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。 WvbEh|y
插入排序: FT4l$g7"
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package org.rut.util.algorithm.support; > [8#hSk
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import org.rut.util.algorithm.SortUtil;
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/** 5A,=vE
* @author treeroot 3`ml;
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* @since 2006-2-2 j[H0SBKC
* @version 1.0 Ge0Lb+<G
*/ =1/q)b,p)
public class InsertSort implements SortUtil.Sort{ zv@bI~3~
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/* (non-Javadoc) Th/{x
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /ISLVp%H
*/ Q ]0r:i=
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public void sort(int[] data) { O a1'oYIHg
int temp; eK*W=c#@
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); kXMP=j8
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冒泡排序: 7O9n!aJ
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package org.rut.util.algorithm.support; '{CWanTPi
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import org.rut.util.algorithm.SortUtil; qS|AdkNL
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/** =R2l3-HA=
* @author treeroot DU`v J2
* @since 2006-2-2 'QnW9EHLF
* @version 1.0 |e+aZ%g
*/ Y!it!9
public class BubbleSort implements SortUtil.Sort{ Pr2;Kp
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/* (non-Javadoc) 5v+L';wx[T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?eVj8 $BQo
*/ %!yxC
public void sort(int[] data) { D$mf5G &
int temp; DUhT>,~]
for(int i=0;i for(int j=data.length-1;j>i;j--){ &\c5!xQ9*
if(data[j] SortUtil.swap(data,j,j-1); Zsgi{
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} 1EuK,:x
} EzUPah
} (s;zRb!4L
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} oAaf)?8
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选择排序: E)Srj~$d
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package org.rut.util.algorithm.support; 97(n\Wt2
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import org.rut.util.algorithm.SortUtil; fSr`>UpxC
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/** jQkUNPHu
* @author treeroot }I)z7l.
* @since 2006-2-2 pKnIQa[c
* @version 1.0 l:x_j\
*/ | 4 `.#4
public class SelectionSort implements SortUtil.Sort { g/!Otgfu
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/* j37:
* (non-Javadoc) p8_2y~!
* juXC?2c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |w4(rs-
*/ l%@dE7<Z
public void sort(int[] data) { 5/k)\`
int temp; E::<;9
for (int i = 0; i < data.length; i++) { 4V1|jy3
int lowIndex = i; &62`Wr 0C
for (int j = data.length - 1; j > i; j--) { p#z;cjfSt
if (data[j] < data[lowIndex]) { r.9 $y/5
lowIndex = j; 8>m1UO Nr
} ;}f6Y['z
} o3fR3P%$
SortUtil.swap(data,i,lowIndex); gn364U a
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Shell排序: C5cFw/',
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package org.rut.util.algorithm.support; "AV1..mu
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import org.rut.util.algorithm.SortUtil; Bg5;Q)
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/** C9G U6Ao
* @author treeroot tjt=N\;
* @since 2006-2-2 /m;O;2"
* @version 1.0 #.~.UHt
*/ 2}59 7Hb
public class ShellSort implements SortUtil.Sort{ H RWZ0 '
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/* (non-Javadoc) jzT;,4poy
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K7+^Yv\YQx
*/ 9*f2b.Aj
public void sort(int[] data) { L,GShl 0S
for(int i=data.length/2;i>2;i/=2){ C CLfvex
for(int j=0;j insertSort(data,j,i); eK\|SQb
} py}.00it
} 0@:Y>qVa
insertSort(data,0,1); O~nBz):2
} v]l&dgoT
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/** %}\ vW
* @param data K90D1sD
* @param j {jrZ?e-q
* @param i IruyE(;HS
*/ G3oxa/mO
private void insertSort(int[] data, int start, int inc) { #*[,woNk
int temp; 2lX[hFa5
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); vI4%d,
} 'M47'{7T
} sb8z_3
} FfZ{%E
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} u=1B^V,6V
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快速排序: q#l.A?rK\
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package org.rut.util.algorithm.support; X+/{%P!w
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import org.rut.util.algorithm.SortUtil; -WQ_[t9l
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/** Wdei`u[
* @author treeroot iH($rSE
