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。 A3P9.mur
插入排序: }|8*sk#[
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package org.rut.util.algorithm.support; E|Bd>G
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import org.rut.util.algorithm.SortUtil; ^Uw[x\%#gD
/** p|6v~
* @author treeroot ~JZ3a0$^
* @since 2006-2-2 TZ^LA
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* @version 1.0 aP~gaSx
*/ ph30'"[Z}
public class InsertSort implements SortUtil.Sort{ Qb^q+C)o]
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/* (non-Javadoc) lhn8^hOJ/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :,]S}R
*/ +KK$0pL
public void sort(int[] data) { >POO-8Q
int temp; f~& a-
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); u'9gVU B
} _&{%Wc5W~F
} D\L!F6taS
} Yt1mB[&f^
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} 8q_0,>w%
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冒泡排序: G^h_YjR`*
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package org.rut.util.algorithm.support; DMgBcP
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import org.rut.util.algorithm.SortUtil; [$:,-Q @
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/** '%4P;HO
* @author treeroot vgPUIxB@
* @since 2006-2-2 D(Ix!G/
* @version 1.0 Vb6K:ZnF
*/ #;j9}N
public class BubbleSort implements SortUtil.Sort{ T`L}[?w
vb =CFV#
/* (non-Javadoc) VZxTx0: ,
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~^o=a?L`<
*/ _,;%mK
public void sort(int[] data) { o\4t4}z~'f
int temp; bAhZ7;T~
for(int i=0;i for(int j=data.length-1;j>i;j--){ 4\Di,PPu
if(data[j] SortUtil.swap(data,j,j-1); ?9?4p@
} e9@(/+
} ]S/G\z
} tW6#e(^l6
} u*R7zY
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} a|x8=H
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选择排序: V:^H4WvL\W
2;(W-]V?
package org.rut.util.algorithm.support; N=fz/CD)I
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import org.rut.util.algorithm.SortUtil; $adq7
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/**
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* @author treeroot CyTFb$Z
* @since 2006-2-2 )mD\d|7f
* @version 1.0 Z] { @H
*/ JLUms
public class SelectionSort implements SortUtil.Sort { ,?=KgG1i
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/* 26nBBS,;
* (non-Javadoc) y_%&]/%
* h;Mu[`
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "Pdvmur
*/ }MZan" cfo
public void sort(int[] data) { Q]i[.ME
int temp; f)gGH'yOQ
for (int i = 0; i < data.length; i++) { 6o
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int lowIndex = i; *,jqE9:O
for (int j = data.length - 1; j > i; j--) { 5Bj77?Z
if (data[j] < data[lowIndex]) { MSB%{7'o
lowIndex = j; x-~-nn\O
} pI^=B-7
} "Z9^}
SortUtil.swap(data,i,lowIndex); wiV&xl
} 5Fe-=BX(
} Qx.jCy@
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} %Rn:GK
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Shell排序: |0w~P
s
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package org.rut.util.algorithm.support; \9jpCNdJ
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import org.rut.util.algorithm.SortUtil; WB;J1TpM7
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/** r%[1$mTOR
* @author treeroot S-,kI
* @since 2006-2-2 7,su f }=
* @version 1.0 Su4h'&xx
*/ G-8n
public class ShellSort implements SortUtil.Sort{ rgT%XhUS6f
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/* (non-Javadoc) PdjCv+R6?
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jaa/k@OG
*/ 8l?w=)Qy
public void sort(int[] data) { /C7s vH
for(int i=data.length/2;i>2;i/=2){ Ns~g+C9
for(int j=0;j insertSort(data,j,i); G;9|%yvd8
} {.#j1r4J`
} !G>(j
insertSort(data,0,1); C zpsqTQ
} B%(K0`G#X
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/** g`{Dxb,t
* @param data | @q9{h7
* @param j B{4"$Mi
* @param i xO gq-@`
*/ (WkTQRcN,
private void insertSort(int[] data, int start, int inc) { a[JZ5D
int temp; 5~-}}F
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 69OET_AS>
} XWf7"]%SX
} @2|G|C/]O}
} *|CLO|B)
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} [BE:+ ID3
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快速排序: X%35XC.n
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package org.rut.util.algorithm.support; -YAO3
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import org.rut.util.algorithm.SortUtil; B*BHF95!
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/** W=M<
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* @author treeroot >]C<j4
* @since 2006-2-2 FcY$k%;'Q
* @version 1.0 l [x%I
*/ &LwJ'h+nd
public class QuickSort implements SortUtil.Sort{ iPNd!_
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/* (non-Javadoc) zo87^y5?G
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .0KOnLdK
*/ I(y`)$}
public void sort(int[] data) { 0A@-9w=u
quickSort(data,0,data.length-1); krwf8!bI
} )*+u\x_Hx
private void quickSort(int[] data,int i,int j){ Jn60i6/
int pivotIndex=(i+j)/2; wo$|~
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file://swap (kdC1,E
SortUtil.swap(data,pivotIndex,j);
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int k=partition(data,i-1,j,data[j]); i{4'cdr?
