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。 N}^\$sVu_
插入排序: C"YM"9JSJ
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package org.rut.util.algorithm.support; jmAWto}.
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import org.rut.util.algorithm.SortUtil; J[<:-$E
/** \Mi y+<8$
* @author treeroot 9 s>JdAw?
* @since 2006-2-2
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* @version 1.0 ~A6QX8a
*/ M~wJe@bc
public class InsertSort implements SortUtil.Sort{ o,X ?
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/* (non-Javadoc) 8-po|
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PR.?"$!D{
*/ %+`$Lb?{
public void sort(int[] data) { XRaq\a`=:
int temp; $_<,bC1[
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Q Zd
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} {
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} A3h[VnuG,
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} :PjHs Np;^
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冒泡排序: s K s
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package org.rut.util.algorithm.support; ^S[Mg6J
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import org.rut.util.algorithm.SortUtil; r0hu?3u1?
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/** F7L+bv
* @author treeroot jtN2%w;
* @since 2006-2-2 &
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* @version 1.0 CxwZ$0
*/ /(XtNtO*
public class BubbleSort implements SortUtil.Sort{ $0{c=r9
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/* (non-Javadoc) L%N|8P[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \/'u(|G
*/ *R8q)Q
public void sort(int[] data) { qM]eK\q 1
int temp; up`!r;5-
for(int i=0;i for(int j=data.length-1;j>i;j--){ {6A3?q
if(data[j] SortUtil.swap(data,j,j-1); &s\w:
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} Lymy/9
} Eiwo==M
} #=+d;RdlW
} XG*Luc-v
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} rFdovfb
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选择排序: nKufVe
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package org.rut.util.algorithm.support; n|3ENN
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import org.rut.util.algorithm.SortUtil; "M1[@xog
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/** 91e&-acA
* @author treeroot 3fM~R+p
* @since 2006-2-2 AEhh
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* @version 1.0 >STWt>s
*/ @)|62Dv /
public class SelectionSort implements SortUtil.Sort { |%we@
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/* = K}5 fe
* (non-Javadoc) IIs'm!"Y>
* WHMt$W}%
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) KK}^E_v
*/
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public void sort(int[] data) { z4{H=
int temp; hH|3s-o
for (int i = 0; i < data.length; i++) { $_% a=0
int lowIndex = i; ,;hIyT
for (int j = data.length - 1; j > i; j--) { 6:#zlKYJ
if (data[j] < data[lowIndex]) { i4&"-ujrm
lowIndex = j; Tf<1Z{9
} F3i+t+Jt
} Hq3"OMG q
SortUtil.swap(data,i,lowIndex); X^eTf-*T
} | Fm(
} uI!rJc>TX
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} pQ!NhzQ
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Shell排序: xP
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package org.rut.util.algorithm.support; kR3g,P{L
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import org.rut.util.algorithm.SortUtil; n0:'h}^
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/** xJ:15eDC
* @author treeroot >A;Mf*E
* @since 2006-2-2 CMI%jyiX
* @version 1.0 JJPU!
*/ 4%0eX]
public class ShellSort implements SortUtil.Sort{ #ih(I7prH
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/* (non-Javadoc) Np$pz
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) odD^xg"L
*/ 3Gubq4r
public void sort(int[] data) { T;IaVMFG|d
for(int i=data.length/2;i>2;i/=2){ x$tx!%,)/S
for(int j=0;j insertSort(data,j,i); FO&U{(Q
} K?8{y
} rzsb(
insertSort(data,0,1); 8vOKm)[%
} c,:xm=&
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/** ~k'KS
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* @param data ]v{f!r=}
* @param j ;!v2kVuS]
* @param i R'`q0MoN1
*/ n*D-01vYP
private void insertSort(int[] data, int start, int inc) { XXBN
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int temp; ^$}9
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for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 7Ps I'1v
} 4Z12Z@ A#7
} J\^ZRu_K
}
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快速排序: ]h3<r8D_#
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package org.rut.util.algorithm.support; ^I*</w8
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import org.rut.util.algorithm.SortUtil; d!mtSOh
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/** [p^N].K$
* @author treeroot X`JWYb4
* @since 2006-2-2 "7mYs)=
* @version 1.0 RB`Emp&T
*/ GVP"~I~/:
public class QuickSort implements SortUtil.Sort{ ]r8t^bqe
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/* (non-Javadoc) N}HQvlLkF9
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $w4%JBZr
*/ Cp` [0v~0
public void sort(int[] data) { Vf9PHHH|
quickSort(data,0,data.length-1); ,\laqH\ 1%
} \x P$m|Y3
private void quickSort(int[] data,int i,int j){ SR7$m<0t*
int pivotIndex=(i+j)/2; 0*^ J;QGE
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SortUtil.swap(data,pivotIndex,j); C8 9c2
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int k=partition(data,i-1,j,data[j]); ?^t"tY
SortUtil.swap(data,k,j); t{Ck"4Cg
if((k-i)>1) quickSort(data,i,k-1); 2#:/C:
if((j-k)>1) quickSort(data,k+1,j); (C>FM8$J
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} yr?*{;
/** (N{Rda*8
* @param data 3omFd#EP
* @param i "uf*?m3
* @param j D!<[\G
* @return [!H2i
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*/ o=@0Bd8
private int partition(int[] data, int l, int r,int pivot) { d$Y3 a^O|
do{ t\Pn67t
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); nm5zX,
SortUtil.swap(data,l,r); VO r*YB&
} |U)m'W-(q
while(l SortUtil.swap(data,l,r); G347&F)
return l; d*Q:[RUf,
} itClCEOA
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} 0goKiPx
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改进后的快速排序: K;moV| j
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package org.rut.util.algorithm.support; &9X`tCnL
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import org.rut.util.algorithm.SortUtil; NsDJq{
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/** m} /L MY
* @author treeroot 65X31vU
* @since 2006-2-2 v|uY\Z
* @version 1.0 tVVnQX
*/ |:yQOq|
public class ImprovedQuickSort implements SortUtil.Sort { k.=67L
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private static int MAX_STACK_SIZE=4096; q ,6 y{RyS
private static int THRESHOLD=10; 5(e?,B }
/* (non-Javadoc) G%0G$3W"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H^_]' ~.
