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。 B^qB6:\t
插入排序: UOu&sg*o2B
OU+*@2")t
package org.rut.util.algorithm.support; }lY-_y
j Hzy1P{?
import org.rut.util.algorithm.SortUtil; &qC>*X.
/**
Bb o*
* @author treeroot y6s$.93
* @since 2006-2-2 gXQ)\MY
* @version 1.0 . FruI#99
*/ Q4x71*vy
public class InsertSort implements SortUtil.Sort{ ovohl<o\
zM'-2,
/* (non-Javadoc) ~RJg.9V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) BO_^3Me*
*/ joG>=o
public void sort(int[] data) { NplSkv
int temp; !9
F+uc5
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); U}7[8&k1
}
pGFocw
} N7_Co;#(zK
} Xx^c?6YM
lDpi1]2
} E=E<l?ob
:o:??tqw
冒泡排序: *"
)[Srbg
Yem\`; *
package org.rut.util.algorithm.support; )\(pDn$W
G$j8I~E@
import org.rut.util.algorithm.SortUtil; kr?|>6?
A3n"zxU
/** 2S;zze7)
* @author treeroot p5KNqqZZ
* @since 2006-2-2 *v9G#[gG
* @version 1.0 [>0r'-kI
*/ +M*a.ra0OF
public class BubbleSort implements SortUtil.Sort{ 8M|Q^VeT,1
,aJrN!fzU
/* (non-Javadoc) F)@<ZE
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \9p;md`
*/ 6yb<4@LOb
public void sort(int[] data) { RB"rx\u7K
int temp; Ie~~L U
for(int i=0;i for(int j=data.length-1;j>i;j--){ #q- _
if(data[j] SortUtil.swap(data,j,j-1); *E]\l+]J
} 2KEww3.{
} - \QtE}|4
} `FwAlYJK
} krA))cP
U*@_T 3N
} 7d)aDc*TjW
`g=~u{0
选择排序: *pMA
V[^
!xI![N^
package org.rut.util.algorithm.support; =Vs<DO{|4q
{aSq3C<r
import org.rut.util.algorithm.SortUtil; rXPXO=F1/
{>Px.%[<
/** 5*AKl< Jl
* @author treeroot #vSI_rt9I
* @since 2006-2-2 `9-Zg??8r
* @version 1.0 Ce:ds%
*/ <Va>5R_d<
public class SelectionSort implements SortUtil.Sort { (
~>Q2DS
`Nn?G
/* gm DC,"Y<
* (non-Javadoc) wu')Q/v
* 7L*`nU|h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3fPv71NVtt
*/ v,0D GR~
public void sort(int[] data) { wLbngO=VG
int temp; =Ug_1w
for (int i = 0; i < data.length; i++) { `2PT 8UM
int lowIndex = i; >=H8>X
for (int j = data.length - 1; j > i; j--) { 7 SZR#L
if (data[j] < data[lowIndex]) { :+Kesa:E
lowIndex = j; 5*$Zfuf
} 2e"}5b5
} 9x!y.gx
SortUtil.swap(data,i,lowIndex); %u}sVRJ
} v knFtpx
} Vd4osBu{fY
;"Y6&YP<
} &UR/Txnu
/`> P|J
Shell排序: 3:Wr)>l}#
=HHg:"
package org.rut.util.algorithm.support; _=5ZB_I
Kdm5O@tq
import org.rut.util.algorithm.SortUtil; &u-Bu;G.e
k 9rnT)YU
/** $nn5;11@gY
* @author treeroot D,a%Je-r,
* @since 2006-2-2 IJ;*N
* @version 1.0 =Qrz|$_rv
*/ OB22P%
public class ShellSort implements SortUtil.Sort{ ?sYjFiE
&v,p_'k
/* (non-Javadoc) Hea<!zPH
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7g9 ^Jn
*/ E6M: ^p*<
public void sort(int[] data) { _ GSw\r
for(int i=data.length/2;i>2;i/=2){ N/BU%c
ph+
for(int j=0;j insertSort(data,j,i); gN~y6c:N
} H%]ch6C
} N &=2 /
insertSort(data,0,1); |U
$-d^ZJ
} tpONSRY
<>s\tJ
/** sdQv:nd'R
* @param data 1#"Q' ,7
* @param j JB@VP{
* @param i U I C? S
*/ ,~(}lvqVH
private void insertSort(int[] data, int start, int inc) { G`"Cqs<
int temp; <>_WdAOuD
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); QE2^.|d{
} -QDgr`%5
} 6/ipdi[
_
} \DK*>
k
2]=I'U<E!
} @~3c"q;i7
dRm'$
G9
快速排序: j*d~h$[k
^~ $&
package org.rut.util.algorithm.support; "|`9{/]
X>7]g670@
import org.rut.util.algorithm.SortUtil; \*aLyyy3
<|3v@
/** /g'-*:a
* @author treeroot <z2mNq
* @since 2006-2-2 F*VMS
* @version 1.0 vp-7>Wj
*/ [oLQd-+
public class QuickSort implements SortUtil.Sort{ =hIT?Z6A
^]&{"!
