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。 (S4HU_,88
插入排序: w5^k84vye
4*L*"vKa
package org.rut.util.algorithm.support; 6#AEVRJKU@
'oK oF
import org.rut.util.algorithm.SortUtil; p/88mMr
/** 8rx|7
* @author treeroot as'yYn8
* @since 2006-2-2 rW090Py
* @version 1.0 Bd7B\zM
*/ ^BM !TQ%!
public class InsertSort implements SortUtil.Sort{ TtF+~K
lT*@f39~g
/* (non-Javadoc) ][b|^V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^|=P9'4Th
*/ LF
@_|oI
public void sort(int[] data) { PU[<sr#,
int temp; ^^zj4 }On?
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); * nFzfV
} e(N},s:_
} BU4IN$d0Po
} "GR*d{
qpMcVJL
} j!y9E~Zz
:p,|6~b$
冒泡排序: IuT)?S7O*k
;c>"gW8
package org.rut.util.algorithm.support; SO.u0!
j
RcE241
import org.rut.util.algorithm.SortUtil; kG{};Vm
x=IZ0@p
/** d:w/{m%#
* @author treeroot gS'7:UH,
* @since 2006-2-2 @HiGc^X(
* @version 1.0 wViTMlq
*/ [*Ai@:F
public class BubbleSort implements SortUtil.Sort{ ?AD-n6
nGe4IY\-w
/* (non-Javadoc) (# mvDz
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4I$Y"|_e
*/ ;[UI]?A%
public void sort(int[] data) { e[?,'Mp9
int temp; :V5 Co!/+
for(int i=0;i for(int j=data.length-1;j>i;j--){ BWQ`8
if(data[j] SortUtil.swap(data,j,j-1); Ws7fWK;
} m [^)Q9o}
} u
z7|!G!43
} C0KFN
} Lui6;NY
Q(cLi:)X2
} e@
D}/1~=
mI!iSVqr
选择排序: deArH5&!
;l~a|KW0
package org.rut.util.algorithm.support; {hJCn*m_
K!Fem6R
import org.rut.util.algorithm.SortUtil; s+v9H10R
Y.) QNTh
/** d,N6~?B
* @author treeroot W^h,O+vk
* @since 2006-2-2 fv#ov+B
* @version 1.0 "acI:cl?,
*/ xGQP*nZ
public class SelectionSort implements SortUtil.Sort { W4&8
k}F7Jw#.
/* Z{BK@Q4z
* (non-Javadoc) R.*;] R>M
* }~|`h1JF
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Uz_p-J0
*/ @2L^?*n=
public void sort(int[] data) { G![d_F"e
int temp; 4K'U}W
for (int i = 0; i < data.length; i++) { B )[RIs
int lowIndex = i; T0")Ryu
for (int j = data.length - 1; j > i; j--) { 3o[(pfcU
if (data[j] < data[lowIndex]) { eOiH7{OA,
lowIndex = j; m3Wc};yE*Q
} W{.:Cf9
} =DfI^$Lr:
SortUtil.swap(data,i,lowIndex); zN!yOlp5
} ,hu@V\SKv
} HZ%V>88
bR)P-9rs
} u &1M(~Ub=
u9|Eos i
Shell排序: ']eN4H&=?}
2F`#df
package org.rut.util.algorithm.support; -%Vh-;Ie(
d@g2 9rs
import org.rut.util.algorithm.SortUtil; H390<`
m jP
/** w-ald?`
* @author treeroot fcEm:jEZ*
* @since 2006-2-2 &WBpd}|+Y
* @version 1.0 2<5LQr
*/ )L6
it
public class ShellSort implements SortUtil.Sort{
..E_M$}
9ybR+dGm+
/* (non-Javadoc) M j[+h|e
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;Us6:}s
*/ "lu^
public void sort(int[] data) { Bo8f52|
for(int i=data.length/2;i>2;i/=2){ L`K)mCr
for(int j=0;j insertSort(data,j,i); 0.wF2!V.
} D((/fT)eD
} 6Aqv*<1=62
insertSort(data,0,1); -XL?n/M
} SF*mY=1
KTT!P 4
/** YToG'#qs
* @param data >^`# %$+
* @param j 9&=%shOc+x
* @param i AZhI~QWo
*/ 1}|y^oB\-
private void insertSort(int[] data, int start, int inc) { yN{**?b
int temp; \mGb|aF8
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); *\xRNgEQ
} Cj3Xp~
} 9 c9$cnQ
} _ps4-<ugC
Zy3F%]V0
} Y=<ABtertS
~FYC'd
快速排序: yC5>k;/6#K
6wB
!dl
package org.rut.util.algorithm.support; m`fdf>gWp
G@D;_$a
import org.rut.util.algorithm.SortUtil; [ _xOz4`%
q1 q~%+Jy
/** nt|n[-}
* @author treeroot .O0eSp|e
* @since 2006-2-2 j -o
* @version 1.0 KYB3n85 1
*/ eyDI>7W
public class QuickSort implements SortUtil.Sort{ hr.mzQd
um]*nXIr
/* (non-Javadoc) 1_LKqBgo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) XS@iu,uO
*/ ?:60lCqj
public void sort(int[] data) { 2BO H8Mp9
quickSort(data,0,data.length-1); Ja*,ht(5
} >BO!jv!a
private void quickSort(int[] data,int i,int j){ (
zm!_~1
int pivotIndex=(i+j)/2; V4"o.G3\o
file://swap st "@kHQ3
SortUtil.swap(data,pivotIndex,j); :%mlsNw
7YTO{E6]d\
int k=partition(data,i-1,j,data[j]); ~!TrC<ft
SortUtil.swap(data,k,j); ._x"b5C
if((k-i)>1) quickSort(data,i,k-1); : ciwh
if((j-k)>1) quickSort(data,k+1,j); >^9j>< Z
!lEV^SQJs
} }.|a0N 5
/** LL3| U
* @param data fy>3#`T-
* @param i ~8k`~t!
