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。 pm=m~
插入排序: guG&3{&\s
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package org.rut.util.algorithm.support; WvZt~x&2
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import org.rut.util.algorithm.SortUtil; iu?gZVyka
/** {_mVfFG
* @author treeroot G
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* @since 2006-2-2 UwxszEHC
* @version 1.0 }<YU4EW
*/ /,_m\JkwL
public class InsertSort implements SortUtil.Sort{ %Zp|1J'"
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/* (non-Javadoc) ?qb35
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \,fa"^8
*/ ~yt 7L,OQ
public void sort(int[] data) { `^] D;RfE
int temp; >(-A"jf
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); *4e?y
} >C19Kie72
} ]}kw'&
} *7E#=xb
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} I(Z\$
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冒泡排序: zE<Iv\Q
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package org.rut.util.algorithm.support; 14"+ctq
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import org.rut.util.algorithm.SortUtil; i)'tt9f$
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/** T9I$6HAi
* @author treeroot eXMIRus(
* @since 2006-2-2 ZSs@9ej
* @version 1.0 $C sE[+k1
*/ 5|=J\Lp2I
public class BubbleSort implements SortUtil.Sort{ 9|lLce$
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/* (non-Javadoc) KzP{bK5/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -|Zzs4bx
*/ ALy7D*Z]w
public void sort(int[] data) { /`l;u7RD
int temp; }W'4(V;:
for(int i=0;i for(int j=data.length-1;j>i;j--){ ,<* I5:
if(data[j] SortUtil.swap(data,j,j-1); n0!2-Q5U)h
} f@$W5*j
} +ZwoA_k{
} !:m.-TE
} 2Kf/I d1
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} &y}7AV
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选择排序: J8!2Tt
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package org.rut.util.algorithm.support; p0WUF\"
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import org.rut.util.algorithm.SortUtil; +C8O"
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/** rVqQo`K\
* @author treeroot .}/8]
* @since 2006-2-2 $L 8>Ha}
* @version 1.0 rD~/]y)t
*/ .wD
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public class SelectionSort implements SortUtil.Sort { `!/[9Y#H p
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/* GTM0Qvf?
* (non-Javadoc) u\Ylo.)b
* $TmEVC^0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g{Al:}u>
*/ 8W{M}>;[9
public void sort(int[] data) { O7Jux-E1C
int temp; =`QYy-b X
for (int i = 0; i < data.length; i++) { uQKQC?w
int lowIndex = i; ,puoq{
for (int j = data.length - 1; j > i; j--) { 5, ,~k=
if (data[j] < data[lowIndex]) { |y[I!JdR
lowIndex = j; 7H5VzV
} ewU*5|*[
} ?W{+[OXs
SortUtil.swap(data,i,lowIndex); J?w_DQa
} XZ~kXE;B(
} .Pponmy
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} Q $}#&
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Shell排序: XZb=;tYo
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package org.rut.util.algorithm.support; 6qHD&bv\%C
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import org.rut.util.algorithm.SortUtil; < j:\;mi;
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/** oj -
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* @author treeroot le\-h'D
* @since 2006-2-2 *,4rYb7I w
* @version 1.0 $G`CXhbl
*/ Vml
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public class ShellSort implements SortUtil.Sort{ S>0%jCjW
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/* (non-Javadoc) K2zln_W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ywAvqT,
*/ dGYR
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public void sort(int[] data) { M; wKTTQy
for(int i=data.length/2;i>2;i/=2){ c$!?4z_.
for(int j=0;j insertSort(data,j,i); Qc3d<{7\~
} 7K\v=
} bRxI7 '
insertSort(data,0,1); Ze~P6
} Uv(R^50>
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/** 7]vmtlL
* @param data J:N(U0U
* @param j <"5l<E
* @param i 5G}4z>-]F)
*/ fA6IW(_bi
private void insertSort(int[] data, int start, int inc) { {&n- @$?
