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。 ZD{%0uh
插入排序: Rk2V[R.`S
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package org.rut.util.algorithm.support; UW7*,B q
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import org.rut.util.algorithm.SortUtil; ,]?Xf>
/** jR-`ee}y2
* @author treeroot OE87&Cl"{t
* @since 2006-2-2 `]^0lD=eI
* @version 1.0 [:gPp)f,
*/ /(C?3}}L
public class InsertSort implements SortUtil.Sort{ 6@pPaq6
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/* (non-Javadoc) K*;e>{p
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `>CHE'_
*/ S,Q!Xb@
public void sort(int[] data) { } ).rD
int temp; X|+ o4R?
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); xU$A/!oK
} juQ&v>9W)
} {awv=s
}
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冒泡排序: )cA#2mlS'1
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package org.rut.util.algorithm.support; +We_[Re`<
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import org.rut.util.algorithm.SortUtil; ]h4^3
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/** ,lK=m~
* @author treeroot yOKpi&! r
* @since 2006-2-2 lej-,HX
* @version 1.0 r':wq
*/ ACQc
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public class BubbleSort implements SortUtil.Sort{ C[f'1O7
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/* (non-Javadoc) -2NXQ+m ;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3WdYDv]N}L
*/ Ewjzm,2
public void sort(int[] data) { yWI30hW
int temp; S/YT
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for(int i=0;i for(int j=data.length-1;j>i;j--){ k
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if(data[j] SortUtil.swap(data,j,j-1); )?35!s6
} [ kI|Thx
} p<b//^
} on?<3eED
} 0k]$ he;h
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} f4A;v|5_
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选择排序: r)Q/YzXx*
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package org.rut.util.algorithm.support; WZz8VF
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import org.rut.util.algorithm.SortUtil; [
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/** +NIq}fZn9
* @author treeroot ^L}ICm_#
* @since 2006-2-2 KGsS2
* @version 1.0 MBy0Ky
*/ p
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public class SelectionSort implements SortUtil.Sort { <2b&AF{En
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/* ,4kly_$BH
* (non-Javadoc) >Z0F n
* #G</RYM~m
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y
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*/ <( "M;C3y
public void sort(int[] data) { &BF97%E2
int temp; E?\&OeAkO
for (int i = 0; i < data.length; i++) { 6"3-8orj
int lowIndex = i; UB%Zq1D|t
for (int j = data.length - 1; j > i; j--) { UZcsMMKH
if (data[j] < data[lowIndex]) { w ;;yw3
lowIndex = j; *\#/4_yB}
} U;SReWqU
} Vq8 G( <77
SortUtil.swap(data,i,lowIndex); x9l l 0Ht
} xIt' o(jQH
} r"E%U:y3P
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} &,v-AL$:Q
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Shell排序: qV;E%XkkS
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package org.rut.util.algorithm.support; v,T:V#f^
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import org.rut.util.algorithm.SortUtil; =*0KH##%$
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/** e0s*
* @author treeroot 0H$6_YX4A
* @since 2006-2-2 2/WtOQIB
* @version 1.0 {^J/S}L]
*/ s=S9y7i(R
public class ShellSort implements SortUtil.Sort{ 3!l+)g
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/* (non-Javadoc) <QuIX A
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -JKl\ E
*/ /"+CH\)
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public void sort(int[] data) { %>p[;>jW
for(int i=data.length/2;i>2;i/=2){ 64LX[8Ax#
for(int j=0;j insertSort(data,j,i); h 8%(,$*
} N>TmaUk
} "U"phLX
insertSort(data,0,1); lQS(\}N
} &6feR#~A
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/** !1b}M/Wx
* @param data aM7e?.rU
* @param j >^=;b5I2K
* @param i 40e(p/Qka
*/ 'fK3L<$z#m
private void insertSort(int[] data, int start, int inc) { L[s`8u<_)z
int temp; f7lt|.p
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); zb]e{$q2C
} Af"p:;^z
} J9%I&lu/
} N&uRL_X.
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} /Hs\`Kg"!
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快速排序: 3jqV/w[-
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package org.rut.util.algorithm.support; Zt"#'1
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import org.rut.util.algorithm.SortUtil; Y|l&mK?
