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。 ;N4b~k)
插入排序: {4g1Wr5=
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; C
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/** UDHk@M
* @author treeroot ?]081l7cd
* @since 2006-2-2 !Jw
* @version 1.0 &_
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*/ g83!il\
public class InsertSort implements SortUtil.Sort{ ti)foam
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/* (non-Javadoc) BYN<|=
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '}*5ee](S
*/ L=Q-r[
public void sort(int[] data) { P$Y<
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int temp; zPU&
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for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); _JA.~edqM
} pr.Vfb
} C_?L$3 U0
} J4h7]
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} M ]W'>g)G
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冒泡排序: nI%0u<=d
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package org.rut.util.algorithm.support; h{S';/=8
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import org.rut.util.algorithm.SortUtil; e|+U7=CK
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/** 0]{h,W3]@[
* @author treeroot *@lNL=%R
* @since 2006-2-2 oJR0sbikP
* @version 1.0 s2iR }<
*/ Ot(U_rJCi
public class BubbleSort implements SortUtil.Sort{ 3'O+
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/* (non-Javadoc) s"p}>BjMIC
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 07Yh
*/ afv?z
public void sort(int[] data) { xZjD(e'
int temp; oA}&o_Q%
for(int i=0;i for(int j=data.length-1;j>i;j--){ *f$mSI=
if(data[j] SortUtil.swap(data,j,j-1); ||cG/I&,
} ]<A|GY0q1
} JSt%L|}Y
} \CM(
} |[}YM%e
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} j./3 )
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选择排序: Cp&lS=
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package org.rut.util.algorithm.support; bKYLBu:
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import org.rut.util.algorithm.SortUtil; RD_&m?d
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/** .6+j&{WNo!
* @author treeroot {N[IjY
* @since 2006-2-2 Gn#5zx#l
* @version 1.0 mm'n#%\G
*/ WmP"u7I4
public class SelectionSort implements SortUtil.Sort { kB_G L>fc
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/* ez&v"J
* (non-Javadoc) =Bi>$Ly
* )TFaG[tj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) XU5/7
.
*/ <s2IC_f<+
public void sort(int[] data) { di>"\On-
int temp; v#@"Evh7
for (int i = 0; i < data.length; i++) { )7Gm<r
int lowIndex = i; r#JE7uneT
for (int j = data.length - 1; j > i; j--) { @bOhnd#W
if (data[j] < data[lowIndex]) { HsGXb\
lowIndex = j; 4 FW~Y
} L&MR%5
} "yXKu)_
SortUtil.swap(data,i,lowIndex); 'U.)f@L#w
} !JzM<hyg3
} *r@7 :a5
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} ]@vX4G/
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Shell排序: __teh>MC
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package org.rut.util.algorithm.support; q,F\8M\$
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import org.rut.util.algorithm.SortUtil; UBzX%:A
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/** >8D!K0?E
* @author treeroot N9tH0
* @since 2006-2-2 d&4ve Lu
* @version 1.0 LQ`s> q
*/ )=;GQ*<8Zs
public class ShellSort implements SortUtil.Sort{ Gole7I
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/* (non-Javadoc) >!848J
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f6vhW66:?x
*/
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public void sort(int[] data) { 8=CdO|XV
for(int i=data.length/2;i>2;i/=2){ Q^prHn*@
for(int j=0;j insertSort(data,j,i); <K;
} ~~a,Fyko2
} /2l&D~d"
insertSort(data,0,1); g5M=$y/H
} k#uSH
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/** G
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* @param data S"'0lS
* @param j fI"sdzu^
* @param i s!,m,l[P
*/ h?R{5?RxK
private void insertSort(int[] data, int start, int inc) { H
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int temp; ~k\Dde
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Su?e\7aj
} 5{Q5?M]
}
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} 7]W6\Z
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} 01=nS?
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快速排序: H3-(.l[!b)
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package org.rut.util.algorithm.support; Em)U`"j/9
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import org.rut.util.algorithm.SortUtil; A12EUr5$
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/** V=^B7a.;>
* @author treeroot 4`yE'%6.}
* @since 2006-2-2 Jq>rA
* @version 1.0 /pY-how%!
*/ /tm2b<G
public class QuickSort implements SortUtil.Sort{ pwvzs`[;
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/* (non-Javadoc) Hjhgu=
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V>Dqw!
