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。 a;7gy419<p
插入排序: ^sZHy4-yK#
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package org.rut.util.algorithm.support; D//Ts`}+n
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import org.rut.util.algorithm.SortUtil; (B+zh
/** T7G{)wm
* @author treeroot Q!Dr3x
* @since 2006-2-2 d cht8nX7~
* @version 1.0 4p u>f.
*/ ,J-YfL^x6*
public class InsertSort implements SortUtil.Sort{ ">I50#bT
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/* (non-Javadoc) ZONe}tv:
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;S>ml
*/ yw?UA
public void sort(int[] data) { YKj PE
int temp;
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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); z 2V_nkI
} bO{wQ1)Z_
} ErMA$UkJ
} ^nL_*+V`f
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冒泡排序: b~;+E#[*
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package org.rut.util.algorithm.support; XAr YmO
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import org.rut.util.algorithm.SortUtil;
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/** ;,]Wtmu)7
* @author treeroot B1gBvss
* @since 2006-2-2 gTP0:
* @version 1.0 a)8M'f_z
*/ 5AT[1@H(_
public class BubbleSort implements SortUtil.Sort{ AUAJMS!m
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/* (non-Javadoc) <[GkhPfZ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -5yEd>Z
*/ X}3o
public void sort(int[] data) { X8b= z9
int temp; F4Gv=q)Z
for(int i=0;i for(int j=data.length-1;j>i;j--){ O}#h^AU-BS
if(data[j] SortUtil.swap(data,j,j-1); Dx27 s
} F\;G'dm
} h{cJ S9e}
} !_gHIJiq}
} /g!', r,
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} wg=ge]E5
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选择排序: 8FThu[
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package org.rut.util.algorithm.support; V}kZowWD
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import org.rut.util.algorithm.SortUtil; 0"L_0 t:
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/** RscU=oaKi
* @author treeroot n_51-^*z
* @since 2006-2-2 QuJ)WaJkC
* @version 1.0 -P<e-V%<
*/ IOsitMOX:
public class SelectionSort implements SortUtil.Sort { f6ad@2
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/* !(soMv
* (non-Javadoc) {(#>%f+|C
* Y\len
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iy{*w&p
*/ :.IVf Zw
public void sort(int[] data) { io$!z=W
int temp; XOzd{
for (int i = 0; i < data.length; i++) { ^[SQw)*
int lowIndex = i; mh"&KX86W
for (int j = data.length - 1; j > i; j--) { nxP>IfSA
if (data[j] < data[lowIndex]) { uFIr.U$V
lowIndex = j; d3AOuVUf
} D0D0=s
} #$QC2;/)F
SortUtil.swap(data,i,lowIndex); CCOd4
} %+U.zd$
} D}wM$B@S
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} jX79Nm|
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Shell排序: h+Dp<b
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package org.rut.util.algorithm.support; {i)k# `
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import org.rut.util.algorithm.SortUtil; ^ 9
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/** *wcb 5p
* @author treeroot oO-kO!59y
* @since 2006-2-2 ]?p&sI4
* @version 1.0 X|)Ox
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*/ pt&(c[
public class ShellSort implements SortUtil.Sort{ ixZ w;+h
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/* (non-Javadoc) 445}Yw5;9
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }UK<tUO
*/ r7r>1W%4
public void sort(int[] data) { V8w!yc
for(int i=data.length/2;i>2;i/=2){ s_A<bW566F
for(int j=0;j insertSort(data,j,i); L,L>cmpM
} RfVVAaI
} p9ligs7V'
insertSort(data,0,1); S+G!o]&2
} Ai&-W
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/** \*Roa&<!
* @param data `x2Q:&.H`
* @param j _,Wb`P
* @param i 5T)qn`%
*/ z;GR(;w/
private void insertSort(int[] data, int start, int inc) { _Gv[ D
int temp; hce *G@b
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); _zq"<Q c
} [m3[plwe
} Zi5d"V[}T
} C
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} Fp52|w_
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快速排序: *5'U3py
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package org.rut.util.algorithm.support; {//;GC*
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import org.rut.util.algorithm.SortUtil;
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/** qP6Yn JWl
* @author treeroot ?}4 =A&][
* @since 2006-2-2 ,f
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* @version 1.0 xxWrSl`fB
*/ dc[w`
public class QuickSort implements SortUtil.Sort{ cNX,%
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/* (non-Javadoc) T=6fZ;7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4FK|y&p4r
*/ 9aYDi)
public void sort(int[] data) { *7: )k
quickSort(data,0,data.length-1); DU9A 3Z
} X=O}k&
private void quickSort(int[] data,int i,int j){ P70\ |M0~y
int pivotIndex=(i+j)/2; 6E~T$^Q}
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SortUtil.swap(data,pivotIndex,j); KUs\7Sb
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int k=partition(data,i-1,j,data[j]); x8H%88!j*
SortUtil.swap(data,k,j); n3w(zB
