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。 R?iC"s!
插入排序: {8T/;K@
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package org.rut.util.algorithm.support; jKr>Ig=$tA
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import org.rut.util.algorithm.SortUtil; )6*)u/x:
/**
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* @author treeroot RiiwsnjC
* @since 2006-2-2 P@FE3g
* @version 1.0 !yD$fY
*/ tA{hx-
public class InsertSort implements SortUtil.Sort{ x*!%o(G
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/* (non-Javadoc) DdCNCXU
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) x &*2R#Ai
*/ og`K!d~
public void sort(int[] data) { %gEgpJd
int temp; W]I+Rlv)U
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Wgb L9'}B
} @G^m+-
} W9:(P
} GD0Q`gWNe
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} .O6(QI*
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冒泡排序: HpIWH*
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package org.rut.util.algorithm.support; yR1v3D4E
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import org.rut.util.algorithm.SortUtil; c]68$;Z7
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/** N2.Ym;^
* @author treeroot xjh(;S'
* @since 2006-2-2 >hO9b;F}
* @version 1.0 zI"1.^Trn
*/ JKA%$l0
public class BubbleSort implements SortUtil.Sort{ 97vQM
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/* (non-Javadoc) LG;U?:\
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZKt`>KZ
*/ !OV+=Rwdx
public void sort(int[] data) { :gTtWJ04]
int temp; `X%Qt~
for(int i=0;i for(int j=data.length-1;j>i;j--){ Ynl Zyw!
if(data[j] SortUtil.swap(data,j,j-1); Xxr"Gc[
} Ud)2Mq1#M
} LC})aV|
} |p`}vRv
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} nQ#NW8*Fs
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} 6e%ZNw{#=
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选择排序: ?g4S51zpp
GDYFhH7H
package org.rut.util.algorithm.support; }#2I/dn
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import org.rut.util.algorithm.SortUtil; b}!T!IP}
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/** \. YJs"<3
* @author treeroot oAgU rl;R
* @since 2006-2-2 5DL(#9F8b9
* @version 1.0 .* &F
*/ rmeGk&*R8
public class SelectionSort implements SortUtil.Sort { v9"03=h
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/* (BGflb
* (non-Javadoc) upiYo(sN.
* 3;F up4!4}
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C(n_*8{
*/ cUr5x8<W).
public void sort(int[] data) { _ ( $U\FW
int temp; <xUX&J=;
for (int i = 0; i < data.length; i++) { NIG*
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int lowIndex = i; 4o<'
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for (int j = data.length - 1; j > i; j--) { 2%vG7o,#
if (data[j] < data[lowIndex]) { {_ {zs!r
lowIndex = j; vngn^2
}
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} qVE<voB8
SortUtil.swap(data,i,lowIndex); S|]\q-qA&
} gP`CQ0t
} R%"'k<`#
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} <=%=,Yk
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Shell排序: vF9fXY=
V^< Zs//7
package org.rut.util.algorithm.support; pYh\l.@qf
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import org.rut.util.algorithm.SortUtil; y>0Gmr
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/** |Q$Dj!!1P
* @author treeroot ?u>A2Vc!
* @since 2006-2-2 %*OQH?pyx}
* @version 1.0 Q-KBQc
*/ fvRqt)Ks
public class ShellSort implements SortUtil.Sort{ H^+Znmo
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/* (non-Javadoc) x#fv<Cj4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ''}2JJU{
*/ A'n{K#
public void sort(int[] data) { WNSEc%
for(int i=data.length/2;i>2;i/=2){ +iw4>0pi
for(int j=0;j insertSort(data,j,i); o\X|\nUk
} x{S2
} dst!VO:
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insertSort(data,0,1); {dwlW`{
} HqXS-TG
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/** PV-B<Y
* @param data 6S^JmYq
* @param j :XB^IyO-A
* @param i aX?
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*/ H__'K/nH+
private void insertSort(int[] data, int start, int inc) { i4mP*RwC
int temp; ~)*uJ wW/a
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ] -%B4lT
} ;&XC*R+
} i<*W,D6
} 4jW <*jM
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} .f`KP!p.