*/ 5aj%<r
public void sort(int[] data) { v[;R(pt?
quickSort(data,0,data.length-1); mR["xDHD
}
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private void quickSort(int[] data,int i,int j){ lfvt9!SJ+/
int pivotIndex=(i+j)/2; UQZl:DYa
file://swap 9|D*}OY>
SortUtil.swap(data,pivotIndex,j); Ml_Hq>\U
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int k=partition(data,i-1,j,data[j]); O22Q
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SortUtil.swap(data,k,j); 9xi nX-x;n
if((k-i)>1) quickSort(data,i,k-1); XHU\;TF
if((j-k)>1) quickSort(data,k+1,j); k5M5bH',
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} {FQ@eeU
/** 7|5X> yt
* @param data za%gD
* @param i l1bkhA b
* @param j K| dI'TnW
* @return XGuxd
*/ pMHF u/|Pr
private int partition(int[] data, int l, int r,int pivot) { 7}:+Yx
do{ [rkw k\m*
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); >.M>,m\
SortUtil.swap(data,l,r); NSa6\.W)
} #x qiGK
while(l SortUtil.swap(data,l,r); aFaioE#h(
return l; %afN&T
} e2e!"kEF
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} )I#{\^
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改进后的快速排序: He,,bq
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package org.rut.util.algorithm.support; Ur]/kij
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import org.rut.util.algorithm.SortUtil; ,Nt^$2DZW
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/** c]h@<wnv
* @author treeroot ua"2nVxK_K
* @since 2006-2-2 Bn9#F#F<
* @version 1.0 Esu{c9,
*/ ]#Cc7wa
public class ImprovedQuickSort implements SortUtil.Sort { V@g v
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private static int MAX_STACK_SIZE=4096; Y)@Y$_
private static int THRESHOLD=10; $*VZa3B\
/* (non-Javadoc) {,i-V57-h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U?an\rv
*/ 4(*PM&'R
public void sort(int[] data) { DuNindo8
int[] stack=new int[MAX_STACK_SIZE]; X;H\u6-|>6
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int top=-1; /o%VjP"<
int pivot; _Dd>e=v
int pivotIndex,l,r; m~
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stack[++top]=0; x!fG%o~h
stack[++top]=data.length-1; d!w3LwZ
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while(top>0){ zz[fkH3
int j=stack[top--]; T>]T=
int i=stack[top--]; ' Ut4=@)
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pivotIndex=(i+j)/2; VP>*J`'H
pivot=data[pivotIndex]; H<[~V0=
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SortUtil.swap(data,pivotIndex,j); D
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file://partition nj0sh"~+
l=i-1; 9Q^cE\j
r=j; ,[IDC3.4^R
do{ &oMWs]0
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Q&N#q53
SortUtil.swap(data,l,r); 9sT5l"?g
} (5 @H
while(l SortUtil.swap(data,l,r); JLnv O
SortUtil.swap(data,l,j); c\2rKqFD8
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if((l-i)>THRESHOLD){ Lj(cCtb)
stack[++top]=i; }rI:pp^KS
stack[++top]=l-1; GkX Se)#p
} %2T
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if((j-l)>THRESHOLD){ GE(~d '
stack[++top]=l+1; -1Dq_!i
stack[++top]=j; B Z|A&;
} BH1h2OEe#
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} 4[@YF@_=M
file://new InsertSort().sort(data); nV7Vc;
insertSort(data); ^\AeX-q2v'
} 7n6g;8xE
/** itP`{[
* @param data ;o3gR4u_L
*/ N"G aQ
private void insertSort(int[] data) { 29,ET}~
int temp; NDP"
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for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 4lB??`UN
} UMR ?q0J
} Z;Hkx1
} L)bMO8JH~m
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} VFL^-tXnA^
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归并排序: 'ZW(Hjrd
C)z4Cn9#
package org.rut.util.algorithm.support; :rUMmO -
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import org.rut.util.algorithm.SortUtil; teg5g|*
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/** uqC#h,~
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* @author treeroot FKTF?4+\U
* @since 2006-2-2 `y3'v]
* @version 1.0 KOS0Du
*/ A/>Q5)
public class MergeSort implements SortUtil.Sort{ x 3=1/#9
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/* (non-Javadoc) W5
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 172 G
*/ +7H)s
public void sort(int[] data) { m!/TJhiQ
int[] temp=new int[data.length]; WFOJg&
mergeSort(data,temp,0,data.length-1); ,Y/B49
} V:kRr cX
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private void mergeSort(int[] data,int[] temp,int l,int r){ P C_!
int mid=(l+r)/2; b&U1^{(
if(l==r) return ; Plp.\N%f3
mergeSort(data,temp,l,mid); s1D<R,J|H
mergeSort(data,temp,mid+1,r); XP@dg4Z=z
for(int i=l;i<=r;i++){ fY!?rZ)$
temp=data; {Yj5Mj|#
} a{]=BY oL
int i1=l; &:&89<C'
int i2=mid+1; 8}B
for(int cur=l;cur<=r;cur++){ Y<xqws
if(i1==mid+1) zeHF-_{
data[cur]=temp[i2++]; <