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New Less than Readable Code
Stamp puzzle solution
2 direct replies — Read more / Contribute
by drpaz
on Jun 07, 2019 at 13:20

    Someone posted this challenge at work..
    The country of Elbonia is standardizing its postal system to streamline its parcel service. All parcel boxes (many sizes available) now come with 10 preprinted rectangles on one side for stamps to be stuck into. Elbonia's stamp denominations are:
    1c, 2c, 3c, 4c, 5c, 10c, 24c, 37c, 39c, 41c, 48c, 60c, 63c, 70c, 75c, 80c, 83c, 84c, 87c, $1, $3.85, $4.05, $4.60, $5, $14.40
    Given an infinite supply of each denomination, what is the minimum postage amount that would REQUIRE 11 stamps and so not work with the streamlined service?

    my$w={0=>1,1=>1,2=>2,3=>3,4=>4,5=>5,10=> 10,24=>24,37=>37,39=>39,41=>41,48=>48,60 =>60 ,63=> 63, 70=> 70,75 =>75 ,80=>80 ,83=> 83, 84=>84,87=>87, 100=> 100, 385=>385,405=>405 ,460=> 460 ,500=>500,1440=> 1440}; my@a =sort{$a<=>$b}keys %{$w}; for( 1..9){foreach my$c (keys %{$w} ){foreach my $v(@a) {my $n =$c+ $v;if(!exists$w-> {$n}) {$w ->{$n}=$w->{$c}. "+".$v ;}}} }my@r=sort{$a<=> $b}keys %{$w };my$h=pop@r; for my$i (0.. $h){if(exists $w->{$ i}){ print"$ i->". $w-> {$i}."\n" ;}### else{ print"!$i \n";} }### # ########## ##### #### # ############ ##### #### # ############## ##### #### # ################ ##### #### ################### ##### #### ############## ##### #### ## ## ######################################## ##### # ########### ############## ##### ########################################
room 237 JAPH
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by Discipulus
on Mar 08, 2019 at 08:02
    NB: minimum console width 108

    THE : OVERLOOK: MAZE: $} = pack ('H*' ,'416c6c20776f726b20616e64206e6f20706c6179206d616b6573204a61636b206120 +64756c6c20626f79' ## #### #### #### #### ####### #### ### +# #### #### ## );for((1,1,1,1,0)x 4,(0,2,4,6,8)x 4,(0,8,6,4,2) x 4,'ll',(1,1,1,1,0),' +\sand',(1,1,1,1,0 ## #### #### #### #### #### #### ### +# #### #### ## ),'\sno',(1,1,1,1,0),'\sp\Klay',(1,1,1,1,0),'\sdu',(1,1,1,1,0),'ll',(1 +,1,1,1,0),'a.boy' ## #### #### #### #### ####### #### #### #### + #### ## ,(1,1,1,1,0),(0,0,1,1,1,1,1)x 4,'\swork',(1,1,1,1,0),'\swith',(1,1,1,1 +,0),'\smakes',(1, 1,1,1,0)x 4,'a',(1,1,1,1,0),((join'|',split'','perl'),1,$",1)x 4,(1,1, +1,1,0)x 4,){ ($}= ## #### #### #### #### #### #### ### +# #### #### ## $}) =~ s/^(A)(.)(.)(.)$/ $3$1$2$4/ or$}=~/a boy/?($}=$})=~s/a\Kck/pH/: +'' or( ($X=$^X)=~ s/.*\W(.{4})\.?.{0,3}$/ucfirst($1)/e and($}=$})=~s/\bp\b/with $X/) or +print/\D/?($}=$}) ## #### #### #### #### #### ### +# #### #### ## # #### #### #### #### #### #### + #### # # #### #### # JAPH # + #### #### # # #### #### #### #### #### #### + #### # ## #### #### #### #### #### ### +# #### #### ## =~s/$_//&&sleep 1&&next:($_?$"x((80-length$} x 2)/2+$_):$/.$".$".$" x( +(80-length$} x 2) /2+$_)),$" x $_,$},$" x 5,$},$/;select undef,undef,undef,0.3;}print$/. +$/;for $_237(4,3, ## #### #### #### #### ####### #### #### #### + #### ## 2,1,1,1,0,0,0,0,0){$redroom =$} eq $redroom?' 237':$}; for(121118033,7 +7833563,77899093, 119840081,78947665,77899089,77899089,79406545,){print +(map{$_>0?$redr +oom:$".$".$".$"}( ## #### #### #### #### ####### #### ### +# #### #### ## split'',sprintf("%b", $_))),$/;select undef,undef,undef,0.3;print$/ x +$_237;}print$/.$/ ## #### #### #### #### #### #### ### +# #### #### ## .$/;select undef,undef,undef,1;}for(60649,21161,21161,21161,24303,8666 +5,86665,119433,){ ## #### #### #### #### ####### #### ### +# #### #### ## print +(map{$_>0? $redroom:$".$".$".$"}(split'',sprintf("%021b",$_))), +$/;}print $/ x 10

