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。 !ACWv*pW
插入排序: F-)lRGw
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package org.rut.util.algorithm.support; [9WtoA,kx
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import org.rut.util.algorithm.SortUtil; _G!lQ)1
/** [y73
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* @author treeroot .oq!Ys4KA
* @since 2006-2-2 bqXCe\#
* @version 1.0 AFWcTz6 #d
*/ lGI5
public class InsertSort implements SortUtil.Sort{ 6s833Tmb&r
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/* (non-Javadoc) av( d0E}}b
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D@yg)$;z
*/ yWACIaj
public void sort(int[] data) { H V`{YuP
int temp; gOI#$-L
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); *=1;HN3
} &t+
} |#x;}_>7
} 2B8p3A
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} 6rEt!v #K[
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冒泡排序: n<p`OKIV3
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package org.rut.util.algorithm.support; z^Nnt
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import org.rut.util.algorithm.SortUtil; xQ62V11R6
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/** L!3AiAnr
* @author treeroot W>Y8 u8
* @since 2006-2-2 .$DB\jJXjV
* @version 1.0 6u3DxFiTm
*/ oW-Tw@D
public class BubbleSort implements SortUtil.Sort{ N5rY*S
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/* (non-Javadoc) (XJehdB0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I?v)>||Q
*/ XnQd(B`M
public void sort(int[] data) { 2B_6un];W
int temp; ;^:9huN
for(int i=0;i for(int j=data.length-1;j>i;j--){ ch<Fi%)
if(data[j] SortUtil.swap(data,j,j-1); GV1\8OG7
} QeA)@x.p
} Y;je ::"
} i+yqsYKO
} :b;2iBVB
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}
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选择排序: Qw^nN(K!>
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package org.rut.util.algorithm.support; sJX/YGHt
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import org.rut.util.algorithm.SortUtil; !arcQ:T@G
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/** %*<k5#Yq
* @author treeroot <pGPuw|~I
* @since 2006-2-2 g# :|Mjgh
* @version 1.0 {a9Z<P
*/ ??{ (.`}R~
public class SelectionSort implements SortUtil.Sort { -8qLshQ
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/* ]DdD
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* (non-Javadoc) 4x=rew>Ew
* Mk=
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Hjli)*ev
*/ M|FwYF^
public void sort(int[] data) { +&tY&dQQB
int temp; *9%<}z
for (int i = 0; i < data.length; i++) { E=w $r
int lowIndex = i; C/e`O|G
for (int j = data.length - 1; j > i; j--) { ;u,%an<(
if (data[j] < data[lowIndex]) { |hehROUn
lowIndex = j; "OFYVK\]i
} 5Ga>qIM
} \SnW(,`o X
SortUtil.swap(data,i,lowIndex); 3mZX@h@
} O{&5 /xBA
} %,MCnu&Z
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} /^qCJp`
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Shell排序: pq*b"Jku1
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package org.rut.util.algorithm.support; !
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import org.rut.util.algorithm.SortUtil; N{iBVl
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/** 5JDqSz{
* @author treeroot =ALy.^J=
* @since 2006-2-2 JrseU6N
* @version 1.0 |]DZc/
*/ M9]O!{sq
public class ShellSort implements SortUtil.Sort{ gGN[AqR
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/* (non-Javadoc) E@"+w,x)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) AZorz Q]s
*/ u~Q0V J~
public void sort(int[] data) { J'Yj_
for(int i=data.length/2;i>2;i/=2){ tQ'E"u1
for(int j=0;j insertSort(data,j,i); G=!Y ~q g
} q NU\XO`H
} ;e()|
insertSort(data,0,1); 88d0`6K-9
} y ']>J+b0
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/** gnNMuqt
* @param data V8NNIS
* @param j Vfp{7I$#6"
* @param i 6*kY7
*/ Mc~(S$FU$
private void insertSort(int[] data, int start, int inc) {
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int temp; "Z }'u2%\m
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Q0,]Q ]_
} ~m[^|w
} iYHD:cg)~
} h -+vM9j
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} bU=!~W5
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快速排序: kE,~NG9P
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package org.rut.util.algorithm.support; `HgT5}
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import org.rut.util.algorithm.SortUtil; `9s5 *;Z
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/** fa/
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* @author treeroot WY?(C@>s
* @since 2006-2-2 p{t2pfb
* @version 1.0 Sq UoXNw
*/ '_g8fz
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public class QuickSort implements SortUtil.Sort{ W&}R7a@:<~
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/* (non-Javadoc) ^]Lr_k
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7}%3Aw6]S
*/ ^g~Asz5]
public void sort(int[] data) { &y mfA{s
quickSort(data,0,data.length-1); C:_!zY'z
} %xyt4}-)m
private void quickSort(int[] data,int i,int j){ aoco'BR F
int pivotIndex=(i+j)/2; _z)G!_7.>\
file://swap JnmJN1@I
SortUtil.swap(data,pivotIndex,j); nC qUg_{D
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int k=partition(data,i-1,j,data[j]); I&YYw8&
SortUtil.swap(data,k,j); !0fpD'f!n
if((k-i)>1) quickSort(data,i,k-1); UALwr>+VJ
if((j-k)>1) quickSort(data,k+1,j); WA8Qt\Q
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} jkFS=eonK
/** r{#od
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* @param data w1rB"rB?
