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。 zO 6Sl[)
插入排序: W7.QK/@
l:sfM`Z^[
package org.rut.util.algorithm.support; k<%y+v
(^^}Ke{J
import org.rut.util.algorithm.SortUtil; oC(.u ?
/** RHuc#b0
* @author treeroot lt#3&@<v
* @since 2006-2-2 cd)}a_9
* @version 1.0 {$v>3FG
*/ ?cgb3^R'
public class InsertSort implements SortUtil.Sort{ 29f4[V X
/^, /o
/* (non-Javadoc) |/!RN[<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C.+:FY.H
*/ HLl"=m1/>
public void sort(int[] data) { =_`cY^ib+
int temp; 8lF:70wia
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ^\3z$ntF
} 8%^W<.Y
} r&nEM6
} -p f9Wk
x.>[A^
} 5hp)Z7
MDfC%2Q
冒泡排序:
u{|^5%)
v\Zq=,+
package org.rut.util.algorithm.support; tdnd~ WSR
{Ty?OZ
import org.rut.util.algorithm.SortUtil; 3s Mmg`
3 /LW6W|
/** |JTDwmR
* @author treeroot Tywrh9[
* @since 2006-2-2 {-L}YX"Bh
* @version 1.0 ~0Mw\p%}
*/ DcEGIaW
public class BubbleSort implements SortUtil.Sort{ )4
'yI*
_6C,w`[[6
/* (non-Javadoc) T_~xDQ` v
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '
y_2"
*/ =v~$&@
public void sort(int[] data) { ie<m)
int temp; Vet<,;Te
for(int i=0;i for(int j=data.length-1;j>i;j--){ Lq{/r+tt/
if(data[j] SortUtil.swap(data,j,j-1); _"- ,ia[D
} D~@lpcI
} Ir3|PehB
} \,yg@R
} opqf)C
r+}<]?aT>-
} Px?0)^"2
WsR4)U/]v
选择排序: -d6PXf5
]0;,M
package org.rut.util.algorithm.support; wO"ezQ
=+VI{~.|}
import org.rut.util.algorithm.SortUtil; #,rP1#?
K=!?gd!Vw
/** u1/q8'RW
* @author treeroot !tuK.?q|l
* @since 2006-2-2 vXibg
* @version 1.0 j4Y] 8
*/ qX*Xo[Xp
public class SelectionSort implements SortUtil.Sort { 9v76A~~
mH!\]fmR~
/* o.>Yj)U
* (non-Javadoc) =<z~OE'lV
* _)^`+{N<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;e\K8*o
*/ qF4DX$$<
public void sort(int[] data) { _H$Z}2g<z
int temp; )Tad]Hd"W
for (int i = 0; i < data.length; i++) { c/`Rv{*'o
int lowIndex = i; mv1|oFVW
for (int j = data.length - 1; j > i; j--) { Kg#s<# h
if (data[j] < data[lowIndex]) { :w:ql/?X
lowIndex = j; [3io6XG x@
} anFl:=
} qgsw8O&
SortUtil.swap(data,i,lowIndex); +!<{80w
} jx8hh}C
} 8YkCTJfBGu
i-Ri;E
} mJS-x-@
<W88;d33r=
Shell排序: Fo&ecWhw
kud2O>>
package org.rut.util.algorithm.support; <&=3g/Y
gYfOa`k
import org.rut.util.algorithm.SortUtil; ^uIKwql
;V)94YT
/** 0coRar?+b
* @author treeroot dsA::jR0P6
* @since 2006-2-2 <F+9#-
* @version 1.0 Vvk\$'
*/ T1fX[R ^\
public class ShellSort implements SortUtil.Sort{ \h7XdmA]~
O]\eMM&
/* (non-Javadoc) 60%EmX
;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /n#t.XJY*
*/ K]dX5vJw'
public void sort(int[] data) { jp+#N
pH
for(int i=data.length/2;i>2;i/=2){ <^B!.zQ
for(int j=0;j insertSort(data,j,i); K<7 Db4H
} _ +A$6l
} 8^"P'XQ
insertSort(data,0,1); iuWw(dJk
} ^HNccr
d15E$?ZLH
/** BG2Z'WOH
* @param data v*EErQML8b
* @param j _@ @"'
* @param i KS(Ms*k;'
*/ u^&,~n@n7
private void insertSort(int[] data, int start, int inc) { 4L[-[{2
int temp; 0+"P1/