/* (non-Javadoc) I?Fa
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +t4m\/y
*/ DAHf&/JK
public void sort(int[] data) { vqMk)htIz
quickSort(data,0,data.length-1); 5KE%@,k k
} M l?)Sc"\7
private void quickSort(int[] data,int i,int j){ PRC)GP&q
int pivotIndex=(i+j)/2; es+_]:7B9
file://swap B@inH]wq
SortUtil.swap(data,pivotIndex,j); wS*CcIwj
cu!bg+,zl
int k=partition(data,i-1,j,data[j]); 9Pk3}f)a
SortUtil.swap(data,k,j); i03}f%JnuO
if((k-i)>1) quickSort(data,i,k-1); ^jjJM| a
if((j-k)>1) quickSort(data,k+1,j); pm@Z[g
x*8f3^ wE
} E(kpK5h{
/** SoU'r]k1x
* @param data Pl&`&N;
* @param i =v$s+`cP
* @param j YzW7;U
S
* @return "UGj4^1f
*/ =^y{@[p`(
private int partition(int[] data, int l, int r,int pivot) { Z !25xqNCd
do{ p6*a1^lU6
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); U9.=Ik
SortUtil.swap(data,l,r); &d3 '{~:
} I@Z*Nu1L
while(l SortUtil.swap(data,l,r); np\2sa`
return l; PJ'lZu8?x
} V,"iMo
3(})uV
} ivz?-X4]
w<>6>w@GZ
改进后的快速排序: wU)5Evp[
S{i@=:
package org.rut.util.algorithm.support; bSR+yr'?
J:Y|O-S!
import org.rut.util.algorithm.SortUtil; :#:O(K1PW
pUMB)(<k
/** w+q;dc8
* @author treeroot agm5D/H]:
* @since 2006-2-2 0!,gT H>
* @version 1.0 a05:iFoJ
*/ *R\/#Y|
public class ImprovedQuickSort implements SortUtil.Sort { - b\V(@5
3p
1EScH
private static int MAX_STACK_SIZE=4096; 6(^Upk=59
private static int THRESHOLD=10; )):22}I#
/* (non-Javadoc) GHC?Tp
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (<R\
*/ |5B,cB_
public void sort(int[] data) { FWpN:|X BS
int[] stack=new int[MAX_STACK_SIZE]; 4:e q{n
Y:!/4GF
int top=-1; 1;kG[z=A
int pivot; PBww
int pivotIndex,l,r; pY!dG-;
|8qK%n f}
stack[++top]=0; u~- fK'/!|
stack[++top]=data.length-1; QB3d7e)8>
}d3N`TT
while(top>0){ t#pqXY/;D
int j=stack[top--]; eIUuq&(
int i=stack[top--]; i=X*
w^rb|mKo
pivotIndex=(i+j)/2; |;U=YRi
pivot=data[pivotIndex]; N[x@j)w-`
YUVc9PV)Ws
SortUtil.swap(data,pivotIndex,j); gUH'DS]{
RnA&-\|*
file://partition Bw]L2=d
l=i-1; 9p\Hx#^
r=j; MHnf\|DX
do{ 5
2@udp
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); nl-t<#z[
SortUtil.swap(data,l,r); Q_]!an(
} $dZ>bXUw:
while(l SortUtil.swap(data,l,r); 5} MlZp
SortUtil.swap(data,l,j); N{V5 D
L>~@9a\jO
if((l-i)>THRESHOLD){ UC+7-y,
stack[++top]=i; mU3Y)
stack[++top]=l-1; h%1~v$W`
} N5f0|U&
if((j-l)>THRESHOLD){ eC^0I78x
stack[++top]=l+1; v(Bp1~PPZM
stack[++top]=j; 6}i&6@Snq?
} 3r-Vx P 5n
[}p
} _/jUs_W
file://new InsertSort().sort(data); Ku0H?qft(
insertSort(data); .kbr?N,'
} 0/SC
/** L*
khj 3;
* @param data i{|lsd(+
*/ %uz|NRB=
private void insertSort(int[] data) { AFINm%\/0
int temp; ~X~xE]1o|U
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); iz9\D*or
} }c35FM,
} _z<Y#mik
} cVB|sYdf
k_K,J6_)
} e+F}9HR7
M$&WM{Pr^
归并排序: Q3BLL`W~
9Q C"Od9H
package org.rut.util.algorithm.support; Y/^[qD
|.Nr.4Yp
import org.rut.util.algorithm.SortUtil; rw5#e.~V
JtYYT/PB
/** 1!>bhH}{D
* @author treeroot -}_cO|kk
* @since 2006-2-2 'NT#(m%
* @version 1.0 @)OnIQN~
*/ cyGN3t9`.
