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
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#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
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#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
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#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
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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
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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.cpp
下面的程序只能由C++的编译器编译(比如:g++)
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#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;} |
(全文完)