* @param j ]A-LgDsS
* @return gPKO-Fsd"
*/ |Zn,|-iW
private int partition(int[] data, int l, int r,int pivot) { mL}Wan
do{ Iu~(SKr=|$
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); \J(~
Nv5!
SortUtil.swap(data,l,r); nSo.,72
}
2i6P<&@
while(l SortUtil.swap(data,l,r); ^v;8 (eF
return l; Gv)*[7
} f~=e
}o
GMF~
} su\Lxv
Aj\m57e,6
改进后的快速排序: >/GYw"KK
mrE>o!
package org.rut.util.algorithm.support; 7[ kDc-
C\C*@9=&x
import org.rut.util.algorithm.SortUtil; u^ wGVg
0\ j)!b
/** ^JIs:\g<<
* @author treeroot QB*AQ5-
* @since 2006-2-2 dXt@x8E
* @version 1.0 ?5d[BV
*/ Pvkr$ou
public class ImprovedQuickSort implements SortUtil.Sort { ='eQh\T)
9J49s1
private static int MAX_STACK_SIZE=4096; u`+kH8#
private static int THRESHOLD=10; /6N!$*8
/* (non-Javadoc) )J\
JAUj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `a7b,d
*/ K^AIqL8
public void sort(int[] data) { O'~^wu.
int[] stack=new int[MAX_STACK_SIZE]; <3k9 y^0
\@6w;tyi
int top=-1; zBrqh9%8e
int pivot; i"!j:YEo
int pivotIndex,l,r; $I4JKh
g fv?#mp
stack[++top]=0; }`$({\^w
stack[++top]=data.length-1; XHuHbriI
z*^vdi0
while(top>0){ Y5IQhV.
int j=stack[top--]; Y-DHW/Z~
int i=stack[top--]; A sf]sU..
kafj?F
pivotIndex=(i+j)/2; c&L|e$C]
pivot=data[pivotIndex]; >?X(,c
F JxH{N6a
SortUtil.swap(data,pivotIndex,j); jvE&%|Ngw
,}OQzK/"mP
file://partition %8%0l*n'
l=i-1; _32 o7}!x
r=j; ;ahI}}
do{ JHVesX
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); olDzmy(=W*
SortUtil.swap(data,l,r); ~m7?:(/lb
} &ujq6~#
while(l SortUtil.swap(data,l,r); g31\7\)Ir
SortUtil.swap(data,l,j); 6O'B:5~[2
pEGHW;
if((l-i)>THRESHOLD){ ^zS|O]Tx
stack[++top]=i; ZoKX ao
stack[++top]=l-1; lS`VJA6l.
} j =b-Y
if((j-l)>THRESHOLD){ #5IfF~*i
stack[++top]=l+1; ?B4X&xf.D
stack[++top]=j; Fmrl*tr
} :?gk=JH:
M059"X="
}
-S}^b6WL
file://new InsertSort().sort(data); Q
S.w#"X[
insertSort(data); Z2\Xe~{
} iJ`v3PP
/** llBW*4'
* @param data :"oUnBY%
*/ tj!~7lo
private void insertSort(int[] data) { ~c
GH+M@
int temp; f+dj6!g5/
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); +@C|u'
} ? m.Ry
} Xu5^ly8p9q
} ]M9r<x*
ZEU/6.
} %?:eURQ
=g^JJpS
归并排序: {B6tGLt#bf
5l(NX
package org.rut.util.algorithm.support; :,dO7dJi
ApAHa]Ccp
import org.rut.util.algorithm.SortUtil; .[:*bo3
FHu+dZ
/** =_dqoAF
* @author treeroot %MUwd@,
* @since 2006-2-2 L {i|OK^e
* @version 1.0 Rlf#)4
*/ ZzO.s$
public class MergeSort implements SortUtil.Sort{ \>XkK<ye
lWYgIpw
/* (non-Javadoc) -jsk-,
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Jyu*{
*/ {[.<BU-
public void sort(int[] data) { pSJc.j
int[] temp=new int[data.length]; a<`s'N1G
mergeSort(data,temp,0,data.length-1); k39;7J
} GSu&Z