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。 @VlDi1
插入排序: |G^w2"D_Z
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package org.rut.util.algorithm.support; =+{SZh@
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import org.rut.util.algorithm.SortUtil; J&mZsa)4
/** [
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* @author treeroot hS<lUG!9UJ
* @since 2006-2-2
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* @version 1.0 C"`,?K(U
*/ 9?8Yf(MC%u
public class InsertSort implements SortUtil.Sort{ )$[.XKoT
*&7F(
/* (non-Javadoc) H_H3Gp
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) X=Qa TV
*/ aj>6q=R
public void sort(int[] data) { oC"1{ybyl
int temp; Pc"g
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 8UY[$lc
} |Nx7jGd:i
} Tf[o'=2
} 0)=U:y.
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} "UUzLa_
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冒泡排序: !% ' dyj
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package org.rut.util.algorithm.support; lOk'stLNa&
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import org.rut.util.algorithm.SortUtil; v/NkG;NWM
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/** yHrYSEM
* @author treeroot z=YHRS
* @since 2006-2-2 BO6u<cu"-
* @version 1.0 j5eX?bi_v
*/ /r Q4JoR>
public class BubbleSort implements SortUtil.Sort{ x6-bAf
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/* (non-Javadoc) '3h"Ol{b
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q]n a_'_
*/ ;"gUrcuY
public void sort(int[] data) { /)Ga<
int temp; pAZD>15l"
for(int i=0;i for(int j=data.length-1;j>i;j--){ zTP|H5HyK
if(data[j] SortUtil.swap(data,j,j-1); h^Bp^V5#
} d~ m,hCTe
} (c^ZFh2]
} h!>K[*
} 9Tju+KcK
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} $F^p5EXkc6
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选择排序: ix.I)
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package org.rut.util.algorithm.support; 6;JlA})
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import org.rut.util.algorithm.SortUtil; 2D`_!OG=
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/** ,\2w+L5TD
* @author treeroot J 'qhY'te
* @since 2006-2-2 o3=2`BvJ
* @version 1.0 }iOFB&)w
*/ 3rRN~$
public class SelectionSort implements SortUtil.Sort { +;@p'af!9
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/* P LHiQ:
* (non-Javadoc) KG8:F].u(
* h_xHQf
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xna4W|-
*/ yu^n;gWH
public void sort(int[] data) { "2J$~2{N
int temp; Hi V7
for (int i = 0; i < data.length; i++) { -chk\75
int lowIndex = i; 3Gr:.V9=
for (int j = data.length - 1; j > i; j--) { }VetaO2*
if (data[j] < data[lowIndex]) { zG"*B_l}+
lowIndex = j; Qj:`[#3?2
} p bRU"
} |ORro
r}
SortUtil.swap(data,i,lowIndex); cV|u]ce%1
} CVk.Ez6
} q!r4"#Y"@Z
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} @)iAV1r"
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Shell排序: ggQB Q/ L
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package org.rut.util.algorithm.support; ~a5-xWEZ
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import org.rut.util.algorithm.SortUtil; z8n=\xL
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/** 0\/cTNN
* @author treeroot Ei$@)qS/
* @since 2006-2-2 *|OP>N
* @version 1.0 /kK%}L_D
*/ 3$~6+i
public class ShellSort implements SortUtil.Sort{ C VyYV &U,
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/* (non-Javadoc) ..Dr?#Cr
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3M@!?=|U
*/ v&#=1Zb
public void sort(int[] data) { 1G6 %?Iph
for(int i=data.length/2;i>2;i/=2){ Ok/U"N-
for(int j=0;j insertSort(data,j,i); M@TXzn!&o
} et-<ib<lY
} r=S6yq}
insertSort(data,0,1); _--kK+rU
} "{1SDbwmMo
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/** O)Wc\-
* @param data `8D)j>Yh~
* @param j ^y1P~4w?
* @param i +CQ$-3
*/ 7?[{/`k~?
private void insertSort(int[] data, int start, int inc) { )|Il@unp/
int temp; 8Ev,9
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); "&@v[O)!xu
} &OXnZT3P
} )9PP3" I
} N.l\2S}
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} <}vult^
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快速排序: @An "ClDa
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package org.rut.util.algorithm.support; mqIcc'6f
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import org.rut.util.algorithm.SortUtil; 0=,vdT
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/** DXH"`1[-
* @author treeroot aYC[15?'