SortUtil.swap(data,k,j); '%3u%;"
if((k-i)>1) quickSort(data,i,k-1); ?F!W#
if((j-k)>1) quickSort(data,k+1,j); XZ!cW=bqS
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} e|35|I '
/** 4h(jw
* @param data r$Yh)rpt:
* @param i NH<Y1t
* @param j ?@yank|
* @return z`;&bg\8
*/ S/KVN(Z
private int partition(int[] data, int l, int r,int pivot) { `f2W;@V0
do{ 54;l*}8Hl
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); t.gq5Y.[
SortUtil.swap(data,l,r); Cbazwq
} eR(\s_`
while(l SortUtil.swap(data,l,r); sf<Q#ieTxY
return l; Ixyvn#ux)
} Bd/}
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} VM=hQYe
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改进后的快速排序: {c&qB`y<.
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package org.rut.util.algorithm.support; jM{(8aUG
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import org.rut.util.algorithm.SortUtil; |C&%S"*+D
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/** ,s\x]bh
* @author treeroot Qo]vpp^[#
* @since 2006-2-2 Xv`2hf
* @version 1.0 XPGL3[w\V
*/ 0EcC
public class ImprovedQuickSort implements SortUtil.Sort { t$ACQ*O
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private static int MAX_STACK_SIZE=4096; myEGibhK
private static int THRESHOLD=10; 3w[<cq.!
/* (non-Javadoc) ~% D^Ga7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) LuQ"E4;nY%
*/ pE$|2v
public void sort(int[] data) { >_|Z{:z]d.
int[] stack=new int[MAX_STACK_SIZE]; Q$/V) 0
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int top=-1; ey'pm\Z
int pivot; a3b2nAI l
int pivotIndex,l,r; u^j8
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stack[++top]=0; 8<E!rn-
stack[++top]=data.length-1; 4r68`<mn[
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while(top>0){ 3ybK6!g`[
int j=stack[top--]; @&!=m]D*
int i=stack[top--]; U)O?|
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pivotIndex=(i+j)/2; ,6S_&<{
pivot=data[pivotIndex]; o|zrD~&$
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SortUtil.swap(data,pivotIndex,j); {mCKTyN+
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file://partition ~0'_K1(H
l=i-1; zgEr ,nF
r=j; vkDZv@
do{ 3I(dC|d
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); f}Ne8]U/Hc
SortUtil.swap(data,l,r); s9ju/+fv
} f.U0E6-(3N
while(l SortUtil.swap(data,l,r); z'vdC
SortUtil.swap(data,l,j); Tx|SAa=V
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if((l-i)>THRESHOLD){ ,(;p(#F>
stack[++top]=i; +cV5h
stack[++top]=l-1; sw 3:HNG=
} >
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if((j-l)>THRESHOLD){ j?d;xj
stack[++top]=l+1; -D&.)N9ctQ
stack[++top]=j; CS^ oiV%{s
} 1B9Fb.i
}mtC6G41Q
} Q2_WH)J 3
file://new InsertSort().sort(data); e]dPF[?7
insertSort(data); twYB=68
} o=QRgdPD
/** ^rxfNcU7
* @param data i/C
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*/ zR3lX}g
private void insertSort(int[] data) { PMz{8
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int temp; >q}
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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=e[
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} 41
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} mK7^:(<.LO
} }(f.uN_v
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} !9e\O5PmO
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归并排序: Q5`+eQ?_\
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package org.rut.util.algorithm.support; <ZHY3
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import org.rut.util.algorithm.SortUtil; ?:{0
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/** "2vNkO##
* @author treeroot =hOj8;2
* @since 2006-2-2 A/Fs?m{7U
* @version 1.0 yPzULO4
*/ hX'z]Am<
public class MergeSort implements SortUtil.Sort{ _4XoUE\\
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/* (non-Javadoc) do?S,'(g
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (:j+[3Ht
*/ +_-)0[+p
public void sort(int[] data) { BW;=i.
int[] temp=new int[data.length]; (TbB?X}
mergeSort(data,temp,0,data.length-1); ||*&g2Y
} A^= Hu,"e
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private void mergeSort(int[] data,int[] temp,int l,int r){ fRv
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int mid=(l+r)/2; :)
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if(l==r) return ; YQB]t=Ha
mergeSort(data,temp,l,mid); QJ(e*/
mergeSort(data,temp,mid+1,r); YfrTvKX
for(int i=l;i<=r;i++){ [X$|dOm'N
temp=data; 1=/MT#d^?
