C#实现所有经典排序算法

上一篇 / 下一篇  2009-09-03 16:06:40 / 个人分类:数据结构&&算法

51Testing软件测试网5^ B#N&F6_

1、选择排序 51Testing软件测试网]3x J2}-iE,@

GR.y1Dv;~eB0class SelectionSorter   
Vt2z#D6s'm0{    51Testing软件测试网,^(h.l$Q WjR)n
    private int min;    51Testing软件测试网JFW*Q(e&\K
    public void Sort(int[] arr)    51Testing软件测试网0mv?x7?(Se"I#w
    {   
zq"Lcc*n oP0        for (int i = 0; i < arr.Length - 1; ++i)    51Testing软件测试网-FL.C(T1XE$D,p
        {   
+u`N` ek^0            min = i;    51Testing软件测试网*^fH^-E&iC D
            for (int j = i + 1; j < arr.Length; ++j)   
Fd0SP&g.uGgG0            {    51Testing软件测试网 Z0j#F2D W1c L
                if (arr[j] < arr[min])   
4KQ"PYF&a^ Z0                    min = j;    51Testing软件测试网O\ z,J%_ q
            }    51Testing软件测试网 a!g[#[+N!d%hia+n\
            int t = arr[min];    51Testing软件测试网5n4_2?g u
            arr[min] = arr[i];   
u0rz+fA/|)CZ2{rm)Y0            arr[i] = t;   
Q"T:Z%yxf.Z0        }   
b6S5U aQ8E5Ku0    }    51Testing软件测试网/~t RaRQrW? F
    static void Main(string[] args)   
T#y$f/jR o3}m^Z0    {    51Testing软件测试网1w2`)c]7e:xtT`:i1xM
        int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };   
G-y)H9G_0        SelectionSorter s = new SelectionSorter();   
;j`H1PC%_0        s.Sort(array);   
OhC7?VE7n ~0        foreach (int m in array)   
A\ E/}L9c6K}0            Console.WriteLine("{0}", m);   
|To7ko0    }   
1H0F#d0VT;E}U(U0} 51Testing软件测试网[AE8L{ \%iz

+x{TkW+vWP [-t0 

j%J0{/|QI0 51Testing软件测试网 hN q)Ku7E

2、冒泡排序51Testing软件测试网a9lO\#D1t8_9X

51Testing软件测试网]l0[wW Z;dx"OeJyM

class EbullitionSorter   
L"XHa W\c C0{   
g5q8Q?F \7I0    public void Sort(int[] arr)   
{n@*G1jr0    {   
M]$y@ U+XAl4h4Ud0        int i, j, temp;   
.Tx ~H`@q0        bool done = false;    51Testing软件测试网OTq3C:mS Q4[v
        j = 1;   
DS;E dBc4pX[!T*R0        while ((j < arr.Length) && (!done))//判断长度    51Testing软件测试网e6D7D.]$r`
        {    51Testing软件测试网1]{ bSN5h-p
            done = true;   
*dg.]&I%U4\?p^ dB$u0            for (i = 0; i < arr.Length - j; i++)   
#sN1Oxj Q0            {    51Testing软件测试网O9X B vXR#bs4ad
                if (arr[i] > arr[i + 1])   
+sK N-d%NT8]7X0                {    51Testing软件测试网J R R C/M3KpS7MQ
                    done = false;   
"^0WA%RK'R0                    temp = arr[i];    51Testing软件测试网-q:^NN M
                    arr[i] = arr[i + 1];//交换数据    51Testing软件测试网 @%OJyc8fk
                    arr[i + 1] = temp;    51Testing软件测试网B;\!B(b+|DS a
                }    51Testing软件测试网(J$M%d;Z,~I
            }    51Testing软件测试网8vU#@4EnY*e
            j++;   
,a/Ub o7y3wO0        }   
V%A-o.BPx0    }    51Testing软件测试网r x5de!a-c'|O
  
g^(|{8H,p&t#F0    static void Main(string[] args)   
g8? i5Mh-a F0    {    51Testing软件测试网 wg5wR W L7p(U
        int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };   
MRm}&S;f0        EbullitionSorter e = new EbullitionSorter ();   
)x.jN6?5R:G r.h7]0        e.Sort(array);    51Testing软件测试网A-H6}Tt3M
        foreach (int m in array)    51Testing软件测试网 v? i9R3Xp/]sJ
            Console.WriteLine("{0}", m);    51Testing软件测试网D v.x%J2W+gVV]0@
   51Testing软件测试网2HS^R I$vS2te
    }   
%vo1O @[{)l0}