    L*

    There are no rules, there are no thumbs..
    Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
lost : in : keywords
No replies — Read more | Post response
by Discipulus
on Feb 24, 2019 at 06:32
    die:abs:accept:alarm:atan2:bind:binmode:join:bless:caller:chdir:chmod: chomp:chop:chown:chr:chroot:pos:print:printf:prototype:push:quotemeta: close:closedir:connect:cos:last:crypt:dbmclose:dbmopen:defined:delete: die:dump:each:endgrent:last:endhostent:endnetent:endprotoent:endpwent: endservent:eof:eval:exec:exists:exit:exp:extern:fc:fcntl:fileno:flock: fork:format:formline:getc:or:getgrent:getgrgid:getgrnam:gethostbyaddr: gethostbyname:and:gethostent:or:getlogin:getnetbyaddr:or:getnetbyname: getnetent:getpeername:last:getpgrp:getppid:getpriority:getprotobyname: getprotobynumber:getprotoent:getpwent:getpwnam:getpwuid:getservbyname: getservbyport:and:getservent:and:getsockname:or:getsockopt:given:glob: gmtime:and:goto:or:grep:hex:index:int:import:localtime:lock:log:lstat: map:mkdir:last:ioctl:join:keys:kill:last:lc:lcfirst:length:local:link: or:listen:msgctl:msgget:or:msgrcv:msgsnd:my:next:not:oct:open:opendir: ord:our:or:pack:or:pipe:pop:pos:print:printf:prototype:push:quotemeta: rand:read:and:readdir:readline:and:or:readlink:readpipe:recv:redo:ref: rename:require:reset:return:reverse:rewinddir:rindex:rmdir:say:scalar: seek:last:seekdir:select:semctl:semget:semop:send:setgrent:sethostent: setnetent:and:setpgrp:or:setpriority:or:setprotoent:setpwent:shutdown: and:shmread:shmwrite:setservent:or:setsockopt:and:shift:shmctl:shmget: or:sin:sleep:socket:and:socketpair:and:sort:splice:split:sprintf:sqrt: srand:stat:state:study:substr:symlink:syscall:sysopen:sysread:sysseek: system:syswrite:tell:or:telldir:tie:tied:time:times:truncate:uc:undef: and:unimport:unpack:unshift:untie:use:or:utime:values:vec:wait:unlink: or:ucfirst:umask:waitpid:wantarray:warn:when:or:whereis:whereso:write: seek DATA,0,0and print+uc(substr<DATA>,40,1)and print+(uc substr<DATA> ,68,1)and(print+uc(substr<DATA>,51,1))and!print+(uc substr<DATA>,31,1) __DATA__:and:getservent:and:getsockname:or:getsockopt:given:glob:last: die:abs:accept:alarm:atan2:bind:binmode:join:bless:caller:chdir:chmod: chomp:chop:chown:chr:chroot:pos:print:printf:prototype:push:quotemeta: close:closedir:connect:cos:last:crypt:dbmclose:dbmopen:defined:delete: die:dump:each:endgrent:last:endhostent:endnetent:endprotoent:endpwent: endservent:eof:eval:exec:exists:exit:exp:extern:fc:fcntl:fileno:flock: fork:format:formline:getc:or:getgrent:getgrgid:getgrnam:gethostbyaddr: gethostbyname:and:gethostent:or:getlogin:getnetbyaddr:or:getnetbyname: getnetent:getpeername:last:getpgrp:getppid:getpriority:getprotobyname: getprotobynumber:getprotoent:getpwent:getpwnam:getpwuid:getservbyname: getservbyport:and:getservent:and:getsockname:or:getsockopt:given:glob: gmtime:and:goto:or:grep:hex:index:int:import:localtime:lock:log:lstat: map:mkdir:last:ioctl:join:keys:kill:last:lc:lcfirst:length:local:link: or:listen:msgctl:msgget:or:msgrcv:msgsnd:my:next:not:oct:open:opendir: ord:our:or:pack:or:pipe:pop:pos:print:printf:prototype:push:quotemeta: rand:read:and:readdir:readline:and:or:readlink:readpipe:recv:redo:ref: rename:require:reset:return:reverse:rewinddir:rindex:rmdir:say:scalar: seek:last:seekdir:select:semctl:semget:semop:send:setgrent:sethostent: setnetent:and:setpgrp:or:setpriority:or:setprotoent:setpwent:shutdown: and:shmread:shmwrite:setservent:or:setsockopt:and:shift:shmctl:shmget: or:sin:sleep:socket:and:socketpair:and:sort:splice:split:sprintf:sqrt: srand:stat:state:study:substr:symlink:syscall:sysopen:sysread:sysseek: system:syswrite:tell:or:telldir:tie:tied:time:times:truncate:uc:undef: and:unimport:unpack:unshift:untie:use:or:utime:values:vec:wait:unlink: or:ucfirst:umask:waitpid:wantarray:warn:when:or:whereis:whereso:write:

    L*

    There are no rules, there are no thumbs..
    Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
BEGIN X
1 direct reply — Read more / Contribute
by Discipulus
on Jan 31, 2019 at 16:24
    BEGIN{print','; BEGIN{print'r'; BEGIN{print'e'; BEGIN{print'k'; BEGIN{print'c'; BEGIN{print'a'; BEGIN{print'H'; BEGIN{print' '; BEGIN{print'l'; BEGIN{print'r'; BEGIN{print'e'; BEGIN{print'P'; BEGIN{print' ';BEGIN{print'r'; BEGIN{print'e'; BEGIN{print'h'; BEGIN{print't'; BEGIN{print'o'; BEGIN{print'n'; BEGIN{print'A'; BEGIN{print' '; BEGIN{print't'; BEGIN{print's'; BEGIN{print'u'; BEGIN{print'J'; BEGIN{print''; }}}}}}}}}}}}}; }}}}}}}}}}}}};

    Inspired by Assignment and use statement in the same BEGIN block and

    perl -e "$}.=qq(BEGIN{print qq($_);)for(q(,rekcaH lreP rehtonA tsuJ)=~/./g);$}.=q(})x25;eval$}"

    A little modification after having seen it under the morning light.

    L*

    There are no rules, there are no thumbs..
    Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
cOMPRESSed JaPH,
No replies — Read more | Post response
by kschwab
on Dec 30, 2018 at 13:55
    Run on a VT100 compatible terminal
    #!/usr/bin/perl BEGIN{$^="USE\0cOMPRESS\x1a\x1azLIB"^" ",$^=~s,$, $^,ee};$_=q|M'XL(`*[Q*%P"`Y5231J%(`C<=PJ.VJ)E"U?T\\ZSNYDD>(B)HF_P^R V9@A!A(MN"5<0!=]P[@831@,-!4@,\\(N"1%8[U%)BV[Y-,:12L?1&S.C5]A]F4+RES `)M=WN*$C4R#/YH[YT\\/>:$IY/?&(M#&>VATA0W9VBE7T-U<2LWU%.$ALFQ=J"\\M= ICPR"76N)ZYZS7P<7U/*.ZP!N$BHG,%-BZ,`E+WV@_7_N90.FH18I'@K*69M(LSP4X; :C=:)EP[H@MXNEWIO?[&'U@_#@,?:O54D([YD6E$_3F^+*NOL<Q1+4Y0[.M_SP=<;<Y O0'IR@8@`4$|;y| \n||d;$_=unpack'u';$,='-V4Jfdy{lzz33Se`k33dldN|gs'. '`y!-V 2y{`g}2';$,^="\t"x$,=~y,,,c;$,=~s;^;$,;ee;
Perl Golang Partial Polyglot
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by kschwab
on Dec 30, 2018 at 09:50

    Similar to my earlier Perl Python Partial Polyglot.