int temp; zsXgpnlHT
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Pp-N2t86#2
} f?UI+TU
} k9}8xpH
} ;_I>`h"r
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} (N9-YP?qm
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快速排序: x#EE_i/W
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package org.rut.util.algorithm.support; gB'ajX=OA/
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import org.rut.util.algorithm.SortUtil; ;
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/** ed,A'S=d
* @author treeroot T/3LJGnY
* @since 2006-2-2 L;RE5YrH%6
* @version 1.0 lg aSIXDK
*/ EfEgY|V0
public class QuickSort implements SortUtil.Sort{ eP @#I^_
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/* (non-Javadoc) JD$g%hcVZa
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YGo?%.X
*/ Wk0E7Pr
public void sort(int[] data) { IE`3I#v
quickSort(data,0,data.length-1); r%.k,FzGZY
} 0V1GX~2
private void quickSort(int[] data,int i,int j){ TmG);B}
int pivotIndex=(i+j)/2; ?XHQdN3e
file://swap G?$@6
SortUtil.swap(data,pivotIndex,j); Ab@G^SLX
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int k=partition(data,i-1,j,data[j]); 0F |t@?S
SortUtil.swap(data,k,j); 61S;M8tNv
if((k-i)>1) quickSort(data,i,k-1); Y"mFUW4
if((j-k)>1) quickSort(data,k+1,j); Keh=>K)T
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} G4@r_VP \
/** *D?_,s
* @param data "U}kp#)
* @param i l
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* @param j Vgm'&YT
* @return IEhD5?
*/ j L|6i-?!
private int partition(int[] data, int l, int r,int pivot) { =
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do{ c<_%KL&R
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); |UB$^)Twb
SortUtil.swap(data,l,r); /3ohm|!rW
} +Uq|Yh'Q
while(l SortUtil.swap(data,l,r); qq5X3K2&
return l; =-2~>B
} <,M"kF:
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} 3ay},3MCV%
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改进后的快速排序: /pj[c;aO
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package org.rut.util.algorithm.support; 9hA`I tS
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import org.rut.util.algorithm.SortUtil; = QBvU)Ki
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/** nQiZ6[L
* @author treeroot 8ZY]-%
* @since 2006-2-2 ;M3%t=KV
* @version 1.0 ]>X_E%`G<b
*/ `dZ|Ko%k
public class ImprovedQuickSort implements SortUtil.Sort { .TGw+E1k
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private static int MAX_STACK_SIZE=4096; LCB-ewy#E
private static int THRESHOLD=10; -uYxc=4Lh
/* (non-Javadoc) ;QBS0x\f@
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) : "85w#r
*/ s)E \
public void sort(int[] data) { TDH^x1P
int[] stack=new int[MAX_STACK_SIZE]; O%EA,5U.
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int top=-1;
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int pivot; E#J})cPzw
int pivotIndex,l,r; f!'i5I]
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stack[++top]=0; @"7S$@cO
stack[++top]=data.length-1; $XF$ n#ua
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while(top>0){ 2o SM|
int j=stack[top--]; /7UvV60
int i=stack[top--]; h5P_kZJ
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pivotIndex=(i+j)/2; K7RAmX
pivot=data[pivotIndex]; P6v ANL-B
{ M**a
SortUtil.swap(data,pivotIndex,j); 4m0^
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file://partition zy,SL
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r=j; `dvg5qQ
do{ 3}|[<^$
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ,\M77V
SortUtil.swap(data,l,r); YlrN^rO
} K0gQr.J53
while(l SortUtil.swap(data,l,r); q94;x|63
SortUtil.swap(data,l,j); ;%e)t[5
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if((l-i)>THRESHOLD){ DPI[~
stack[++top]=i; zZ%[SW&vC
stack[++top]=l-1; tj13!Cc}e`
} ,:t,$A
if((j-l)>THRESHOLD){ Z*k(Q5&U
stack[++top]=l+1; k'o[iKlu
stack[++top]=j; J0!V (
} 1B;2 ~2X
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} A*OqUq/H`;
file://new InsertSort().sort(data); -#ZLu.
insertSort(data); *`H*@2
} pAy4%|(
/** =z'(FP5!0
* @param data c""&He4zp
*/ TE
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private void insertSort(int[] data) { F vkyp"W3
int temp; jqaX|)8|$
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;E.]:Ia~
} ,U\s89
} QY;(Ny/(y
} t{>K).'