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 9NcC.}#-5
} R,[+9U|4V
} >)S'`e4Gu
} ekO*(vQ~
ru1FJ{n
} RaY=~g
8:t1%O$
快速排序: %'<m[wf^ o
kNTxYJ
package org.rut.util.algorithm.support; "Yf?33UNZ
Qv:J#uVw?O
import org.rut.util.algorithm.SortUtil; |Xa|%f
K6z-brvw"
/** b. oA}XP
* @author treeroot 9A1w5|X
* @since 2006-2-2 Se&%Dr3Nv
* @version 1.0 AC/8 2$
*/ )ia$pes
public class QuickSort implements SortUtil.Sort{ WJ(E3bb
Vr%!rQ
/* (non-Javadoc) ]e]l08
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fIcra
*/ ShRkL<
public void sort(int[] data) { ];G$~[
quickSort(data,0,data.length-1); z3p#`
} '8bT9
private void quickSort(int[] data,int i,int j){ RBM4_L
int pivotIndex=(i+j)/2; Bc2PF;n
file://swap *`.4M)Ym~
SortUtil.swap(data,pivotIndex,j); LjA>H>8%[
&y=~:1&f
int k=partition(data,i-1,j,data[j]); pM'AhzS
SortUtil.swap(data,k,j); Og3bV_,"
if((k-i)>1) quickSort(data,i,k-1); (_O_zu8_
if((j-k)>1) quickSort(data,k+1,j); 5T;,wQ<
cE0Kvqe`
} $2\k| @)s
/** YC0FXN V
* @param data } ~#^FFe
* @param i ;R.l?Bg
* @param j #y%?A;
* @return JK9}Kb};
*/ YKs^aQm#
private int partition(int[] data, int l, int r,int pivot) { :i ft{XR'
do{ gAgP("
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ZICcZG_y
SortUtil.swap(data,l,r); j(maj
} #s'
while(l SortUtil.swap(data,l,r); fr<, LC.
return l; 9K
F`9Y
} $di8#O*
E-q*u(IW
} z!6:Dt6^
l+1GA0'JP
改进后的快速排序: ,ZLg=
7`f',ZK%
package org.rut.util.algorithm.support; )#l,RJ(
@7aSq-(_l*
import org.rut.util.algorithm.SortUtil; _ s[v:c
~
-hH#5
/** *qm@;!C
* @author treeroot s8<)lO<SV.
* @since 2006-2-2
x=(cQmQ
* @version 1.0 *m[ow s
*/ <C9_5Ce~
public class ImprovedQuickSort implements SortUtil.Sort { 8L7ZWw
d
i@M^9|Gh
private static int MAX_STACK_SIZE=4096; D>Qc/+
private static int THRESHOLD=10; ;eRYgC
/* (non-Javadoc) "*E%?MG
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y SE6PG
*/ 7!E?(3$#"
public void sort(int[] data) { U:.
int[] stack=new int[MAX_STACK_SIZE]; @n##.th
/hMD
Me
int top=-1; s) vHLf4 T
int pivot; 6M`N| %
int pivotIndex,l,r; ;9R;D,Gk!
2 nRL;[L*.
stack[++top]=0;
B)M& FO
stack[++top]=data.length-1; $}/ !mXI5
bLysUj5[5
while(top>0){ 2$O@T]
int j=stack[top--]; BEzF'<Z
int i=stack[top--]; 93npzpge
uII:Y{G
pivotIndex=(i+j)/2; 0#rv.rJ{
pivot=data[pivotIndex]; 3:h9cO/9
-B-nTS`
SortUtil.swap(data,pivotIndex,j); B|Rnh;B-
2I#4jy/g
file://partition ]jz%])SzH
l=i-1; [1Yx#t
r=j; -PSI^%TR#
do{ w8Mi:;6
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); XKU+'Tz
SortUtil.swap(data,l,r); qi\!<clv
} ^vjN$JB
while(l SortUtil.swap(data,l,r); R;_U BQ)
SortUtil.swap(data,l,j); ,rp-`E5ap
YEWHr>&Z
if((l-i)>THRESHOLD){ w-%H\+J
stack[++top]=i; ]r{-K63P{!
stack[++top]=l-1; <z*SO
a
} w$cic
if((j-l)>THRESHOLD){ oO4
Wwi
stack[++top]=l+1; 0omg%1vt<A
stack[++top]=j; !ACWv*pW
} <ealt
K`nI$l7hg
} j3bTa|UdT
file://new InsertSort().sort(data); %7PprN0>
insertSort(data); 6.Nu[-?