* @param i e~W35Y>A
* @param j D+LeZBJ
* @return yps7MM-r
*/ [O&2!x
private int partition(int[] data, int l, int r,int pivot) { ]3NH[&+
do{ "|]'\4UdzQ
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); u#\=g:
SortUtil.swap(data,l,r); x{Gb4=?l
} TRcY!
while(l SortUtil.swap(data,l,r); :upi2S_e
return l; \Z
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} )j4]Y dJ
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} ?Re@`f+*
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改进后的快速排序: s)_7*DY
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package org.rut.util.algorithm.support; :w#Zs)N
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import org.rut.util.algorithm.SortUtil; {|^9y]VFu
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} `
/** tUGnD<P
* @author treeroot s59v*
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* @since 2006-2-2 z=N'evx~
* @version 1.0 AVOzx00U
*/ {e<J}-/?
public class ImprovedQuickSort implements SortUtil.Sort { (%oZgvM
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private static int MAX_STACK_SIZE=4096; 8,a&i:C
private static int THRESHOLD=10; 9<.FwV>
/* (non-Javadoc) F6}Pwz[c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) DFwkd/3"
*/ ,1Suq\
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public void sort(int[] data) { c;&m}ImLe.
int[] stack=new int[MAX_STACK_SIZE]; Pc nr
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int top=-1; ?>1AT==wI
int pivot; 7;5?2)+=6
int pivotIndex,l,r; &[3 xpi{v
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stack[++top]=0; ES;7_ .q
stack[++top]=data.length-1; "e69aAA,
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while(top>0){ [~W"$sT
int j=stack[top--]; #@;RJJZg
int i=stack[top--]; mK%!9F
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pivotIndex=(i+j)/2; >e/;
pivot=data[pivotIndex]; 'D1
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SortUtil.swap(data,pivotIndex,j); ua0`&,a3I
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file://partition dFjB &#Tl
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r=j; WLP A51R
do{ Qi&!IG
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); X{| 1E85fl
SortUtil.swap(data,l,r); 7Wmk"gp
} u&I?LZ-=,
while(l SortUtil.swap(data,l,r); TKx.`Cf
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SortUtil.swap(data,l,j); 7ib~04
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if((l-i)>THRESHOLD){ mv/'H^"[_
stack[++top]=i; `4'v)!?