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快速排序: jXIVR'n(
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package org.rut.util.algorithm.support; *mn"GK6
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import org.rut.util.algorithm.SortUtil; [0lO0ik>G
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/** !UHX?<3r
* @author treeroot yeA]j[ #
* @since 2006-2-2 fa!8+kfi
* @version 1.0 A}i>ys
*/ sLf~o"yb
public class QuickSort implements SortUtil.Sort{ 5YLc4z*
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/* (non-Javadoc) |k]fY*z(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [<X ~m
*/ s?PB ]Tr
public void sort(int[] data) { 1V-si bE
quickSort(data,0,data.length-1); eE@7AM
} oE)xL%*
private void quickSort(int[] data,int i,int j){
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int pivotIndex=(i+j)/2; fni7HBV?
file://swap OV`li#H
SortUtil.swap(data,pivotIndex,j); J:G{
cyB2=,
int k=partition(data,i-1,j,data[j]); BzTzIo5
SortUtil.swap(data,k,j); ie7P^:T|+
if((k-i)>1) quickSort(data,i,k-1); Nt687
if((j-k)>1) quickSort(data,k+1,j); dg&GMo
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} `E|>K\
/** nI/kX^Pd
* @param data ( +(bw4V/
* @param i S7j U:CLJ
* @param j \zhCGDm1_
* @return oWq]\yT<`
*/ UTqKL*p523
private int partition(int[] data, int l, int r,int pivot) { r`e6B!p
do{ ?=b#H6vs
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 1^2]~R9,9
SortUtil.swap(data,l,r); J7@Q;gcl:
} oz7=1;r
while(l SortUtil.swap(data,l,r); Qjmo{'d
return l; zpg512\y
} tg7QX/KX
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} 9/{ 8Y&
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改进后的快速排序: Uurpho_~
h{^MdYJ
package org.rut.util.algorithm.support; {Rn*)D9
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import org.rut.util.algorithm.SortUtil; 7Ac.^rv5
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/** MHS|gR.c
* @author treeroot q><wzCnRu~
* @since 2006-2-2 ;A0ZcgF
* @version 1.0 (O/W`qo
*/ oSl}A,aQ(
public class ImprovedQuickSort implements SortUtil.Sort { G`f|#-}
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private static int MAX_STACK_SIZE=4096; q NUd "%S
private static int THRESHOLD=10; @]L$eOV_
/* (non-Javadoc) 3?TUt{3g
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Eo@rrM:
*/ t-Ble
public void sort(int[] data) { o1H6E1$=
int[] stack=new int[MAX_STACK_SIZE]; B/B`=%~5_^
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int top=-1; V!s#xXD }
int pivot; n>,? V3ly
int pivotIndex,l,r; F(w<YU%6
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stack[++top]=0; +No Ve#
stack[++top]=data.length-1; 1*:BOoYx
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while(top>0){ m?=J;r"Re
int j=stack[top--]; TJ|do`fw>
int i=stack[top--]; qR
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pivotIndex=(i+j)/2; RtEx
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pivot=data[pivotIndex];
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SortUtil.swap(data,pivotIndex,j); =FQH5iSd
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file://partition .f|)od[
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r=j; ktM7L{Nz
do{ tUGF8?&
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while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); J\Tu=f)
SortUtil.swap(data,l,r); vnqLcNB H
} .-1'#Z1T
while(l SortUtil.swap(data,l,r); 4}0Ry\
6
SortUtil.swap(data,l,j); eTI?Mu>C
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if((l-i)>THRESHOLD){ r+tHVh
stack[++top]=i; i0~Af`v
stack[++top]=l-1; $p*.[)
} iKv"200h(
if((j-l)>THRESHOLD){ I")mg~f
stack[++top]=l+1; b]*OGp4]5
stack[++top]=j; }\1IsK~P
} &td
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} -}RGz_LO/
file://new InsertSort().sort(data); "O_)~u
insertSort(data); 0iKAg
} 3~Ll<8fv
/** \T?6TDZ]
* @param data v3wq-
*/ |g"K7XfM4
private void insertSort(int[] data) { ED>P>Gg
int temp; ADA}_|O
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); W9S6
SO^\
} ),2|TlQ
} 8_M"lU0[
} FLIU}doc
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} EIF
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归并排序: &,* ILz
1JV-X G6
package org.rut.util.algorithm.support; *DQa6,b
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import org.rut.util.algorithm.SortUtil; xRZ/[1f!
