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。 md,KRE
插入排序: 7Ie=(x8):
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package org.rut.util.algorithm.support; fm L8n<1
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import org.rut.util.algorithm.SortUtil; 6bPl(.(3
/** 0U~*uDU
* @author treeroot Mi;Pv*
* @since 2006-2-2 o{hX?,4i
* @version 1.0 B$n 1k45
*/ SgYMPBh
public class InsertSort implements SortUtil.Sort{ }'*6 A
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/* (non-Javadoc) :yRv:`r3Lt
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2$ &B@\WY
*/ QIg'js$W
public void sort(int[] data) { 3=yfbO<-
int temp; ITg<u?z_
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~GcWG4
} ?(n v_O
} Xdwpn+7s
} ,ga6
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} <uxLG;R
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冒泡排序: 2v2XU\u{t
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package org.rut.util.algorithm.support; QZtQogNy#
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import org.rut.util.algorithm.SortUtil; v`{N0 R
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/** #?V rt,n
* @author treeroot Inn{mmz
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* @since 2006-2-2 %pxO<O
* @version 1.0 *\(z"B
*/ * k<@
public class BubbleSort implements SortUtil.Sort{ {0j_.XZ
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/* (non-Javadoc) 3%hq<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :PtZKt;~X
*/ ~USt&?
public void sort(int[] data) { 1Qu@pb^
int temp; .r2*tB).
for(int i=0;i for(int j=data.length-1;j>i;j--){ 9Msy=qvYG
if(data[j] SortUtil.swap(data,j,j-1); z~ywFk}KGd
} R|v'+bv
} H]pI$t3~
} yIrJaS-
} Zk`yd8C
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} o<G#%9j
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选择排序:
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package org.rut.util.algorithm.support; Pc_aEBq
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import org.rut.util.algorithm.SortUtil; "4;nnq
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/** -(t7>s
* @author treeroot pF4Z4?W
* @since 2006-2-2 =E5bM_P<K
* @version 1.0 __2<v?\
*/ ==& y9e
public class SelectionSort implements SortUtil.Sort { 2ozh!8aL
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/* jx]P: ]
* (non-Javadoc) W*t]
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @phVfP"M
*/ KWZhCS?[(
public void sort(int[] data) { qh:Bc$S
int temp; aPVzOBp
for (int i = 0; i < data.length; i++) { 3f] ;y<Km
int lowIndex = i; QYboX~g~p
for (int j = data.length - 1; j > i; j--) { =29IHL3
if (data[j] < data[lowIndex]) { j/z=<jA
lowIndex = j; >m>F {v
} ca{MJz'
} w?8SQI,~X
SortUtil.swap(data,i,lowIndex); ;~EQS.Qp
} 5$:
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} !:^q_q4
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Shell排序: <;6{R#Tuh
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package org.rut.util.algorithm.support; "FWx;65CR
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import org.rut.util.algorithm.SortUtil; p 1'l D
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/** BVw2skOT
* @author treeroot &ASR2J
* @since 2006-2-2 ujZ`T0
* @version 1.0 #cu{AdK
*/ _cX}!d!j
public class ShellSort implements SortUtil.Sort{ @"-\e|[N
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/* (non-Javadoc) V0=%$tH
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ];OvV ,*
*/ gvA}s/
public void sort(int[] data) { Dz(\ ?
for(int i=data.length/2;i>2;i/=2){ S^eem_C
for(int j=0;j insertSort(data,j,i); 5e/YEDP
} x,!Dd
} .9rYBy
insertSort(data,0,1); 4|=>gdW)KN
} ?vFy3
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/** U`%t&7)
* @param data LE\=Y;%
* @param j ->8Kd1^F
* @param i "XR=P>
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*/ wlT8|
private void insertSort(int[] data, int start, int inc) { STp9Gh-
int temp; vR!+ 8sy$
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); JaCX}[R
} m&:&z7^p
} zj1~[$
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快速排序: JWixY/
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package org.rut.util.algorithm.support; >fH0>W+!
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import org.rut.util.algorithm.SortUtil; 6ZqU:^3
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/** {A/r)
* @author treeroot EtKq.<SJ
* @since 2006-2-2 j_~KD}
* @version 1.0 2R[v*i^S
*/ /jG?PZ=m
public class QuickSort implements SortUtil.Sort{ }a7d(7
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/* (non-Javadoc) R2,9%!iiX
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m+<&NDj.