j/N|;u6N/Z?0

b*gS"II]9x%e0 51Testing软件测试网!^D2X:y#rtd}Y;V

r1@p-B4@T0G&Y03、快速排序

$I1D7r.iY&iqsnG0

~aE8q*\;S0class QuickSorter    51Testing软件测试网R|5so @?%]/^|P&[
{   
T.N#g cK8Q0    private void swap(ref int l, ref int r)   
BxOl2ww0    {   
@ ]0~(yfN4B Y0        int temp;    51Testing软件测试网7SZrM0a?!B)tb
        temp = l;    51Testing软件测试网$w*{&Pk2[X{%S
        l = r;   
%e0o(Sr'H8e2[{0        r = temp;    51Testing软件测试网]2?W2kLU E)D
    }   
P?#t)l4n$l l\)M0    public void Sort(int[] list, int low, int high)    51Testing软件测试网B y;X ?S-}x
    {   
,L5V!y(u|[0        int pivot;//存储分支点   
![G/X7e P5W ?5J X0        int l, r;   
m(S9Mub0        int mid;   
t)N&f5o\f0        if (high <= low)   
_ q @ QZ.u4]9O0            return;   
/}5Kq4y bra0        else if (high == low + 1)   
;TA5Cy!s PxY0        {    51Testing软件测试网:v;W:OSD4[h*a*P@
            if (list[low] > list[high])   
,r!a _%?;M%E6]0                swap(ref list[low], ref list[high]);    51Testing软件测试网4a]wZzHw k]5f
            return;   
(X%r8S7@4I+^!{"p)E0        }   
:mT4k?Iya^0        mid = (low + high) >> 1;   
wO*JMM0        pivot = list[mid];    51Testing软件测试网:N|&|-ic^
        swap(ref list[low], ref list[mid]);   
9b3|@\Q:B.b} {9X0        l = low + 1;   
fF'rf Sm0        r = high;   
)bl.UB ^Rz+c0        do  
SR9xNyM x0        {    51Testing软件测试网v Wg!`#]8J-\J6O
        while (l <= r && list[l] < pivot)   
]k)q mYW0            l++;   
hu5kL4Z*F,BE0        while (list[r] >= pivot)    51Testing软件测试网1T#sD2r@p#QMQZ
            r--;    51Testing软件测试网WvU&W,oy+}
            if (l < r)    51Testing软件测试网T,du X`
                swap(ref list[l], ref list[r]);   
B,G.Ti+\R0        } while (l < r);    51Testing软件测试网+gJZ#u/Q
        list[low] = list[r];   
%ES;O;qc0        list[r] = pivot;    51Testing软件测试网 o3Zf1v/ms$XJK'[7Q
        if (low + 1 < r)   
#jL8S|q,XE'v0            Sort(list, low, r - 1);   
}X,_1\q%N$}0        if (r + 1 < high)   
}$H#]+X,?f;q0            Sort(list, r + 1, high);   
"Ok3j0rt B0    }    51Testing软件测试网9Z W"oi7k2LC.lH
   51Testing软件测试网 qI1rbS X1k;Z
    static void Main(string[] args)    51Testing软件测试网@AE m#Uz0ZG
    {    51Testing软件测试网F-f%l-_'`
        int[] iArrary = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };    51Testing软件测试网X9j&K|\ f
        QuickSorter q = new QuickSorter();    51Testing软件测试网f(l9|cW
        q.Sort(iArrary, 0, 13);    51Testing软件测试网 x(H5h7{9p5M'V Zf#\/I-bj
        for (int m = 0; m <= 13; m++)   
*w$e+`8aI0            Console.WriteLine("{0}", iArrary[m]);   
p:G A9M [No8`.I0    }   
]ht%Eg0}   51Testing软件测试网mMBU!P8FW&A

51Testing软件测试网 e T/yw8HW

 

