计算机科学论坛--6个变态的C语言Hello World程序

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下面的六个程序片段主要完成这些事情：

输出Hello, World
混乱C语言的源代码
下面的所有程序都可以在GCC下编译通过，只有最后一个需要动用C++的编译器g++才能编程通过。

hello1.c

01 #define _________ }

02 #define ________ putchar

03 #define _______ main

04 #define _(a) ________(a);

05 #define ______ _______(){

06 #define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)

07 #define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)

08 #define ____ _(0x72)_(0x6C)_(0x64)_(0x21)

09 #define _____ __ ___ ____ _________

10 #include<stdio.h>

11 _____

hello2.c

1 #include<stdio.h>

2 main(){

3 int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D;

4 *(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(z++)=y[x++]+0x03;

5 *(z++)=y[x++]-0x43;*(z++)=y[x++]-0x0C;*(z++)=y[x++]+0x57;

6 *(z++)=y[x++]-0x08;*(z++)=y[x++]+0x03;*(z++)=y[x++]-0x06;

7 *(z++)=y[x++]-0x08;*(z++)=y[x++]-0x43;*(z++)=y[x]-0x21;

8 x=*(--z);while(y[x]!=NULL)putchar(y[x++]);

9 }

hello3.c
01 #include<stdio.h>

02 #define __(a) goto a;

03 #define ___(a) putchar(a);

04 #define _(a,b) ___(a) __(b);

05 main()

06 { _:__(t)a:_('r',g)b:_('$',p)

07 c:_('l',f)d:_(' ',s)e:_('a',s)

08 f:_('o',q)g:_('l',h)h:_('d',n)

09 i:_('e',w)j:_('e',x)k:_('\n',z)

10 l:_('H',l)m:_('X',i)n:_('!',k)

11 o:_('z',q)p:_('q',b)q:_(',',d)

12 r:_('i',l)s:_('w',v)t:_('H',j)

13 u:_('a',a)v:_('o',a)w:_(')',k)

14 x:_('l',c)y:_('\t',g)z:___(0x0)}

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hello4.c
1 int n[]={0x48,

2 0x65,0x6C,0x6C,

3 0x6F,0x2C,0x20,

4 0x77,0x6F,0x72,

5 0x6C,0x64,0x21,

6 0x0A,0x00},*m=n;

7 main(n){putchar

8 (*m)!='\0'?main

9 (m++):exit(n++);}

hello5.c
01 main(){int i,n[]={(((1<<1)<<(1<<1)<<(1<<

02 1)<<(1<<(1>>1)))+((1<<1)<<(1<<1))), (((1

03 <<1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<<(

04 1<<1)<<(1<<1))+((1<<1)<<(1<<(1>>1)))+ (1

05 <<(1>>1))),(((1<<1)<<(1<<1)<<(1<<1)<< (1

06 <<1))-((1<<1)<<(1<<1)<<(1<<(1>>1)))- ((1

07 <<1)<<(1<<(1>>1)))),(((1<<1)<<(1<<1)<<(1

08 <<1)<<(1<<1))-((1<<1)<<(1<<1)<<(1<<(1>>1

09 )))-((1<<1)<<(1<<(1>>1)))),(((1<<1)<< (1

10 <<1)<<(1<<1)<<(1<<1))-((1<<1)<<(1<<1)<<(

11 1<<(1>>1)))-(1<<(1>>1))),(((1<<1)<<(1<<1

12 )<<(1<<1))+((1<<1)<<(1<<1)<<(1<<(1>>1)))

13 -((1<<1)<<(1<<(1>>1)))),((1<<1)<< (1<<1)

14 <<(1<<1)),(((1<<1)<<(1<<1)<<(1<<1)<<(1<<

15 1))-((1<<1)<<(1<<1))-(1<<(1>>1))),(((1<<

16 1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<< (1

17 <<1)<<(1<<(1>>1)))-(1<<(1>>1))), (((1<<1

18 )<<(1<<1)<<(1<<1)<<(1<<1))- ((1<<1)<< (1

19 <<1)<<(1<<(1>>1)))+(1<<1)), (((1<<1)<< (

20 1<<1)<<(1<<1)<< (1<<1))-((1<<1)<< (1<<1)

21 <<(1<<(1>>1)))-((1<<1) <<(1<< (1>>1)))),

22 (((1<<1)<< (1<<1)<<(1<<1)<< (1<<1))- ((1

23 <<1)<<(1<<1)<<(1<<1))+((1<<1)<< (1<<(1>>

24 1)))), (((1<<1)<<(1<<1) <<(1<<1))+(1<<(1

25 >>1))),(((1<<1)<<(1<<1))+((1<<1)<< (1<<(

26 1>>1))) + (1<< (1>>1)))}; for(i=(1>>1);i

27 <(((1<<1) <<(1<<1))+((1 <<1)<< (1<<(1>>1

28 ))) + (1<<1)); i++) printf("%c",n[i]); }
hello6.cpp

下面的程序只能由C++的编译器编译（比如：g++）
01 #include <stdio.h>

02 #define _(_) putchar(_);

03 int main(void){int i = 0;_(

04 ++++++++++++++++++++++++++++

05 ++++++++++++++++++++++++++++

06 ++++++++++++++++++++++++++++

07 ++++++++++++++++++++++++++++

08 ++++++++++++++++++++++++++++

09 ++++i)_(++++++++++++++++++++

10 ++++++++++++++++++++++++++++

11 ++++++++++i)_(++++++++++++++

12 i)_(--++i)_(++++++i)_(------

13 ----------------------------

14 ----------------------------

15 ----------------------------

16 ----------------------------

17 ----------------i)_(--------

18 ----------------i)_(++++++++

19 ++++++++++++++++++++++++++++

20 ++++++++++++++++++++++++++++

21 ++++++++++++++++++++++++++++

22 ++++++++++++++++++++++++++++

23 ++++++++++++++++++++++++++++

24 ++++++++++++++++++++++++++i)

25 _(----------------i)_(++++++

26 i)_(------------i)_(--------

27 --------i)_(----------------

28 ----------------------------

29 ----------------------------

30 ----------------------------

31 ----------------------------

32 ------i)_(------------------

33 ----------------------------

34 i)return i;}

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有够变态。。。全是替换与运算～～

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