public class MergeSort implements SortUtil.Sort{ Tsm1C#6 Y*
JNxW6 cK
/* (non-Javadoc) g,n-s+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^e aRgNz
*/ 5:*5j@/S
public void sort(int[] data) { H5AK n*'7
int[] temp=new int[data.length]; Avs7(-L+s
mergeSort(data,temp,0,data.length-1); 8S.')<-f
} W+d9cM=
C(F1VS
private void mergeSort(int[] data,int[] temp,int l,int r){ J0?$v6S
int mid=(l+r)/2; *=$[}!YG
if(l==r) return ; /'&.aGW4%
mergeSort(data,temp,l,mid); *Nvy+V
mergeSort(data,temp,mid+1,r); k_*XJ <S!Y
for(int i=l;i<=r;i++){ VO.-.
temp=data; Ynv9&P
} 2!{_/@I\Y
int i1=l; 'GV&]
int i2=mid+1; >vD['XN,
for(int cur=l;cur<=r;cur++){ E6'8Zb
if(i1==mid+1) _l#3]#
data[cur]=temp[i2++]; ERp:EZ'
else if(i2>r) oF%^QT"R
data[cur]=temp[i1++]; lnC!g
else if(temp[i1] data[cur]=temp[i1++]; }yx=(+jP
else @@xO+$6
data[cur]=temp[i2++]; Fa sI'Ulk
} U;';"9C2>
} `"xk,fVYd
\3t,|%v
} :k WZSN8.D
=w',-+@
改进后的归并排序: WdTbt
\yih 1Om>~
package org.rut.util.algorithm.support; U9<_6Bsd
/Y;+PAy
import org.rut.util.algorithm.SortUtil; n\Z^K
tv 4s12&
/**
I6K7!+;2
* @author treeroot ,pDp>-vI%
* @since 2006-2-2 3
R5%N
~
* @version 1.0 Ff[H>Lp~
*/ u{g]gA8s
public class ImprovedMergeSort implements SortUtil.Sort { :FoOQ[Q
~8jThi
U
private static final int THRESHOLD = 10; KH>Sc3p
"[awmZ:wo
/* =:4'
* (non-Javadoc) *4|9&PNLE
* W.yV/fu
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vx04h ~
*/ &e%{k@
public void sort(int[] data) { t*o7,
int[] temp=new int[data.length]; r> Fec
mergeSort(data,temp,0,data.length-1); o{9?:*?7
} Z -pyFK\
gb]hOB7g
private void mergeSort(int[] data, int[] temp, int l, int r) { xh{mca>?G
int i, j, k; aN>U. SB
int mid = (l + r) / 2; $|Q".dD
if (l == r) S#P+B*v
return; ^Lsc`<xC
if ((mid - l) >= THRESHOLD) *GCA6X
mergeSort(data, temp, l, mid); |tG05 +M
else D4AEZgC F,
insertSort(data, l, mid - l + 1); ~@%(RMJm&
if ((r - mid) > THRESHOLD) lN);~|IOv7
mergeSort(data, temp, mid + 1, r); jz
%;4e~t
else p9/bzT34.
insertSort(data, mid + 1, r - mid); BD hLz
!$D&6M|C8l
for (i = l; i <= mid; i++) { w|&,I4["
temp = data; Xf6fH O
} 40 Au9o
for (j = 1; j <= r - mid; j++) { UE"7
temp[r - j + 1] = data[j + mid]; HvAE,0N
} 2y^Uk,g
int a = temp[l]; M,&tA1CH
int b = temp[r]; ;
Zh9^0
for (i = l, j = r, k = l; k <= r; k++) { cE^kpnVq|<
if (a < b) { :[L{KFQU
data[k] = temp[i++]; ~@xT]D!BQ
a = temp; S2Zx &D/_
} else { U%Dit
data[k] = temp[j--]; j -#E?&2
b = temp[j]; vZ:G8K)o(
} w-J"zC
} : @s8?eg
} +:}kZDl@ X
T:c7@^=
/** YQN.Ohtv*F
* @param data Z#CxQ D%\
* @param l /d[Mss
* @param i 7`Qde!+C
*/ >+L7k^[,0
private void insertSort(int[] data, int start, int len) { |Es0[cU
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); YFG-U-t3
} bi+9R-=&
} KCE=|*6::|
} 5n:nZ_D
} !zU/Hq{wcK
xf'LR[M
堆排序: miwf&b
:
-E,
package org.rut.util.algorithm.support; wc"9A~
u',b1 3g(
import org.rut.util.algorithm.SortUtil; 5;}2[3}[
M
Z2^@It
/** Ys-^7
y_
* @author treeroot '[%jjUU
* @since 2006-2-2 ?qy*s3j'M
* @version 1.0 [@ILc*2O
*/ N5yJ'i~,M
public class HeapSort implements SortUtil.Sort{ >A<Df
cbfDB^_
/* (non-Javadoc) ;;M"hI3@
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;"D~W#0-v
*/ >8%M*-=p
public void sort(int[] data) { Ha?G=X
MaxHeap h=new MaxHeap(); lHcA j{6
h.init(data); <&`:&