} uLsGb=m%b
/** ,HEx9*E/s
* @param data s9<fPv0w
*/ AT:T%a:G?
private void insertSort(int[] data) { d))(hk:
int temp; .3%eSbt0
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); an 3"y6.8
} @83h/Wcxd
} xP.B,1\X
} ,x?H]a)
bc"E=z
} }TZ5/zn.Dw
B8^tIq
归并排序: 3:i4DBp,i
UlHRA[SCv
package org.rut.util.algorithm.support; zv]-(<B
0}YR=
import org.rut.util.algorithm.SortUtil; Rla4XN=mf
&X
+Qi
/** pCz;km
* @author treeroot "msCiqF{z
* @since 2006-2-2 x=yU
}lsV
* @version 1.0 3,bA&c3
*/ oAX -Sg-/$
public class MergeSort implements SortUtil.Sort{
';x .ry
/LM*nN$%
/* (non-Javadoc) "3{xa;c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .$DB\jJXjV
*/ ,|_ewye
public void sort(int[] data) { :".:Wd
int[] temp=new int[data.length]; &+-ZXN
mergeSort(data,temp,0,data.length-1); S<f&?\wK=v
} w~EXO;L2
"aN<3b
private void mergeSort(int[] data,int[] temp,int l,int r){ GdavCwJ
int mid=(l+r)/2; aW7{T6.,
if(l==r) return ; )^uLZMNaI
mergeSort(data,temp,l,mid); $jb 0/
mergeSort(data,temp,mid+1,r); #D3e\(
for(int i=l;i<=r;i++){ Hw5\~!FX
temp=data; e0HG"z4
} rm>;B
*;
int i1=l; v#.FK:u}
int i2=mid+1; *$x/(!UE
for(int cur=l;cur<=r;cur++){ >\K<q>*
if(i1==mid+1) /d5_-AB(v
data[cur]=temp[i2++]; !Y-MUZ$f
else if(i2>r) kwdmw_
data[cur]=temp[i1++]; ^ 3LM%B
else if(temp[i1] data[cur]=temp[i1++]; $=$I^hV
else Z9ciS";L
data[cur]=temp[i2++]; v@;:aN
} j-ugsV`2=*
} C8cB Lsa[J
{a9Z<P
} ??{ (.`}R~
-8qLshQ
改进后的归并排序: 9Ps:]Kp!vN
]DdD
FLM
package org.rut.util.algorithm.support; 4x=rew>Ew
Mk=
tS+
import org.rut.util.algorithm.SortUtil; /a6\G.C5
*}3e'0`
/** jK\2y|&&c
* @author treeroot K;G1cFFyG
* @since 2006-2-2 f3U#|(%(*
* @version 1.0 ;C-5R U
V
*/ bslv_OxJ
public class ImprovedMergeSort implements SortUtil.Sort { jHBn^Nly
mwCNfwb:
private static final int THRESHOLD = 10; -B$oq8)n*
{$>*~.Wu
/* OekcU%C
* (non-Javadoc) Kwfrh?
* WUAjb,eo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JiP]FJ;
*/ &6,GX7]Fo
public void sort(int[] data) { *%'4.He7V
int[] temp=new int[data.length]; #O^H?3Q3
mergeSort(data,temp,0,data.length-1); [X)+(-J
} A,MRK#1u
b,7:=-D
private void mergeSort(int[] data, int[] temp, int l, int r) { N{iBVl
int i, j, k; p*W4^2(d
int mid = (l + r) / 2; 5JDqSz{
if (l == r) =ALy.^J=
return; JrseU6N
if ((mid - l) >= THRESHOLD) |]DZc/
mergeSort(data, temp, l, mid); E3.=|]W'
else JJ,Fh
.
insertSort(data, l, mid - l + 1); 0F`@/C1y55
if ((r - mid) > THRESHOLD) E@"+w,x)
mergeSort(data, temp, mid + 1, r); AZorz Q]s
else ?AyG!F
insertSort(data, mid + 1, r - mid); ' rHkJ
Iqe4O~)
for (i = l; i <= mid; i++) { %B3E9<9>U
temp = data; ;e()|
} 88d0`6K-9
for (j = 1; j <= r - mid; j++) { y ']>J+b0
temp[r - j + 1] = data[j + mid]; wlC_rRj~
} qDhz|a#
int a = temp[l]; 1;SW%\M
int b = temp[r]; *f.eyg#
for (i = l, j = r, k = l; k <= r; k++) { !y'LKze+G
if (a < b) { 0 '~Jr\4
data[k] = temp[i++]; Pp:(PoH
a = temp; ?;+=bKw0
} else { sL~TV([6/
data[k] = temp[j--]; Hm`9M.5b
b = temp[j]; oj$D3
} /`D]m?