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/** DeI3(o7
* @author treeroot u[nLrEnD
* @since 2006-2-2 UYzNaw4/x
* @version 1.0 9zm2}6r4
*/ z}Um$'. =
public class MergeSort implements SortUtil.Sort{ A.(e=;0bu
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/* (non-Javadoc) HE0m#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [EK@f,iM
*/ 83VFBY2q
public void sort(int[] data) { @Thrizh
int[] temp=new int[data.length]; Q'YakEv >=
mergeSort(data,temp,0,data.length-1); r(rT.D&
} BE!l{
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private void mergeSort(int[] data,int[] temp,int l,int r){ *a-KQw
int mid=(l+r)/2; \5j#ad
if(l==r) return ; #$l:%
mergeSort(data,temp,l,mid); -]G=Q1 1
mergeSort(data,temp,mid+1,r); X2{Aa T*M
for(int i=l;i<=r;i++){ c GyBml1
temp=data; tRNMiU
} TgKSE1
int i1=l; Zh_3ydMD1
int i2=mid+1; 5ka6=R(r
for(int cur=l;cur<=r;cur++){ /x\~5cC
if(i1==mid+1) V5gr-^E
data[cur]=temp[i2++]; V`G^Jyj
else if(i2>r) '=J|IN7WT
data[cur]=temp[i1++]; P1|3%#c
else if(temp[i1] data[cur]=temp[i1++]; 7/iN`3Bz
else Yy,XKIqU
data[cur]=temp[i2++]; Bq,MTzxD
} "*:?m{w5
} h<qi[d4X
kV4L4yE
} +}eK8>2
c= aZ[
改进后的归并排序: E&)o.l<h|
m ;wj|@cF
package org.rut.util.algorithm.support; V{X/y N.u
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import org.rut.util.algorithm.SortUtil; l< H nP R/
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/** =&~ K;=:
* @author treeroot n*caP9B
* @since 2006-2-2 \Qq YH^M
* @version 1.0 X]dN1/_
*/ EAE#AB-A
public class ImprovedMergeSort implements SortUtil.Sort { w=^~M[%w
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private static final int THRESHOLD = 10; )k]{FM
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/* =L`PP>"rW
* (non-Javadoc) 5UX- Qqr
* Tq?f5swsI
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W{1l?Wo
*/ 7|
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public void sort(int[] data) { -![{Zb@
int[] temp=new int[data.length]; V0n8fez
b
mergeSort(data,temp,0,data.length-1); #TcX5
}
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private void mergeSort(int[] data, int[] temp, int l, int r) { (%G>TV
int i, j, k; _qH]OSo
int mid = (l + r) / 2; B_C."{G
if (l == r) 0^6}s1d_
return; C#P>3"
if ((mid - l) >= THRESHOLD) bAUYJPRpy
mergeSort(data, temp, l, mid); ,^jQBD4={
else ,V''?@
insertSort(data, l, mid - l + 1); E!`/XB/nA
if ((r - mid) > THRESHOLD) -VP_Aw$
mergeSort(data, temp, mid + 1, r); %VE FruM
else <3Rq!w/
insertSort(data, mid + 1, r - mid); q(BRJ(
;Mr Q1
for (i = l; i <= mid; i++) { \"$q=%vD
temp = data; 3h6,x0AG
} Equ%6x
for (j = 1; j <= r - mid; j++) { aM:tg1g
temp[r - j + 1] = data[j + mid]; e}s,WC2-
} M&e=LV
int a = temp[l]; 21] K7
int b = temp[r]; g_eR&kuh
for (i = l, j = r, k = l; k <= r; k++) { ?OGs+G
if (a < b) { IvI;Q0E-3
data[k] = temp[i++]; Z/:W.*u
a = temp; ?.ofs}
} else { ;zSV~G6-
data[k] = temp[j--]; <
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b = temp[j]; waG &3m
} DLO#_t^v.
} )i:"cyoE
} wQM( |@zE}
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/** $?9u;+jIR
* @param data ]SN5&S
* @param l K3&k+~$
* @param i 2\gbciJ[{(
*/ (~(FQ:L%U
private void insertSort(int[] data, int start, int len) { swMR+F#u*
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); S<5.}c R
} h}}7_I9
}
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} Vkqfs4 t
} \2Kl]G(w%y
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堆排序: xX~m Fz0C
5oOs.(m|*C
package org.rut.util.algorithm.support; [7[$P.MS{
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import org.rut.util.algorithm.SortUtil; [?da BXS
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/** `g{eWY1l
* @author treeroot y }h2
* @since 2006-2-2 YL[y3&K
* @version 1.0 <4^y7]]F
*/ u%Z4 8wr
public class HeapSort implements SortUtil.Sort{ aZmbt,.V
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/* (non-Javadoc) "T} HH
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >_X(rar0
*/ !m9g\8tE
public void sort(int[] data) { avqJ[R
MaxHeap h=new MaxHeap(); o/!a7>xO4
h.init(data); l_fERp#y
for(int i=0;i h.remove(); fi6_yFl
System.arraycopy(h.queue,1,data,0,data.length); v^ 1x}
} [U7r>&