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/** q)l1tC72
* @author treeroot 4C#r=Uw`
* @since 2006-2-2 GI<3L K\
* @version 1.0 4wkmgS
*/ 2@6Qifxd@
public class QuickSort implements SortUtil.Sort{ ]@I>OcH
O[|_~v:^
/* (non-Javadoc) d4m@u$^1B
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )Z*nm<=
*/ hAV@/oQ
public void sort(int[] data) { o(gV;>I
quickSort(data,0,data.length-1); ?$ Dc>
} ri2`M\;gt
private void quickSort(int[] data,int i,int j){ rw$ =!iyO
int pivotIndex=(i+j)/2; n%ypxY0
file://swap FfX*bqy
SortUtil.swap(data,pivotIndex,j); dC/@OV)0#
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int k=partition(data,i-1,j,data[j]); V2SHF
SortUtil.swap(data,k,j); nh]HEG0CZJ
if((k-i)>1) quickSort(data,i,k-1); ":_~(?1+
if((j-k)>1) quickSort(data,k+1,j); cX#U_U~d
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} O9*l6^Scw
/** 1d!TU=*
* @param data T<%%f.x[s
* @param i ^&lkh@Y1q
* @param j p4@0[z'
* @return g_JSgH!4
*/ Ie[DTy
private int partition(int[] data, int l, int r,int pivot) { [7\x(W-:@>
do{ 2BO&OX|X
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); vawS5b;
SortUtil.swap(data,l,r); _/J`v`}G
} 3=("vR`!
while(l SortUtil.swap(data,l,r); 'A,)PZL9i
return l; R:`)*=rL%
} +xuj ]J
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} =u`tlN5pOT
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改进后的快速排序: G+t=+T2m
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package org.rut.util.algorithm.support; FEi@MJJ\e
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import org.rut.util.algorithm.SortUtil; ]wUH*\(y
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/** T7^?j :kJ/
* @author treeroot C;%1XFzM
* @since 2006-2-2 T930tX6"h
* @version 1.0 %us#p|Ya
*/ 8<{i=V*x4
public class ImprovedQuickSort implements SortUtil.Sort { 2%/+r
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private static int MAX_STACK_SIZE=4096; as(Zb*PdH
private static int THRESHOLD=10; ><qA+/4]_
/* (non-Javadoc) )XDbg>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |zJ2ZE|
*/ IN,=v+A
public void sort(int[] data) { 9w6 uoM
int[] stack=new int[MAX_STACK_SIZE]; k#-%u,t
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int top=-1; {(l,Uhxl""
int pivot; =z4J[8bb
int pivotIndex,l,r; (v&iXD5t
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stack[++top]=0; !xU[BCbfYV
stack[++top]=data.length-1; 7b7WQ 7u
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while(top>0){ >=86*U~
int j=stack[top--]; _K B%g_{
int i=stack[top--]; ;?v&=Z't.
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pivotIndex=(i+j)/2; uQ%3?bx)T
pivot=data[pivotIndex]; X6j:TF
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SortUtil.swap(data,pivotIndex,j); * ).YU[i
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file://partition J$d']%Dwb
l=i-1; !AG {`[b
r=j; $$XeCPs0
do{ "8Lv
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); rN,T}M=2
SortUtil.swap(data,l,r); L^=G(op*
} <`u_O!h
while(l SortUtil.swap(data,l,r); i]Bu7Fuu
SortUtil.swap(data,l,j); F_0@Sh"
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if((l-i)>THRESHOLD){
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stack[++top]=i; ?XV3Y3
stack[++top]=l-1; F##xVmR~
} L#S|2L_hC
if((j-l)>THRESHOLD){ 8~F?%!X
stack[++top]=l+1; >uYU_/y$2
stack[++top]=j; x.sC015Id
} oPVt
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} B=%x#em
file://new InsertSort().sort(data); ijDXh y
insertSort(data); }qR6=J+Dx
} #|T2`uYotf
/** 0lOR.}]q
* @param data xUTTRJ(\
*/ }D-jTZlC
private void insertSort(int[] data) { '.jYu7
int temp; dK4w$~j{k
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); lqmr`\@)
} Ir=G\/A
} +.g j/uy*
} DG}s`'
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} fYW9Zbov-
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归并排序: =G !]_d0
FF;Fo}no-
package org.rut.util.algorithm.support; 6
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import org.rut.util.algorithm.SortUtil; Gzs$0Ki=
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/** 1vS-m x
* @author treeroot {vT9I4d8
* @since 2006-2-2 'dqecmB
* @version 1.0 W0}FOfL9
*/ Rd<K.7&A}
public class MergeSort implements SortUtil.Sort{ >s )L(DHa"
5hh6;)
/* (non-Javadoc) yF1p^>*ak&
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lBa` nG
*/ xZY7X&C4
public void sort(int[] data) { $R+rB;=a!