    This one runs under either Golang (go run ./script) or Perl, and produces *mostly* the same output. Arguably not a true polyglot since the Go doesn't depend on the Perl, but the Perl certainly depends on the Go.

    //;$_=<<'/*',y'>>''; package main; func main() { print("Just another Golang Hacker,\n"); } //;main() /* s&(\146\w{3})(.*)\x47\w{5}&lc($1^'5 ,C').$2.('dQFX'^4x4)&es;s;$;$_;ee; */
More fun with a reference
1 direct reply — Read more / Contribute
by kschwab
on Dec 22, 2018 at 12:48
    Stealing part of choroba's idea.
    perl -e 's/^/pack+q.a..($^F^$^F**$^F),qq^\x19"\x11\x04mX^^\$\//e/print +'
Just Another Perl Hacker,
1 direct reply — Read more / Contribute
by choroba
on Dec 21, 2018 at 10:43
    Having fun with references.
    print map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[ +{}],[sub{}^*ARGV,3];

    ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
VT100 Screensaver
1 direct reply — Read more / Contribute
by kschwab
on Dec 09, 2018 at 16:27

    Only works on Unix like machines...requires a VT100 compatible terminal like an xterm, and a working "stty" binary. Handles resizing the window while it's running. Ctrl-C to stop it.

    #!/usr/bin/perl use warnings;use strict;my($r,$c);$|=1;init(); sub init{print "\ec";($r,$c)=split' ',qx"stty size";$r-=5;$c-=16}; $SIG{INT}= sub{print "\ec\n";exit};$SIG{WINCH}=sub{init()}; $_='!X!E!EIC%IC%IC%!X!ECu#kCD@3ilowg!E!WICD@biloQgIO#kAr@DiloT@/@j'. '@D@j@%IO#myD@gg!QCu#kC%IO#kO#gO#gC%!MIC%!QCu#kC%IO#ne#me#ni%!MICD'. '@f@/iloQK';s/!/4pa/g;s/@/ilp/g;s/#/KW/g;s/%/Ag/g;tr|A-Za-z0-9+/| -_|; @_=split(/\n/,unpack('u',join($',map(chr(32+length($_)*3/4). $_,/(.{1,60})/gs))));print "\ec\e[2J\e[?25l";srand(); for (;;) { my($x,$y)= map{int(rand($_))+1}($c,$r); for(0..4){print "\e[".($y+$_).";${x}H".$_[$_];} select($\,$\,$\,rand(1.2)+.3); for(0..4){print "\e[".($y+$_).";${x}H"." "x16;} }
Christmas Package Obfuscation
1 direct reply — Read more / Contribute
by kschwab
on Dec 08, 2018 at 14:11
    #!/usr/bin/perl $;;$^;s#^#$\ _-~,..___ .-' .--._ ```--.-----.___ ._^---- (`-...`-. _/,----. ) ````---=. _.-'' ````-- `.___.-.) (---=='' .-' | _.-' _.-. )(`.-._``--.._ .' | |`---..__ .-'.-'.' )| |_ ``--...`. | | ``--.._ ,'.-' ( ( `-.`-. .'| : | | | | --.._`. ) `. `. | : | | | | ( )-.._.') ) ) : | | | | | | | ( ( ) : | | | | (_( | ) ) | : .' | | | | L/ | : .' (__ | | | | :.' `-.._ | | | | : `-.._ | | | |/ `--`_|_ | .' `._ | .' ``-.__ | .' `--`; # and "Happy Holidays" or Merry Christmas! print "Is print broken?\n";print;# guess not?

Set the new obfuscation standard
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