最有趣的程式！！
這是我看過最有趣的電腦程式
#define/**/Xchar*d="X0[!4cM,!"
"4cK`*!4cJc(!4cHg&!4c$j"
"8f'!&~]9e)!'|:d+!)rAc-!*m*"
":d/!4c(b4e0!1r2e2!/t0e4!-y-c6!"
"+|,c6!)f$b(h*c6!(d'b(i)d5!(b*a'`&c"
")c5!'b+`&b'c)c4!&b-_$c'd*c3!&a.h'd+"
"d1!%a/g'e+e0!%b-g(d.d/!&c*h'd1d-!(d%g)"
"d4d+!*l,d7d)!,h-d;c'!.b0c>d%!A`Dc$![7)35E"
"!'1cA,,!2kE`*!-s@d(!(k(f//g&!)f.e5'f(!+a+)"
"f%2g*!?f5f,!=f-*e/!<d6e1!9e0'f3!6f)-g5!4d*b"
"+e6!0f%k)d7!+~^'c7!)z/d-+!'n%a0(d5!%c1a+/d4"
"!2)c9e2!9b;e1!8b>e/! 7cAd-!5fAe+!7fBe(!"
"8hBd&!:iAd$![7S,Q0!1 bF 7!1b?'_6!1c,8b4"
"!2b*a,*d3!2n4f2!${4 f. '!%y4e5!&f%"
"d-^-d7!4c+b)d9!4c-a 'd :!/i('`&d"
";!+l'a+d<!)l*b(d=!' m- a &d>!&d'"
"`0_&c?!$dAc@!$cBc@!$ b < ^&d$`"
":!$d9_&l++^$!%f3a' n1 _ $ !&"
"f/c(o/_%!(f+c)q*c %! * f &d+"
"f$s&!-n,d)n(!0i- c- k) ! 3d"
"/b0h*!H`7a,![7* i] 5 4 71"
"[=ohr&o*t*q*`*d *v *r ; 02"
"7*~=h./}tcrsth &t : r 9b"
"].,b-725-.t--// #r [ < t8-"
"752793? <.~;b ].t--+r / # 53"
"7-r[/9~X .v90 <6/<.v;-52/={ k goh"
"./}q; u vto hr `.i*$engt$ $ ,b"
";$/ =t ;v; 6 =`it.`;7=` : ,b-"
"725 = / o`. .d ;b]`--[/+ 55/ }o"
"`.d : - ?5 / }o`.' v/i]q - "
"-[; 5 2 =` it . o;53- . "
"v96 <7 / =o : d =o"
"--/i ]q-- [; h. / = "
"i]q--[ ;v 9h ./ < - "
"52={cj u c&` i t . o ; "
"?4=o:d= o-- / i ]q - "
"-[;54={ cj uc& i]q - -"
"[;76=i]q[;6 =vsr u.i / ={"
"=),BihY_gha ,)\0 " , o [
3217];int i, r,w,f , b ,x ,
p;n(){return r <X X X X X
768?d[X(143+ X r++ + *d ) %
768]:r>2659 ? 59: ( x = d
[(r++-768)% X 947 + 768] ) ?
x^(p?6:0):(p = 34 X X X )
;}s(){for(x= n (); ( x^ ( p
?6:0))==32;x= n () ) ;return x ; }
void/**/main X () { r = p
=0;w=sprintf (X X X X X X o
,"char*d="); for ( f=1;f < * d
+143;)if(33-( b=d [ f++ X ] )
){if(b<93){if X(! p ) o
[w++]=34;for X(i = 35 +
(p?0:1);i<b; i++ ) o
[w++]=s();o[ w++ ]
=p?s():34;} else X
{for(i=92; i<b; i
++)o[w++]= 32;} }
else o [w++ ]
=10;o [
w]=0 ;
puts(o);}
沒錯，這是一個 C 程式。基本上在任何 C Compiler 都可以編譯。Windows 擁躉可下載 Visual C++ Express Edition、MinGW、Cygwin、LCC 等等免費的 C Compiler。
只是這樣的話，大家可能覺得不外如是。事實上，它的執行結果，是另一個 C 程式︰
char*d=")35E!'1cA,,!""2kE`*!-s@d(!(k(f//g&!)f.e5'f(!+a+)f%2g*!?f5f,!=f-*e/!<d"
"6e1!9e0'f3!6f)-g" "5!4d*b+e6!0f%k)d7!+~^'c7!)z/d-+!'n%a0(d5!""%c1a+/d4"
"!2)c9e2!9b;e1!8b" ">e/!7cAd-!5fAe+!7fBe(!8hBd&!:iAd$![7S,Q" "0!1bF7"
"!1b?'_6!1c,8b4!2" "b*a,*d3!2n4f2!${4f.'!%y4e5!&f%d-^-d7!4" "c+b)"
"d9!4c-a'd:!/i('`" "&d;!+l'a+d<!)l*b(d=!'m-a&d>!&d'`0_&c" "?!"