int[] temp=new int[data.length]; <AK9HPxP
mergeSort(data,temp,0,data.length-1); .Hk.'>YR
} R7KV
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private void mergeSort(int[] data,int[] temp,int l,int r){ y(#6nG@S
int mid=(l+r)/2; o' v!83$L
if(l==r) return ; yivWT;`
mergeSort(data,temp,l,mid); ~SmFDg$/m
mergeSort(data,temp,mid+1,r); xu{VU^'Y
for(int i=l;i<=r;i++){ fWb+08}C
temp=data; ^Pah\p4bj
} +~= j3U
int i1=l; 4P"XT
int i2=mid+1; itg"dGDk
for(int cur=l;cur<=r;cur++){ C XNYWx
if(i1==mid+1) 3E0C$vKM
data[cur]=temp[i2++]; Z{/GT7 /
else if(i2>r) 8n:N#4Dh^
data[cur]=temp[i1++]; 0JKTwLhC
else if(temp[i1] data[cur]=temp[i1++]; i52JY&N
else jfVw{\l
data[cur]=temp[i2++]; sk*vmxClY
} i|xz
} `sgW0Uf
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} ))nTd=
oKH+Q6S:
改进后的归并排序: dpX Fx"4A
ru~!;xT
package org.rut.util.algorithm.support; bAy\Sr
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import org.rut.util.algorithm.SortUtil; mD|Q+~=|e
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/** _'<FBlIN
* @author treeroot e {3%-
* @since 2006-2-2 vF&0I2T~l
* @version 1.0 B79~-,Yh
*/ - P"
public class ImprovedMergeSort implements SortUtil.Sort { YLS*uXB&.
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private static final int THRESHOLD = 10; t*dq*(3"c
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/* rQJ\Y3.
* (non-Javadoc) f0R+Mz8{
* V-E 77u6{0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S<-5<Pg
*/ 9}L2$^#,NA
public void sort(int[] data) { 3}fhU{-c
int[] temp=new int[data.length]; G}LV"0?
mergeSort(data,temp,0,data.length-1); b|;h$otC
} NqveL<r`
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private void mergeSort(int[] data, int[] temp, int l, int r) { RKM5FXX
int i, j, k; 3(nnN[?N,5
int mid = (l + r) / 2; JT=ax/%Mo
if (l == r) =-&h@mB;G
return; l|iOdKr h
if ((mid - l) >= THRESHOLD) >_ G'o
mergeSort(data, temp, l, mid); 2E`mbT,v&
else =''b `T$
insertSort(data, l, mid - l + 1); {oR@'^N
if ((r - mid) > THRESHOLD) `M(st%@n
mergeSort(data, temp, mid + 1, r); !w@i,zqu
else h%NM%;"H/
insertSort(data, mid + 1, r - mid); jw
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for (i = l; i <= mid; i++) { nJ/}b/A{
temp = data; rl&.|;5uH;
} )4.-6F7U?
for (j = 1; j <= r - mid; j++) { ^FVmP d*1
temp[r - j + 1] = data[j + mid]; N2Ysi$
} MJCz %zK
int a = temp[l]; ZLdIEBi=
int b = temp[r]; uu"hu||0_
for (i = l, j = r, k = l; k <= r; k++) { jSRi
if (a < b) { @1<VvW=
data[k] = temp[i++]; 3+vVdvu%
a = temp; rvK%m_r
} else { 8j :=D!S
data[k] = temp[j--]; CS5[E-%}T=
b = temp[j]; -WR<tkK
} 2;J\Z=7
} 6V}xgfB
} EJQT\c
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/** +_u~Np
* @param data ^4'!B
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* @param l Fs(S!;
* @param i "dE[X`
}=
*/ )qOcx
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private void insertSort(int[] data, int start, int len) { H
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for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ,A)Z.OWOq
} ET 0(/Zz
} -YmIRocx
} 2JcP4!RD
} 3 `mtc@*
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堆排序: #6l(2d
O6ugN-d>
package org.rut.util.algorithm.support; M%W#0
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import org.rut.util.algorithm.SortUtil; AT1{D!b
;:+2.//
/** n}fV$qu
* @author treeroot yy&L&