} 5w,YBUp
int i1=l; w7`@=kVx
int i2=mid+1; p)[BB6E
for(int cur=l;cur<=r;cur++){ "$,}|T?Y`
if(i1==mid+1) NBbY## w0
data[cur]=temp[i2++]; @tjZvRtZ
else if(i2>r) 2os6c te
data[cur]=temp[i1++]; )z*$`?)k
else if(temp[i1] data[cur]=temp[i1++]; 7Y @=x#
else )l[7;ZIw$
data[cur]=temp[i2++]; Vbqm]2o&
} 1=o(sIeA
} 3' :[i2[
Bgo"JNM
} 79c 9+
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改进后的归并排序: LF-+5`
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package org.rut.util.algorithm.support; +hKPOFa'
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import org.rut.util.algorithm.SortUtil; 8^f[-^%
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/**
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* @author treeroot iK6<^,]'
* @since 2006-2-2 z}b U\3!
* @version 1.0 zOdasEd8!
*/ 5f^`4pT
public class ImprovedMergeSort implements SortUtil.Sort { fB @pwmu
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private static final int THRESHOLD = 10; ]5)&36
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/* ?GMeA}j
* (non-Javadoc) zx]M/=7,V#
* ezq
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N:gstp
*/ ]TTJr C:
public void sort(int[] data) { [(e`b
int[] temp=new int[data.length]; Jk6/i;4|
mergeSort(data,temp,0,data.length-1); dn.c#,Y
} U}vtVvx
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private void mergeSort(int[] data, int[] temp, int l, int r) { ~V$5 m j
int i, j, k; -WHwz m
int mid = (l + r) / 2; \<MTY:
if (l == r) a\.O L}"
return; yn ?U7`V
if ((mid - l) >= THRESHOLD) ywsz"/=@
mergeSort(data, temp, l, mid); BUy}Rn
else E/ed0'|m
insertSort(data, l, mid - l + 1); XGrxzO|{
if ((r - mid) > THRESHOLD) Rp@}9qijb
mergeSort(data, temp, mid + 1, r); k f K"i
else Zs K'</7
insertSort(data, mid + 1, r - mid); r{:la56Xd
0\ytBxL
for (i = l; i <= mid; i++) { bl=*3qB
temp = data; MgK(gL/&[
} B& f~.UH
for (j = 1; j <= r - mid; j++) { zKAyfn.A
temp[r - j + 1] = data[j + mid]; =B{$U~}
} 5A=xF j{
int a = temp[l]; !E>3N:
int b = temp[r]; "F.J>QBd
for (i = l, j = r, k = l; k <= r; k++) { ^MWW,`
if (a < b) { {Z~VO
data[k] = temp[i++]; 9787uj]Y}H
a = temp; %!hA\S
} else { 7QL) }b.H
data[k] = temp[j--]; >5@ 0lYhH
b = temp[j]; qP .VK?jF|
} );.<Yf{c
} D]>86&
} T6?d`i i1
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/** Pc:'>,3!V3
* @param data t-ReT_D|;
* @param l &)'kX
* @param i '`A67bdq)
*/ K/LaA4
private void insertSort(int[] data, int start, int len) { =VI`CBQ/Um
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); >a]
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} H-y-7PW*~
} oO9iB:w
} PL B=%[
} ++RmaZ
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堆排序: Erymx$@P
i~PZvxt
package org.rut.util.algorithm.support; g8@i_
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import org.rut.util.algorithm.SortUtil; D
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/** $,@+Ua
* @author treeroot =|t1eSzc
* @since 2006-2-2 JU`'?b
* @version 1.0 XXdMp poR
*/ 9*Mg<P"
public class HeapSort implements SortUtil.Sort{ eMMiSO!3
B!C32~[
/* (non-Javadoc) 3G0\i!*t
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [8g\pPQ
*/ !~DkA7i 55
public void sort(int[] data) { i*rv_G|(Zj
MaxHeap h=new MaxHeap(); o\YdL2:X
h.init(data); *} 4;1OVT
for(int i=0;i h.remove(); 8i
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System.arraycopy(h.queue,1,data,0,data.length); leqSS}KU+
} CMf~Yv
"+"dALX{3K
private static class MaxHeap{ H_$f
v_
=:}DD0o*
void init(int[] data){ 97
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this.queue=new int[data.length+1]; 6B P%&RL
for(int i=0;i queue[++size]=data; ~bQ:gArk
fixUp(size); 8k}CR)3@C
} X~VZ61vNu
} >R !I
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private int size=0; TgG)btQ
uPD_s[
private int[] queue; \nt'I;f
WED7]2>
public int get() { gM]/Y6*$b
return queue[1]; \FX3=WW
} xo3)dsX
X7!A(q+h
public void remove() { *VAi!3Rx;
SortUtil.swap(queue,1,size--); "@bk$o=
fixDown(1); G`K7P`m
} os+wTUR^
file://fixdown ,tc]E45
private void fixDown(int k) { obkv ]~
int j; a'.=.eDQ
while ((j = k << 1) <= size) { \shoLp
if (j < size %26amp;%26amp; queue[j] j++; 5%$kAJZC-
if (queue[k]>queue[j]) file://不用交换 <