"$dAc@!$cBc@!$b<^" "" "&d$`:!$d9_&l++^$!%f3" "a'n"
"1_" "$!&f/c(o/_%!(f+c)q*c%" "!*f&d"
"+f$" "s&!-n,d)n(!0i-c-k)!3d/" "b0h*!H`"
"7a,![" "7X0[!4cM,!4cK`*!4cJc(!4cHg&!4" "c$j8f'!&~"
"]9e)!'" "|:d+!)""rAc-!*m*:d/!4c(b4e0!1r" "2e2!/t0e4!-"
"y-c6!+|,c6!)f$b(" "h*c6" "!(d'b(i)d5!(b*a'" "`&c)c5!'b+`&"
"b'c)c4!&b-_$c" "'d*c3!&a.h'd+d" "1!%a/g'e+e0!%b"
"-g(d.d/!&c*" "h'd1d-!(d%g)" "d4d+!*l,d7d)!,h-"
"d;c'!.b0c" ">d%!A`Dc$" "![7*i]5471[=ohr&o*"
"t*q*`*d" "*v*r;027" "*~=h./}tcrsth&t:r9"
"b].,b" "" "-725" "-.t--/" "/#r[<t8-752793?<.~"
";b]." "t--" "+r/#" "537-r" "[/9~X.v90<6/<.v;-"
"52/=" "{kgoh." "/}q" ";u" "vtohr" "`.i*$engt$$,b;$/="
"t;v" ";6=`it." "`;" "7=`" ":,b-7" "25=/o`..d;b]`--["
"/+" "55/}o`.d:" "" "-?5" "/}o`.'" "v/i]q--[;52=`it"
".o" ";53-.v96<7" "/=o" ":d=o--/" "i]q--[;h./=i]"
"q" "--[;v9h./<-" "52=" "{cjuc&`" "it.o;?4=o:d="
"o" "--/i]q--[" ";54=" "{cjuc&i]q-" "-[;76=i]q[;"
"6=" "vsru.i" "/={" "=),BihY_gha,)" "",o[3217];
int i, r,w ,f,b,p, t=641,x;n(){return r<t?d[(*
d+143+(r ++))%t]:r> +1341?59:(x=d[(r++-t) %351+t]
)?x^(p?6:0 ):(p=+34);} main(){w=sprintf(o,"char" "*d="
);r=p=0;for( f=1;f<*d+143;) if((b=d[f++])-33){if(b<+93){ if(
!p)o[w++]=34;for(i=35+(p?0:1);i <b;i++)o[w++]=n();o[w++]=p?n():+34 ;}
else for(i=92;i<b;i++)o[w++]=32;}else o[w++]=10;o[w]=0;puts(o);};/*Don_Yang*/;
一不離二，它的執行結果，又是一個 C 程式︰
char*d="S,Q0!1bF7!1b?'_""6!1c,8b4!2b*a,*d3""!2n4f2!${4f.'!%y4e5!&f%d-^-d7!4c+""b)d""9!4c-a'd:!/i(" "'`&d;!+l'a+d<!)l*b(d=!'m-a&d>""!&d'`0_&""c?!$dAc@"
"!$cBc@!$b<^&d$" "`:!$d9_&l++^$!%f3a'n1_$!&f/c(o/_%" "!(f+c)"
"q*c%!*f&d" "+f$s&!-n,d)n(!0i-c-k)!3d/b0h" "*!H`"
"7a,!" "[7X0" "[!4cM,!4cK`""*!4cJc(!4cH" "g&"
"!4c$j" "8f'!&~]9e)" "!'|:d+!)rAc-!*m*:""d/!" "4c(b"
"4e0!1r2" "e2!/t0e""4!-y-" "c""6!+|,c6!)f$b(h" "*c6!(d"
"'b(i)d5!(b*a'`&c)c5!'b+`&b'" "c)c4!&b-_$c'd*c3!" "&a.h'd+d"
"1!%a/g'e+e0!%b-g(d.d/!&c*" "h'd1d-!(d""%g)d4d" "+!*l,d7d)!,"
"h-d;c'!.b0c>d%!A`Dc$![7)" "35E!'1cA,,!2kE`*!-" "s@d(!(k(f//g&"
"!)f.e5'f(!+a+)f%2g*!?" "f5f,!=f-*e/!""<d6" "e1!9e0'f3!6f)-g"
"5!4d*b+e6!0f%k)d7!" "+~^'c""7!)z/d-+!" "'n%a0(d5!%c1a+/d4"
"!2)c9e2!9b;e1!8b" ">e/!7c" "Ad-!5fA" "e+!7fBe(!8hBd&!:iA"
"d$![7*i]5471" "[" "=ohr&" "o*t*q*`*d*v*r;027*~"
"=h./}tc" "rst" "h&t:r9b].,b-725-.t-"
"-//#r" "[<t8-752793" "?<.~;b].t""--+r/#5"
"37-" "r" "[/9~X.v90<6/""<.v;" "-52/={kgoh./}q;uv"
"t" "ohr`.i*$engt$" "$,b;$/=""t;v;6=`it.`" ";7=`:,b-725=/o`."