OhRJ{T0 51Testing软件测试网%Z5i:@tL?e

4、插入排序

sxD0U$|p0

*\K Q5vs3` e,h,AO#R0public class InsertionSorter    51Testing软件测试网&Ck"e|wG%[,_$pS
{    51Testing软件测试网-K#IH/N_
    public void Sort(int[] arr)   
-jr6lQAK |l0    {    51Testing软件测试网#^|j/LXuKovZ1a7iC
        for (int i = 1; i < arr.Length; i++)    51Testing软件测试网!?I0I k_.KFu
        {    51Testing软件测试网cE0S{ ^/d v
            int t = arr[i];   
^!T{(n8~N!L*@7]0]0            int j = i;   
&]2jH+[7gvw&oZ0            while ((j > 0) && (arr[j - 1] > t))    51Testing软件测试网S#a%pOY0l?]#H-? D9m
            {   
8b-m!lU"d~7?&xW{0                arr[j] = arr[j - 1];//交换顺序   
^f6a%}#W8VNs0                --j;    51Testing软件测试网:w7A G8A.sy#j
            }    51Testing软件测试网j(S/]"a3?m-pI
            arr[j] = t;   
iO:Ffd|"nN0        }   
H V?:r)Y(Vr0    }   
OQnp qfU#Lid0    static void Main(string[] args)   
;P1y H Hc*g0CV0    {   
@hxT^H0        int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };    51Testing软件测试网+{l"F2ua(fP e1T
        InsertionSorter i = new InsertionSorter();    51Testing软件测试网,P2s?L;v
        i.Sort(array);    51Testing软件测试网&V SKDr"w6vg#`
        foreach (int m in array)   
U)SXV4jig8M0            Console.WriteLine("{0}", m);     51Testing软件测试网L)O"G;P8qt!{@
    }    51Testing软件测试网E H*^AC*[2g"~.J
}   

7n|']4~(d g(G&F:W0 51Testing软件测试网%A?y:Fi

 51Testing软件测试网8g^n"\2t B,hvNa'h

#P.]u?'zo05、希尔排序51Testing软件测试网)k"e9V.|L nK4@

51Testing软件测试网 D;XW LQ ]J#I

public class ShellSorter    51Testing软件测试网^][0Ik*X7afR
{    51Testing软件测试网S8i*n#R%wy(v.Z
    public void Sort(int[] arr)   
|9MOy [J)F'p.WR0    {   
\J-@0Cu)W-Vu%Cm0        int inc;    51Testing软件测试网#rep Vz*}8H
        for (inc = 1; inc <= arr.Length / 9; inc = 3 * inc + 1) ;    51Testing软件测试网7_&IKvZ.X3_)WK
        for (; inc > 0; inc /= 3)    51Testing软件测试网R `J%CU
        {   
ai-nu^P x6e0            for (int i = inc + 1; i <= arr.Length; i += inc)   
8H9` ?Z"j%z0u*B0            {    51Testing软件测试网y?[UG;kJ.w/B
                int t = arr[i - 1];   
5x#dN`i.tR8e [0                int j = i;    51Testing软件测试网M$Ibho6B^d6W)m
                while ((j > inc) && (arr[j - inc - 1] > t))    51Testing软件测试网\9}6KiI a7C
                {   
O,\GS4r3[e0                    arr[j - 1] = arr[j - inc - 1];//交换数据   
Q6w \W3VyW"aC4m&U+G2u0                    j -= inc;   
zqc#w$ub0                }    51Testing软件测试网nj{#v6Q
                arr[j - 1] = t;    51Testing软件测试网\ |bP8t,V&{se
            }   
E z$m-Fv8q-{J0        }    51Testing软件测试网:Y0j2@p7YG&G
    }    51Testing软件测试网y-ns$vA2j{
   51Testing软件测试网p7HD3C8e'Jwb.N
    static void Main(string[] args)   
6j ~6z/n-r0    {   
sF,QXpT Y;tr0        int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };   
9C:t|`ET-jQ1}0        ShellSorter s = new ShellSorter();    51Testing软件测试网 RxM {q
        s.Sort(array);    51Testing软件测试网3c&M__+CY:t:s.I
        foreach (int m in array)    51Testing软件测试网(y&j a5h7Du5p.a
            Console.WriteLine("{0}", m);    
Ot2z uvB0    }    51Testing软件测试网Hh0q$He"D
}  

&v2y*_U:F5w5O@ x0

TAG: 算法

 

评分:0

我来说两句

日历

« 2022-01-14  
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

数据统计

  • 访问量: 37914
  • 日志数: 47
  • 建立时间: 2009-09-03
  • 更新时间: 2010-06-10

RSS订阅

Open Toolbar