} c>!>D7:7
} >t'/(y
]0xbvJ8oK
/** z>vzXM
* @param data Ws4aCH 1
* @param l W )q^@6[d
* @param i c_O|?1
*/ QgEG%YqB
private void insertSort(int[] data, int start, int len) { bL!NT}y`
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); f'aUo|^?
} "2
ma]Ps
} R"!.|fH6
} :Py/d6KK
} L/<^uO1
{08UBnR
堆排序: iF{eGi
9/{+,RpC
package org.rut.util.algorithm.support; ai`fP{WlX
f<uLbJ6
import org.rut.util.algorithm.SortUtil; g!V;*[
2z:4\Y5
/** ~{*FjZ`h
* @author treeroot D^04b<O<x
* @since 2006-2-2 f 7y1V(t
* @version 1.0 ^;c!)0Q<Z
*/ k:Uyez
public class HeapSort implements SortUtil.Sort{ p44d&9
6fY(u7m|p
/* (non-Javadoc) hqFK2
lR
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g*b%
*/ hBLJKSv
public void sort(int[] data) { EfcoJgX
MaxHeap h=new MaxHeap(); b3H~a2"d
h.init(data); b@Ik
c<
for(int i=0;i h.remove(); 6t*pV
[
System.arraycopy(h.queue,1,data,0,data.length); -/B}XNW
} E%3WJ%A
lK9us
private static class MaxHeap{ $[VKM|Zjw
><TuL7+
void init(int[] data){ c|:H/Y2n|
this.queue=new int[data.length+1]; MH?|>6
for(int i=0;i queue[++size]=data; PD$ay^Y
fixUp(size); V~&P<=8;Wl
} hh{4r} |
} G! zV=p
#v=hiL
private int size=0; ]"q)X{G(+
Q68&CO(rE
private int[] queue; W~POS'1
1V+a;-?
public int get() { v~?d7p{
return queue[1]; z\oq b)a
} tcwE.>5O
%^p1ax
public void remove() { &tj0Z:
SortUtil.swap(queue,1,size--); n9050&_S
fixDown(1); ?<#6=
} rfkk3oy
file://fixdown dum! AO
private void fixDown(int k) { 0 4x[@f`
int j; C^aP)&
qt
while ((j = k << 1) <= size) { ^p|MkB?uM
if (j < size %26amp;%26amp; queue[j] j++; FdKp@&O+1
if (queue[k]>queue[j]) file://不用交换 @%O"P9;s
break; `]FA} wC
SortUtil.swap(queue,j,k); Vu*yEF}
k = j; &AU%3b
} `*&*jdq&i
}
PnFU{N
private void fixUp(int k) { ,1Suq\
L
while (k > 1) { Ib*l{cxN
int j = k >> 1; s!9.o_k
if (queue[j]>queue[k]) 14]!LgH
break; w[uK3A v
SortUtil.swap(queue,j,k); YS{])+s
k = j; fk5!/>X
} R KFz6t
} % rRYT8
m_W\jz??k
} ;? '`XB!
%q;3bfq@N
} R."<he ;
{[jcT>.3j
SortUtil: 5H6m{ng
0F1 a
package org.rut.util.algorithm; drBWo|/
lV?rC z
import org.rut.util.algorithm.support.BubbleSort; W% YJ.%I
import org.rut.util.algorithm.support.HeapSort; zQ(li9
import org.rut.util.algorithm.support.ImprovedMergeSort; AZ(["kh[
import org.rut.util.algorithm.support.ImprovedQuickSort; |<\o%89AM
import org.rut.util.algorithm.support.InsertSort; 7Z0
)k9*
import org.rut.util.algorithm.support.MergeSort; ~Hd{+0
import org.rut.util.algorithm.support.QuickSort; Ih ;6(5z
import org.rut.util.algorithm.support.SelectionSort; `ihlKFX
import org.rut.util.algorithm.support.ShellSort; `pn]jpW9
ua/A &XQx
/** 7ib~04
* @author treeroot _SY<(2s]B
* @since 2006-2-2 mv/'H^"[_
* @version 1.0 `4'v)!?
*/ rqxoqc Z
public class SortUtil { mEa\0oPGB
public final static int INSERT = 1; k_r12Bu
public final static int BUBBLE = 2; pD9*WKEf*
public final static int SELECTION = 3; KqP!={>"
public final static int SHELL = 4; SuB;Nb7r`
public final static int QUICK = 5; c_~)#F%P
public final static int IMPROVED_QUICK = 6; [uT&sZxmg
public final static int MERGE = 7; Sqed*
public final static int IMPROVED_MERGE = 8; Lp5LRw
public final static int HEAP = 9; >to NGGU=~
[<