stack[++top]=l-1; NN\% X3ri"
} lf4-Ci*X
if((j-l)>THRESHOLD){ 05gU~6AF
stack[++top]=l+1; D(Pd?iQIO
stack[++top]=j; yc8iT`
} (*;b\h
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} 8Focs p2
file://new InsertSort().sort(data); X-|`|>3E
insertSort(data); $ z1u>{
} 7m~+HM\
/** Uq<c+4)5
* @param data (x@|6Sb
*/ o|>2X[T
private void insertSort(int[] data) { 94=Wy-
int temp; zy(sekX;
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); k:Da+w_'1
} t.t$6+"5We
} awB1ryrOF
} 4'Z=T\:
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} b2aPo M=
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归并排序: *NS:X7p!V
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package org.rut.util.algorithm.support; S;kI\;
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import org.rut.util.algorithm.SortUtil; \l?\%aqm
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/** Ck%nNy29
* @author treeroot eGHxiC
* @since 2006-2-2 ^ b{0|:
* @version 1.0 J(ZYoJ
*/ ]OL
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public class MergeSort implements SortUtil.Sort{ 7<*sP%6bD
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/* (non-Javadoc) %"r3{Hs
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (TM1(<j
*/
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public void sort(int[] data) { &|'1.^f@;E
int[] temp=new int[data.length]; #K.OJJaG
mergeSort(data,temp,0,data.length-1); 12U1DEd>-
} 0k>bsn/j
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private void mergeSort(int[] data,int[] temp,int l,int r){ F" FGPk
int mid=(l+r)/2; OBqaf
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if(l==r) return ; a6wPkf7-H
mergeSort(data,temp,l,mid); l ~CYxO
mergeSort(data,temp,mid+1,r); dYrw&gn
for(int i=l;i<=r;i++){ -"Wp L2qD
temp=data; 0-M.>fwZ=
} \b95CU
int i1=l; .K]n<+zW
int i2=mid+1; .:A9*,
for(int cur=l;cur<=r;cur++){ bCHJLtDQ
if(i1==mid+1) m/Ou$
data[cur]=temp[i2++]; cK%Sty'8+
else if(i2>r) xa5^h]o
data[cur]=temp[i1++]; i2j_=X-
else if(temp[i1] data[cur]=temp[i1++]; m^Qc9s#D
else \2KwF}[m
data[cur]=temp[i2++]; 48vKUAzx`
} S+
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} )ZC0/>R
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} FBJw (.Jr
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改进后的归并排序: -L%tiz`_
3qwi)nm
package org.rut.util.algorithm.support; w/BaaF.0
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import org.rut.util.algorithm.SortUtil; -7,xjn
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/** EVZuwbO)|
* @author treeroot &o%IKB@
* @since 2006-2-2 j;6kN-jx
* @version 1.0 21Mr2-#z
*/ *WdnP.'Y
public class ImprovedMergeSort implements SortUtil.Sort { qIIc>By(\"
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private static final int THRESHOLD = 10; `1k0wT(
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/* r#hA kOw
* (non-Javadoc) YaU)66=u
* vncLB&@7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) DdDwMq
*/ @c,Qj$\1
public void sort(int[] data) { fGS5{dti
int[] temp=new int[data.length]; 'qel3Fs"
mergeSort(data,temp,0,data.length-1); kEiWE|
} $fZVh%
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private void mergeSort(int[] data, int[] temp, int l, int r) { _=l8e-6r
int i, j, k; n1n->l*HGP
int mid = (l + r) / 2; R@zl?>+
if (l == r) xNDX(_U>\
return; f/+UD-@%m
if ((mid - l) >= THRESHOLD) OwRH
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mergeSort(data, temp, l, mid); 7HfA{.|m
else L
*",4!
insertSort(data, l, mid - l + 1); bit@Kv1<C
if ((r - mid) > THRESHOLD) ]$7dkP
mergeSort(data, temp, mid + 1, r); 4:m/w!q$
else d0ZbusHHb
insertSort(data, mid + 1, r - mid); QE8;Jk-
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for (i = l; i <= mid; i++) { p+6L qk<
temp = data; P(h[QAM
} ))Q3;mI"
for (j = 1; j <= r - mid; j++) { K`%{(^}.
temp[r - j + 1] = data[j + mid]; C.su<B?
} ,Hq*zc c
int a = temp[l]; cvSr><(
int b = temp[r]; O$SQzLZx&
for (i = l, j = r, k = l; k <= r; k++) { q8 jI
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if (a < b) { Igb@aGA
data[k] = temp[i++]; hHXTSk2
a = temp; (.D|%P
} else { BuwJR
Ql.
data[k] = temp[j--]; 3hUU$|^4gm
b = temp[j]; ]H[%PQ r`Z
} :x*#RnRr.
} U42B(ow
} ?
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/** lJ y\Ky(*
* @param data A\xvzs.d
* @param l *Y"j 0Yob
* @param i f\cm84
*/ v>ygr8+C,
private void insertSort(int[] data, int start, int len) { [&_c.ti
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); #ArMX3^+w7
} d4(!9O.\
} w+MCOAB
} !u0|{6U
} (zv)cw%
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堆排序: C{gY*+
LS(J%\hMDm
package org.rut.util.algorithm.support; <