* @since 2006-2-2 K]*g, s+
* @version 1.0 *Pa2bY3:
*/ &n}8Uw0440
public class QuickSort implements SortUtil.Sort{ QJ[(Y@ O6a
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/* (non-Javadoc) ru#T^AI*^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z $ p^v*y
*/ )6PJ*;p-
public void sort(int[] data) { ,?P8m"
quickSort(data,0,data.length-1); Lw!?T(SK
} K<Yn_G
private void quickSort(int[] data,int i,int j){ mrhsKmH
int pivotIndex=(i+j)/2; 2<p5_4"-U*
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SortUtil.swap(data,pivotIndex,j); ^yzo!`)fso
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int k=partition(data,i-1,j,data[j]); 0+$hkd n
SortUtil.swap(data,k,j); 2&zn^\%"
if((k-i)>1) quickSort(data,i,k-1); & y#y>([~
if((j-k)>1) quickSort(data,k+1,j); 9_g>BI;"8
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} D}=/w+
/** GGFar\
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* @param data j+z'
* @param i AAeQ- nbP
* @param j Dx p>
* @return }rFsU\]:q
*/ i{%z
private int partition(int[] data, int l, int r,int pivot) { ?,A}E|jZ
do{ kKFuTem_3
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); )Tyky%P+iI
SortUtil.swap(data,l,r); 9q@z[+X
} X}n&`y{/
while(l SortUtil.swap(data,l,r); 1]a*Oer}
return l; _OyP>|L'
} +9=@E
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} B}l}Aq8
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改进后的快速排序: E.5*Jr=J
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package org.rut.util.algorithm.support; FFD*e-i
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import org.rut.util.algorithm.SortUtil; uFA|rX
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/** 0ECO/EuCg
* @author treeroot n $D}0wSM/
* @since 2006-2-2 #`YxoY `
* @version 1.0 XcJ'm{=
*/ [[.&,6
public class ImprovedQuickSort implements SortUtil.Sort { -KJ}.q>upq
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private static int MAX_STACK_SIZE=4096; ~/]\iOL
private static int THRESHOLD=10; GlV-}5W
/* (non-Javadoc) ;%b <uV
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -.+KCt G$+
*/ Y]`lEq%
public void sort(int[] data) { h&:Q$*A>
int[] stack=new int[MAX_STACK_SIZE]; sqMNon`5
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int top=-1; 0pZ.; /<{
int pivot; s)`1Rf
int pivotIndex,l,r; g4.'T51
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stack[++top]=0; iuH8g
stack[++top]=data.length-1; qxg7cj2
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while(top>0){ Uy_}@50"l
int j=stack[top--]; LB64W ;#h
int i=stack[top--]; P?3YHa^up
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pivotIndex=(i+j)/2; 5~kW-x
pivot=data[pivotIndex]; cx1WGbZ
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SortUtil.swap(data,pivotIndex,j); q~:'R
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file://partition y(wqcDok|n
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r=j; Y9I #Q
do{ 1o5Y9#7
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); x1 &b@u
SortUtil.swap(data,l,r); {W:)oh>
} dl3LDB
while(l SortUtil.swap(data,l,r); /!&b'7y
SortUtil.swap(data,l,j); c?V*X-
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if((l-i)>THRESHOLD){ ;nAg4ll8Q
stack[++top]=i; 7zJh;f/
stack[++top]=l-1; ^V0{Ew/x
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if((j-l)>THRESHOLD){ ;'WzfJ!q
stack[++top]=l+1; -Uhl9
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stack[++top]=j; q!9v}R3(
} v|,[5IY
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} ^S;RX*
file://new InsertSort().sort(data); J}Z_.:JO(w
insertSort(data); rz%[o,s
} A aF5`
/** kgbr+Yw2X
* @param data >1)@n3. <O
*/ 1X!f!0=g+
private void insertSort(int[] data) { y uK5 r
int temp; w Ycz\uV
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1);
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} 3Av(|<cR
} 2*7s9g
} :.'T+LI
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} #K,qF*
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归并排序: z"P,=M6De
uX5--o=C
package org.rut.util.algorithm.support; PE6u8ZAb"
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import org.rut.util.algorithm.SortUtil; :x*|lz[
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/** >-tH&X^
* @author treeroot 'i h
* @since 2006-2-2 3{#pd6e5
* @version 1.0 g$^qQs)^N
*/ $X<<JnsK
public class MergeSort implements SortUtil.Sort{ uB#B\i
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