*/ #\0m(v
public void sort(int[] data) { T/_u;My;
quickSort(data,0,data.length-1); BJj'91B[d
} H9mN nZ_k
private void quickSort(int[] data,int i,int j){ i]v3CY|3AI
int pivotIndex=(i+j)/2; ye^x>a['
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SortUtil.swap(data,pivotIndex,j); srVWN:uuH
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int k=partition(data,i-1,j,data[j]); 2d D"^z{
SortUtil.swap(data,k,j); o,*m,Qc
if((k-i)>1) quickSort(data,i,k-1); uUI#^ A
if((j-k)>1) quickSort(data,k+1,j); Qr.{_M
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} b`jR("U
/** :_8K8Sa
* @param data ;m]V12
* @param i ZcN0:xU
* @param j C/k#gLF`
* @return Kh]es,$D
*/ j3Od7bBS]
private int partition(int[] data, int l, int r,int pivot) { 5 pCicwea#
do{ <=4$.2ym
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); =Z\q``RBy
SortUtil.swap(data,l,r); 4uXGpsL
} Dvg'
while(l SortUtil.swap(data,l,r); OrkcY39"~a
return l; N]P~`)
} gP%<<yl
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改进后的快速排序: Y~UuT8-c
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package org.rut.util.algorithm.support; Y25`vE(
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import org.rut.util.algorithm.SortUtil; ef)RlzLOq
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/** Wg|6{'a
* @author treeroot ug9Ja)1|
* @since 2006-2-2 ;jzJ6~<
* @version 1.0 %J*1F
*/ Q9bnOvKe|
public class ImprovedQuickSort implements SortUtil.Sort { xA3_W
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private static int MAX_STACK_SIZE=4096; T9yI%;D
private static int THRESHOLD=10; )G2Bx+Z;L
/* (non-Javadoc) Ne
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -'&l!23a~
*/ [<@L`ki
public void sort(int[] data) { V^s, 3C
int[] stack=new int[MAX_STACK_SIZE]; $_<[kci%
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int top=-1; jJ2rfdfj
int pivot; gq('8*S
int pivotIndex,l,r; ?p{-Yp*h
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stack[++top]=0; rmjuNy=(
stack[++top]=data.length-1; =oSD)z1c?x
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while(top>0){ 4Wl`hF
int j=stack[top--]; K_MEd1l
int i=stack[top--]; g2f"tu_/%
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pivotIndex=(i+j)/2; +Z"Wa0wA
pivot=data[pivotIndex]; dpW`e>o
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SortUtil.swap(data,pivotIndex,j); ]-wyZ +a
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do{ 6nA9r5Ghv
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); o "r
SortUtil.swap(data,l,r); YIN* '!N
} #?Ix6 {R
while(l SortUtil.swap(data,l,r); ,zjz "7'
SortUtil.swap(data,l,j); Y~Uf2(7b5
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if((l-i)>THRESHOLD){ $?ss5:
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stack[++top]=i; ?8753{wk
stack[++top]=l-1; ~=yU%5 s@
} }oD^tU IK
if((j-l)>THRESHOLD){ f#c}}>V8
stack[++top]=l+1; 6GuTd
stack[++top]=j; @.L#u#
} ^C
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} DlzL(p@r
file://new InsertSort().sort(data); 2z;nPup,
insertSort(data); pauO_'j_1p
} ?<J~SF Tt
/** |K.I%B
* @param data @Mya|zb
*/ B}7j20:Z
private void insertSort(int[] data) { dsX"S;`v
int temp; Lum=5zDo
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); B/16EuH#
} EwBrOq`C
} b0}dy\dnQ
} d\-*Fmp(S
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归并排序: h8WM4
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package org.rut.util.algorithm.support; GYtgw9 "Y
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import org.rut.util.algorithm.SortUtil; ]R~hzo
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/** +/_XSo
* @author treeroot iklZ[G%A0
* @since 2006-2-2 l>|scs;TI
* @version 1.0 y=Eb->a){
*/ sC"w{_D@*4
public class MergeSort implements SortUtil.Sort{ 6# bTlmcg
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/* (non-Javadoc) ;~1xhpTk
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w.rcYywI
*/ B|o@|zF
public void sort(int[] data) { J<0sT=/2$
int[] temp=new int[data.length]; QUkP&