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} ;I4vPh5Q
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归并排序: p~w] ~\
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package org.rut.util.algorithm.support; roQI;gq^
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import org.rut.util.algorithm.SortUtil; [^"*I.Z_
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/** 4A2}3$c9
* @author treeroot \ptO4E
* @since 2006-2-2 DkWp
* @version 1.0 CP7Fe{P
*/ 8B GZ
public class MergeSort implements SortUtil.Sort{ }B-$}
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/* (non-Javadoc) QD@O!};
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?\Z pVL<>
*/ MH.+pqIv^
public void sort(int[] data) { 6m_mma_,&
int[] temp=new int[data.length]; aF
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mergeSort(data,temp,0,data.length-1); lx+;<la
} F*KQhH7Gf
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private void mergeSort(int[] data,int[] temp,int l,int r){ Ph=NH8
int mid=(l+r)/2; HA0!>_I dC
if(l==r) return ; :Qge1/
mergeSort(data,temp,l,mid); W:i Q&[f
mergeSort(data,temp,mid+1,r); RhowhQ) G
for(int i=l;i<=r;i++){ c]M+|R5
temp=data; cpOt?XYR~
} hL3up] pZ
int i1=l; g7zl5^o3j
int i2=mid+1; $]DuO1H./
for(int cur=l;cur<=r;cur++){ G=cRdiy`C
if(i1==mid+1) t<v.rb
data[cur]=temp[i2++]; +@rFbsyJ.
else if(i2>r) 5=?P6I_$G
data[cur]=temp[i1++]; $4{sPHi)I
else if(temp[i1] data[cur]=temp[i1++]; m \)B=H!bz
else MN<LZC%$
data[cur]=temp[i2++]; eke[{%L
} +
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} IS]A<}j/-
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} p :xyy*I
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改进后的归并排序: ZH
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')q0VaohC
package org.rut.util.algorithm.support; Wr[LC&
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import org.rut.util.algorithm.SortUtil; q1VKoKb6\:
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/** |qX?F`
* @author treeroot NMkP#s7.y
* @since 2006-2-2 qraXAQ
* @version 1.0 x"z\d,O%W
*/ Tr?p/9.m
public class ImprovedMergeSort implements SortUtil.Sort { g4^-B
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private static final int THRESHOLD = 10; GN|"RuQ
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/* |.c4y*
* (non-Javadoc) |m-N5$\IC
* *y4g\#o.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OL\-SQ&
*/ ?6_]^:s
public void sort(int[] data) { &oMEz 0
int[] temp=new int[data.length]; uj3`M9
mergeSort(data,temp,0,data.length-1); #2^0z`-\_z
} F${sEtH
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private void mergeSort(int[] data, int[] temp, int l, int r) { WHC/'kvF
int i, j, k; r-T1^u
int mid = (l + r) / 2; 5~h)pt47
if (l == r) zLl-{Kk
return; vl/!w2
if ((mid - l) >= THRESHOLD) }[eUAGhDU
mergeSort(data, temp, l, mid); Zz} o t
else }Cu:BD.zQ
insertSort(data, l, mid - l + 1); OmBM)g
if ((r - mid) > THRESHOLD) sK%b16#
mergeSort(data, temp, mid + 1, r); YIk@{V
else ft/k-64
insertSort(data, mid + 1, r - mid); +k6`
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for (i = l; i <= mid; i++) { %i\rw*f
temp = data;
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} P.Tnq
for (j = 1; j <= r - mid; j++) { e;vI XJE
temp[r - j + 1] = data[j + mid]; ]pm/5|
} uYeb RCdR
int a = temp[l]; boiP_*|M Y
int b = temp[r]; 4(htdn6 \
for (i = l, j = r, k = l; k <= r; k++) { T}!9T!(HdF
if (a < b) { qq!ZYWy2
data[k] = temp[i++]; wp~}1]g
a = temp; 4Y?fbb<
} else { &~eCDlX/
data[k] = temp[j--]; [lIX&!T"
b = temp[j]; d>Tv?'o`q
} <7y/)b@
} o+x%q<e;c
} pS8\ B
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/** w#1BHx
* @param data }h1BAKg
* @param l {eU>E/SQ
* @param i p@78Xmu?q
*/ UG.:D';3,
private void insertSort(int[] data, int start, int len) { v^eAQoFLhN
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); >C,0}lj
} rZ,qHM
} tzN9d~JZ
} ds*gL ~k^
} 1R_@C.I
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堆排序: P:g!~&Q
Q7u|^Gu,5
package org.rut.util.algorithm.support; #c:@oe4v
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