* @since 2006-2-2
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* @version 1.0 CSBk
*/ <gtqwH]
public class QuickSort implements SortUtil.Sort{ G\I DgPj`
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/* (non-Javadoc) bq}hj Cy
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^kF-mM=
*/ }2 X"
public void sort(int[] data) { *pZhwO!D
quickSort(data,0,data.length-1); kv)IG$S0
} <z2*T \B!8
private void quickSort(int[] data,int i,int j){ H:x{qS4Si
int pivotIndex=(i+j)/2; ivi,/~L
file://swap iuxS=3lT"K
SortUtil.swap(data,pivotIndex,j); r^jiK\*
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int k=partition(data,i-1,j,data[j]); ,[j'OyR
SortUtil.swap(data,k,j); ;`(l)X+7
if((k-i)>1) quickSort(data,i,k-1); 'T_Vm%\)
if((j-k)>1) quickSort(data,k+1,j); K9@F1ccQ/
]-7$wVQ<
} <"SOH;w
/** /2&:sHWW
* @param data E#T6rd P
* @param i Cxt_QyL?
* @param j "y5LojdCs
* @return [!Jd.zm
*/ .]IidsgM
private int partition(int[] data, int l, int r,int pivot) { SZ*Nr=X
do{ P%nN#Qm
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); lZI?k=rWv
SortUtil.swap(data,l,r); m%[Ul@!V
} :I)WSXP9h
while(l SortUtil.swap(data,l,r); jH4'jB
return l; jJ B+UF=
} =MP?aH
[
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} %~$P.Zh
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改进后的快速排序: >w}5\4j
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package org.rut.util.algorithm.support; B>!OW2q0D
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import org.rut.util.algorithm.SortUtil; ;hcOD4or
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/** -76l*=|
* @author treeroot }0%~x,
* @since 2006-2-2
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* @version 1.0 ,{tK{XpS
*/ `RriVYc<
public class ImprovedQuickSort implements SortUtil.Sort { zt23on2
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private static int MAX_STACK_SIZE=4096; l^ Q-KUI
private static int THRESHOLD=10; (C=.&',P
/* (non-Javadoc) ohod)8
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h\@\*Xz<v
*/ /%P|<[<
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public void sort(int[] data) { x_yQoae
int[] stack=new int[MAX_STACK_SIZE]; $^ wqoW%t
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int top=-1; qVpV ZH!
int pivot; F"?OLV1B&
int pivotIndex,l,r; @S%ogZz*m
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stack[++top]=0; uq~Z
stack[++top]=data.length-1; Vp5i i]B4
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while(top>0){ "%~Jb dx
int j=stack[top--]; Y<"BhE
int i=stack[top--]; ;B,6v P#
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pivotIndex=(i+j)/2; J2ryYdo>
pivot=data[pivotIndex]; ROv(O;.Ty
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SortUtil.swap(data,pivotIndex,j); vs`"BQYf
zlw+=NX
file://partition 3b#eB
l=i-1; i 1{Lx)
r=j; vfn _Nq;
do{ _3_kvs
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); L T.u<ThR}
SortUtil.swap(data,l,r); LrL
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} p;P"mp\'
while(l SortUtil.swap(data,l,r);
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SortUtil.swap(data,l,j); AD** 4E
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if((l-i)>THRESHOLD){ \bc ob8u
stack[++top]=i; ks}J
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stack[++top]=l-1; d5hYOhO[
} 6BnP"R.
if((j-l)>THRESHOLD){ [#}0)
stack[++top]=l+1; G1vg2'A
stack[++top]=j; N3Yf3rK
} [X"F}ph
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} TH%J=1d
file://new InsertSort().sort(data); 3.c0PRZ
insertSort(data); Bc^%1
} wd
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/** s\CZ os&
* @param data /p&V72
*/ Q^|ZoJS
private void insertSort(int[] data) { I 19 /
int temp; S1!X;PP/
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); z;#DX15Rj
} 2!7)7wlj0
} {`Jr$*;
} IO*}N"
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} n[mVwQ(%
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归并排序: s5
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package org.rut.util.algorithm.support; _~{Nco7T
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import org.rut.util.algorithm.SortUtil; .w.jT"uD!
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/** YM:;mX5B
* @author treeroot '1jG?D
* @since 2006-2-2 x$6`k
* @version 1.0 ~$bkWb*RJ
*/ 0# )I:5
public class MergeSort implements SortUtil.Sort{ r}9a31i
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/* (non-Javadoc) 3Y
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Hju7gP=y}
*/ us_o{
public void sort(int[] data) { U@6bH@v5
int[] temp=new int[data.length]; xYg G
mergeSort(data,temp,0,data.length-1); \h#,qTE
} XVlZ:kz
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private void mergeSort(int[] data,int[] temp,int l,int r){ )}G?^rDH(
int mid=(l+r)/2; 0c$0<2D%
if(l==r) return ; 0B o7EV
mergeSort(data,temp,l,mid); ?tf/#5t}
mergeSort(data,temp,mid+1,r); 5q.d$K |
for(int i=l;i<=r;i++){ _0v+g1x
temp=data; w[WyT`6h!