".d;b]`--[/+55/""}o`.d" ":-?5/}o`.'v/i]q--[;52" "=`it.o;53-.v96"
"<7/=o:d=o--/i]q--[;h." "/=i]q--[;v9h./<-52={cju" "c&`it.o;?4=o:"
"d=o--/i]q--[;54={cju" "c&i]q--[;76=i]q[;6=vsru.i/" "={=),BihY_g"
"ha,)",o[3217];int i, r,w,f,b,p,t=641,x;n(){return r< t?d[(*d+143
+(r++))%t]:r>+1341? 59:(x=d[(r++-t)%351+t])?x^(p?6: 0):(p=+34
);}main(){w=sprintf(o ,"char""*d=");r=p=0;for(f=1;f<*d +143;)
if((b=d[f++])-33){if(b <+93){if(!p)o[w++]=34;for(i=35+( p?0:
1);i<b;i++)o[w++]=n();o[ w++]=p?n():+34;}else for(i=92;i <b
;i++)o[w++]=32;}else o[w++]=10;o[w]=0;puts(o);};/*Don_Yang*/;;;;;;;;;;;;;;;;;;
不用說，這又是一個 C 程式。如大家所料，執行結果是第四個 C 程式︰
char*d="X0[!4cM,""!4cK`*!4cJc(!4cHg&!4c$j8f'!&~]9e)!'|:d+!)rAc-""!*m*:d/!4c(b""4e0!1r2e2!/t0" "e4!-y-c6!+|,c6!)f$b(h*c6!(d'b(i)d5""!(b*a'`&c)c5!'b+`&b"
"'c)c4!&b-_$c'" "d*c3!&a.h'd+d1!%a/g'e+e0!%b""-g(" "d.d/!&c*h'd1d-!(d%"
"g)d4d+!*l,d7d" ")!,h-d;c""'!.b0c>d%!A`Dc$![7)3" "5E!'1cA,,!2kE`*!"
"-s@d(!(k(f//g&" "!)f.e5" "'f(!+a+)""f%2g*!" "?f5f,!=f-*e/!<d"
"6e1!9e0'f3!6f)" "-g5!4d*b+e6!0f%k" ")d7!+~^'c7!)z/"
"" "d-+!'n%a0(d5!%c1" "a+/d4!2)c9""e2!"
"9" "b;e1!8b>e/!7cAd-" "!5fAe+!7fBe(!8hBd"
"&!" ":" "iAd$![7S," "Q0!1bF7!1" "b?'_6!1c,8b4!2b*a,*"
"d3!2n4f2!${4f.'!" "%y4e5!&" "f%d-^" "-d7!4c+b)d9!4c-a'd:!/"
"i('`&d;!+l'a+d<!" ")l*b(d=!'" "m-a" "&d>!&d'`0_&c?!$dAc@!$c"
"Bc@!$b<^&d$" "`:!$""d9_" "&l" "++^$!%f3a'n1_$!&f/c(o/_"
"%!(f+c)" "q*c" "%!*f&d+" "f$s&!-n,d)n(!0i-c-k)!3d/"
"b0h*!" "H`7a,!" "[7*i" "]5471[=ohr&o*t*q*`*d*v*r;"
"027" "*~=h./}tc" "rs" "th&t:r9b].,b-725-.t--//#r["
"<t" "8-7" "52793?<.~;b]" ".t" "--+r/#537-r[/9~X.v90<6/<.v;"
"" "-52/={kgoh./}q;uvtohr`.i*$eng" "t$$,b;$/=t;v;6=`it.`;7=`:,b-"
"" "725=/o`..d;b]`--[/+55/}o`.d:-?" "5/}o`.'v/i]q--[;52=`it.o;53-"
"" ".v96<7/=o:d=o--/i]q--[;h" "./" "" "=i]q--[;v9h./<-52={cju"
"" "c&`it.o;?4=o:d=o--/i]" "q-" "-[;54={""cjuc&i]" ""
"q" "--[;76=i]q[;6=v" "sru" ".i/={=),BihY_" ""
"gh" "a,)",o[3217] ;int i ,r,w,f,b,p,t= 641
,x;n() {return r <t?d[(* d+143+(r ++)
)%t]:r>+ 1341 ?59:(x=d[ (r ++-t
)%351+t])?x ^(p?6:0):( p=+34); }main(
){w=sprintf(o, "char""*d=" );r=p=0;for (f=1;f<
*d+143;)if((b=d[f ++])-33){if(b <+93){if(!p)o[ w++]=34;
for(i=35+(p?0:1);i<b;i++)o[w++]=n();o[ w++]=p?n():+34;}else for(i=92;i
<b;i++)o[w++]=32;}else o[w++]=10;o[w]=0;puts(o);};/*Don_Yang*/;;;;;;;;;;;;;;;;
大家不用怕︰這個 C 程式，的執行結果，和第二個是一樣的（即 あく）
註︰ 這個程式乃 2000 年 The International Obfuscated C Code Contest (IOCCC) 的得獎作品。作者似乎是漫畫浪客劍心的擁躉。「あくそくざん」（悪即斬）乃故事主角之口頭禪。
詳見 http://www.au.ioccc.org/years.html#2000_dhyang（特別是 dhyang.hint）
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