt\ux.
int j=stack[top--]; o}v<~v(
int i=stack[top--]; $Q/@5f'T`9
eP @#I^_
pivotIndex=(i+j)/2; jw:z2:0~
pivot=data[pivotIndex]; .t_t)'L
GQtNk<?$I
SortUtil.swap(data,pivotIndex,j); ~.W]x~X$
IE`3I#v
file://partition =y][j+WH
l=i-1; W~
~'
r=j; 7%Y`j/
do{ .G[/4h :.
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ^aSb~lce
SortUtil.swap(data,l,r); VvyRZMR
} 0F |t@?S
while(l SortUtil.swap(data,l,r); `j>5W<5q\
SortUtil.swap(data,l,j); SY+0~5E
MT-Tt
if((l-i)>THRESHOLD){ L]kBY2c
stack[++top]=i; *D?_,s
stack[++top]=l-1; m.K cTM%j
} ?P'$Vxl
if((j-l)>THRESHOLD){ lp
*GJP]T
stack[++top]=l+1; qdix@@
stack[++top]=j; f!x9%
} 1B4Qj`:+0
x(Bt[=,K3
} qq5X3K2&
file://new InsertSort().sort(data); Pf[E..HF*d
insertSort(data); XDY]LAV
} 1CB&z@
/** aJ+V]WmA
* @param data J~2SGXH)^?
*/ 5%I3eL%s
private void insertSort(int[] data) { N{v)pu.
int temp; !/}3/iU
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); NIs 7v
} "W7|Xp
} TPN+jK
} cyCh^- <l@
h$02#(RHJ
} iww/ s
aFTWzz
归并排序: O52/fGt
g6,D Bkv2
package org.rut.util.algorithm.support; s)E \
<w9~T TS
import org.rut.util.algorithm.SortUtil; MKBDWLCB
yqx5_}
/** +x2JC' -H
* @author treeroot UY(T>4H+h
* @since 2006-2-2 \qG?'Iy
* @version 1.0 <