} 6<uJ}3
int i1=l; w6-A-M6hD
int i2=mid+1; z)Yk&;XC
for(int cur=l;cur<=r;cur++){ N y\c>$z
if(i1==mid+1) 9L"Z
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data[cur]=temp[i2++]; wa#$9p~Q
else if(i2>r) fpDx)lQ
data[cur]=temp[i1++]; P$a `8~w
else if(temp[i1] data[cur]=temp[i1++]; gG 9e.++:
else /YyimG7
data[cur]=temp[i2++]; _D{V(c<WD
} \BoRYb9h
} M<A jtDF%
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} [32]wgw+{1
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改进后的归并排序: z<T(afM{*
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package org.rut.util.algorithm.support; 9i&(VzY[=
HP$GI
import org.rut.util.algorithm.SortUtil; d>RoH]K4
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/** l@h|os
* @author treeroot ,t2yw
* @since 2006-2-2 &gDwsW
* @version 1.0 Ew&pwsQ
*/ $,mljJSQv
public class ImprovedMergeSort implements SortUtil.Sort { efc<lSUR
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private static final int THRESHOLD = 10; -w[j`}([P9
C\Y%FTS:
/* h~!KNF*XW
* (non-Javadoc) \z~wm&
* v>p UVM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U#u=9%'
*/ *an^
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public void sort(int[] data) { L,(H(GeX
int[] temp=new int[data.length]; <wIz8V
mergeSort(data,temp,0,data.length-1); x)wlp{rLf
} ~ x!"(
s>RtCw3,
private void mergeSort(int[] data, int[] temp, int l, int r) { ^:Mal[IR
int i, j, k; JQo"<<[
int mid = (l + r) / 2; bv NXA*0
if (l == r) ?4[IIX-
return; k\ 2.\Lwb
if ((mid - l) >= THRESHOLD) n^a&@?(+
mergeSort(data, temp, l, mid); _SW_I{fjr
else Ojh\H
insertSort(data, l, mid - l + 1); L.E6~Rv
if ((r - mid) > THRESHOLD) a/k0(
mergeSort(data, temp, mid + 1, r); csEF^T-
else w_>SxSS7
insertSort(data, mid + 1, r - mid); }o'WR'LX
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for (i = l; i <= mid; i++) { DE $HF*WY
temp = data; _#jR6g TY
} Dc2U+U(J
for (j = 1; j <= r - mid; j++) { _$Wj1h
temp[r - j + 1] = data[j + mid]; (i 3=XfZ!C
} fcim4dfP
int a = temp[l]; R#n!1~ (
int b = temp[r]; prdlV)LTpY
for (i = l, j = r, k = l; k <= r; k++) { ]]EOCGZ"
if (a < b) { T[?toqkD>z
data[k] = temp[i++]; P2j"L#%
a = temp; 8Hdm(>
} else { <$V!y
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data[k] = temp[j--]; hHu?%f*
b = temp[j]; ; qQ* p
} ^#V7\;v$G
} JKXb$
} mh4<.6>5
8iB}gHe9
/** PQ#zF&gL9t
* @param data k|r+/gIV
* @param l fFSQLtm?E
* @param i HW@r1[Y
*/ )Rlh[Y& r
private void insertSort(int[] data, int start, int len) { 1 m>x5Dbk!
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 68!W~%?pR
} Qw,{"J
} mZ[tB/
} 0tFR.
sS?
} jQV.U~25Q
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堆排序: zFFip/z\
KeGGF]=>
package org.rut.util.algorithm.support; Os5Xejh`I
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import org.rut.util.algorithm.SortUtil; >l$qE
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/** S,*
* @author treeroot gdx2&~
* @since 2006-2-2 /}ADV2sF
* @version 1.0 A_ftf7,
*/ -(Z%?]+
public class HeapSort implements SortUtil.Sort{ 3jJd)C R
G]$.bq[v
/* (non-Javadoc) }(yX$ 3?`
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d,"6s=4(q
*/ ZJod=^T
public void sort(int[] data) { nXg:lCI-uu
MaxHeap h=new MaxHeap(); z0v|%&IK