下面的六個程序片段主要完成這些事情：
下面的所有程序都可以在GCC下編譯通過，只有最後一個需要動用C++的編譯器g++才能編程通過。
hello1.c
- #define _________ }
- #define ________ putchar
- #define _______ main
- #define _(a) ________(a);
- #define ______ _______(){
- #define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
- #define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
- #define ____ _(0x72)_(0x6C)_(0x64)_(0x21)
- #define _____ __ ___ ____ _________
- #include <stdio.h>
- _____
hello2.c
- #include <stdio.h>
- main(){
- int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D;
- *(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(z++)=y[x++]+0x03;
- *(z++)=y[x++]-0x43;*(z++)=y[x++]-0x0C;*(z++)=y[x++]+0x57;
- *(z++)=y[x++]-0x08;*(z++)=y[x++]+0x03;*(z++)=y[x++]-0x06;
- *(z++)=y[x++]-0x08;*(z++)=y[x++]-0x43;*(z++)=y[x]-0x21;
- x=*(--z);while(y[x]!=NULL)putchar(y[x++]);
- }
hello3.c
- #include <stdio.h>
- #define __(a) goto a;
- #define ___(a) putchar(a);
- #define _(a,b) ___(a) __(b);
- main()
- { _:__(t)a:_('r',g)b:_('$',p)
- c:_('l',f)d:_(' ',s)e:_('a',s)
- f:_('o',q)g:_('l',h)h:_('d',n)
- i:_('e',w)j:_('e',x)k:_('/n',z)
- l:_('H',l)m:_('X',i)n:_('!',k)
- o:_('z',q)p:_('q',b)q:_(',',d)
- r:_('i',l)s:_('w',v)t:_('H',j)
- u:_('a',a)v:_('o',a)w:_(')',k)
- x:_('l',c)y:_('/t',g)z:___(0x0)}
hello4.c
- int n[]={0x48,
- 0x65,0x6C,0x6C,
- 0x6F,0x2C,0x20,
- 0x77,0x6F,0x72,
- 0x6C,0x64,0x21,
- 0x0A,0x00},*m=n;
- main(n){putchar
- (*m)!='/0'?main
- (m++):exit(n++);}
hello5.c
- main(){int i,n[]={(((1<<1)<<(1<<1)<<(1<<
- 1)<<(1<<(1>>1)))+((1<<1)<<(1<<1))), (((1
- <<1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<<(
- 1<<1)<<(1<<1))+((1<<1)<<(1<<(1>>1)))+ (1
- <<(1>>1))),(((1<<1)<<(1<<1)<<(1<<1)<< (1
- <<1))-((1<<1)<<(1<<1)<<(1<<(1>>1)))- ((1
- <<1)<<(1<<(1>>1)))),(((1<<1)<<(1<<1)<<(1
- <<1)<<(1<<1))-((1<<1)<<(1<<1)<<(1<<(1>>1
- )))-((1<<1)<<(1<<(1>>1)))),(((1<<1)<< (1
- <<1)<<(1<<1)<<(1<<1))-((1<<1)<<(1<<1)<<(
- 1<<(1>>1)))-(1<<(1>>1))),(((1<<1)<<(1<<1
- )<<(1<<1))+((1<<1)<<(1<<1)<<(1<<(1>>1)))
- -((1<<1)<<(1<<(1>>1)))),((1<<1)<< (1<<1)
- <<(1<<1)),(((1<<1)<<(1<<1)<<(1<<1)<<(1<<
- 1))-((1<<1)<<(1<<1))-(1<<(1>>1))),(((1<<
- 1)<<(1<<1)<<(1<<1)<<(1<<1))-((1<<1)<< (1
- <<1)<<(1<<(1>>1)))-(1<<(1>>1))), (((1<<1
- )<<(1<<1)<<(1<<1)<<(1<<1))- ((1<<1)<< (1
- <<1)<<(1<<(1>>1)))+(1<<1)), (((1<<1)<< (
- 1<<1)<<(1<<1)<< (1<<1))-((1<<1)<< (1<<1)
- <<(1<<(1>>1)))-((1<<1) <<(1<< (1>>1)))),
- (((1<<1)<< (1<<1)<<(1<<1)<< (1<<1))- ((1
- <<1)<<(1<<1)<<(1<<1))+((1<<1)<< (1<<(1>>
- 1)))), (((1<<1)<<(1<<1) <<(1<<1))+(1<<(1
- >>1))),(((1<<1)<<(1<<1))+((1<<1)<< (1<<(
- 1>>1))) + (1<< (1>>1)))}; for(i=(1>>1);i
- <(((1<<1) <<(1<<1))+((1 <<1)<< (1<<(1>>1
- ))) + (1<<1)); i++) printf("%c",n[i]); }
hello6.c
下面的程序只能由C++的編譯器編譯比如：g++）
- #include <stdio.h>
- #define _(_) putchar(_);
- int main(void){int i = 0;_(
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++i)_(++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++i)_(++++++++++++++
- i)_(--++i)_(++++++i)_(------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------i)_(--------
- ----------------i)_(++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++++
- ++++++++++++++++++++++++++i)
- _(----------------i)_(++++++
- i)_(------------i)_(--------
- --------i)_(----------------
- ----------------------------
- ----------------------------
- ----------------------------
- ----------------------------
- ------i)_(------------------
- ----------------------------
- i)return i;}