if((k-i)>1) quickSort(data,i,k-1); x2gnB@t
if((j-k)>1) quickSort(data,k+1,j); So &c\Ff
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} gY'w=(/`
/** L`E^BuP/
* @param data r?Y+TtF\e
* @param i fNz*E|]8&
* @param j 99Jk<x
k
* @return Ta;'f7Oz
*/ JN;92|x
private int partition(int[] data, int l, int r,int pivot) { uM3F[p%V^
do{ dxm_AUM
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); @R+bR<}]
SortUtil.swap(data,l,r); vwZ d@%BO
} qkX}pQkG)h
while(l SortUtil.swap(data,l,r); .eQIU$Kw!O
return l; >?b<)Q*<
} 9d ZE#l!Q
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} nsChNwPX
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改进后的快速排序: u+7B-l=u*
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package org.rut.util.algorithm.support; rSTc4m1R
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import org.rut.util.algorithm.SortUtil; d~[^D<5,D
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/** 8 jom)a
* @author treeroot ~r`~I"ZK7^
* @since 2006-2-2 ~r~~0|=
* @version 1.0 Bsm>^zZ`YU
*/ .;gK*`G2W)
public class ImprovedQuickSort implements SortUtil.Sort { rVLUT
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private static int MAX_STACK_SIZE=4096; |JVeW[C
private static int THRESHOLD=10; !*8x>,/>
/* (non-Javadoc) mPR(4Ol.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~<0!sE&y
*/ >-0b@ +j
public void sort(int[] data) { 2i);2>HLG
int[] stack=new int[MAX_STACK_SIZE]; <&'Y e[k
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int top=-1; PPCZT3c=
int pivot; s^_E'j$
int pivotIndex,l,r; H!dUQ
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stack[++top]=0; 4_,l[BhsQG
stack[++top]=data.length-1; jjgY4<n
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while(top>0){ l'~]8Wo1
int j=stack[top--]; H~~I6D{8
int i=stack[top--]; :=#*[H
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pivotIndex=(i+j)/2; qL^}t_>
pivot=data[pivotIndex]; [P*3ld,,G%
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SortUtil.swap(data,pivotIndex,j); kmM4KP#&|
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file://partition R6 wK'
l=i-1; 1r}fnT<
r=j; OT7F#:2`
do{ sY,!Ir`/`
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); u!2.[CV
SortUtil.swap(data,l,r); P[{w23`4
} zx\N^R;Jq
while(l SortUtil.swap(data,l,r); tkdhT8_
SortUtil.swap(data,l,j); F2yM2Ldx
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if((l-i)>THRESHOLD){ %+$P<Rw7
stack[++top]=i; uPe4Rr
stack[++top]=l-1; aDa}@-F&a
} xM%E;
if((j-l)>THRESHOLD){ x&R&\}@G m
stack[++top]=l+1; >p!d(J?
stack[++top]=j; S>7Zq5*
} ovCk:Vz
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} |6B:tw/.
file://new InsertSort().sort(data); <9bQAyL9
insertSort(data); w;Qo9=-
} |aN0|O2
/** TMG:fg&E~
* @param data ) iy>sa{
*/ 5fb,-`m.
private void insertSort(int[] data) { {mL/)\
int temp; n:he`7.6O
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9G_=)8sOV
} &+`l
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} ^g[\.Q
} *NV`6?o@6
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} $E|W|4N
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归并排序: @.*[CC;&
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package org.rut.util.algorithm.support; O)Nt"k7
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import org.rut.util.algorithm.SortUtil; Beqhe\{
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/** U`6QD}c"s
* @author treeroot ENC_#-1x
* @since 2006-2-2 W~k!qy `
* @version 1.0 a\}|ikiE
*/ 8tA.d.8
public class MergeSort implements SortUtil.Sort{ (%#d._j>fZ
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/* (non-Javadoc) .ET;wK
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) no?)GQ
*/ ` N(.10~
public void sort(int[] data) { Ynz^M{9)K
int[] temp=new int[data.length]; g#[9O'H
mergeSort(data,temp,0,data.length-1); -(cm
} YGWb!|Z$
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private void mergeSort(int[] data,int[] temp,int l,int r){ YfMe69/0I
int mid=(l+r)/2; +"3eh1q[
if(l==r) return ; )lw7W9
mergeSort(data,temp,l,mid); Nr`nL_DQ
mergeSort(data,temp,mid+1,r); e!4akKw4wD
for(int i=l;i<=r;i++){ u~s'<c+8_
temp=data; l7s=b4}c
} p~8~EQFj
int i1=l; G)#
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int i2=mid+1; J+IW
for(int cur=l;cur<=r;cur++){ uTl:u
if(i1==mid+1) m6;Xo}^w
data[cur]=temp[i2++]; MT6kJDyLu
else if(i2>r) #
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data[cur]=temp[i1++]; G4x.''r&Sl
else if(temp[i1] data[cur]=temp[i1++]; {t=Nnc15K
else 7Ck;LF}>0
data[cur]=temp[i2++]; #Ejly2C,
} e-e{-pB6
} *<Ddn&_
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} Y43#];
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改进后的归并排序: mr('zpkRq
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package org.rut.util.algorithm.support; !r
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import org.rut.util.algorithm.SortUtil; Q?"[zX1
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/** cEqh|Q
* @author treeroot 6~!YEuA
* @since 2006-2-2 ! 4oIx`
* @version 1.0 KPR{5
*/ |wLQ)y*
public class ImprovedMergeSort implements SortUtil.Sort { zHdp'J"
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