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下面的六個程序片段主要完成這些事情：

輸出Hello, World

混亂C語言的源代碼

下面的所有程序都可以在GCC下編譯通過，只有最后一個需要動用C++的編譯器g++才能編程通過。

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++的編譯器編譯（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;}

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