*/ rw_T&>!
public void sort(int[] data) { dayp1%d
int[] stack=new int[MAX_STACK_SIZE]; JA0$Fz
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int top=-1; $Gt1T[:QUX
int pivot; D>"U0*h
int pivotIndex,l,r; *I,3,zO
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stack[++top]=0; E/ %S0
stack[++top]=data.length-1; tk3%0XZH
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while(top>0){ \;AW/&Ea
int j=stack[top--]; ~um+r],@@
int i=stack[top--]; ;m6Mm`[i<
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pivotIndex=(i+j)/2; \bAsn89O
pivot=data[pivotIndex]; xHEkmL`)4
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SortUtil.swap(data,pivotIndex,j); 9Br2}!Ny
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file://partition 8qwc]f$.w
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r=j; ]}z;!D>
do{ :(tSL{FO
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); q)JG_Y.p
SortUtil.swap(data,l,r); K^z-G=|N
} qT]Bl+h2
while(l SortUtil.swap(data,l,r); 2y;
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SortUtil.swap(data,l,j); o%#Z
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if((l-i)>THRESHOLD){ N}{CL(xi
stack[++top]=i; /E>z8J$
stack[++top]=l-1; ,Nl]rmI
} aIaydu+ \
if((j-l)>THRESHOLD){ !R,9Pg*Ey
stack[++top]=l+1; ?3
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stack[++top]=j; 9D74/3b*
} ^aVoH/q*C
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} %-"?
file://new InsertSort().sort(data); AMqu}G
insertSort(data); : sIZ+3
} G#V5E)Dx
/** INwc@XB
* @param data cyUNJw
*/ ( 8+ _~_
private void insertSort(int[] data) { 1lRqjnzve&
int temp; 6S?a57;&W
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ^Q8m)0DP
} n=v4m_e
} it!i'lG
} !fdni}f)
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} u:H@]z(x
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归并排序: PHRc*G{
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package org.rut.util.algorithm.support; Yjz'lWg
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import org.rut.util.algorithm.SortUtil; -k\7k2
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/** Y{y #us1
* @author treeroot ^EU&6M2
* @since 2006-2-2 'R6D+Vk/
* @version 1.0 @'[w7HsJ
*/ QI>yi&t
public class MergeSort implements SortUtil.Sort{ QC>I<j&`!
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/* (non-Javadoc) j9C=m"O
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =0xuH>WY}w
*/ b!hxx Z
public void sort(int[] data) { 9[5NnRv$P
int[] temp=new int[data.length]; 2YK4SL
mergeSort(data,temp,0,data.length-1); n`f},.NM|
} s%]-Sw9
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private void mergeSort(int[] data,int[] temp,int l,int r){ xXO& -v{
int mid=(l+r)/2; xD#PM |I
if(l==r) return ; l/OG79qq
mergeSort(data,temp,l,mid); >VP\@xt(R[
mergeSort(data,temp,mid+1,r); 77/y{#Sk
for(int i=l;i<=r;i++){ ri~d Wx
temp=data; Y5LESZWo
} sBp|Lo
int i1=l; FsZM_0>/s
int i2=mid+1; 4s*P5w_'/
for(int cur=l;cur<=r;cur++){ Mr:*l`b_
if(i1==mid+1) lj%8(X u
data[cur]=temp[i2++]; `(aU_r=
else if(i2>r) 4,f[D9|:
data[cur]=temp[i1++]; (]j*)~=V
else if(temp[i1] data[cur]=temp[i1++]; M
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else S|;a=K&hS
data[cur]=temp[i2++]; YU76(S9 0#
} BieII$\P%P
} {d(PH7R
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} tZ>>aiI3
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改进后的归并排序: WlP@Tm5g/
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package org.rut.util.algorithm.support; 7|zt'.56[
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import org.rut.util.algorithm.SortUtil; P,h@F+OZN
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/** )ACa0V>*p
* @author treeroot vJGxD\h
* @since 2006-2-2 v Xio1hu
* @version 1.0 [k-7Kq
*/ 8q7KqYu
public class ImprovedMergeSort implements SortUtil.Sort { <t]c'
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private static final int THRESHOLD = 10; bXq,iX
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/* \,
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* (non-Javadoc) (#c5Q&