(p&> # n&>) t NB. is ok too. So... why (p#n)&>t is not? And how to deal with this kind of problems?
On Sun, Dec 4, 2016 at 8:18 PM, Moon S <[email protected]> wrote: > OK, simple case > > t NB. three boxed strings > > ┌──┬──┬──┐ > > │22│33│44│ > > └──┴──┴──┘ > > p NB. test for all two's > > *./@('2' = ]) > > n NB. append zero and cvt to number > > ".@('0' ,~ ]) > > (p&>t)#(n&>t) NB. ok > > 220 > > (p # n)&>t NB. zero-padded > > 220 > > 0 > > 0 > > dissect doesn't show anything for p and n in the second case; and what's > "3 1(1)" for '#'? > > http://mas.orgfree.com/adventofcode2016/diss1.png > > > > On Sun, Dec 4, 2016 at 6:14 PM, Henry Rich <[email protected]> wrote: > >> I have no time to help, other than to suggest you use dissect to see >> what's happening. >> >> Henry Rich >> >> >> On 12/4/2016 11:02 AM, Moon S wrote: >> >>> I have this code: >>> >>> t =: cutLF CR-.~fread '04.dat' >>> a =: a.{~97+i.26 NB. 'abc...z' >>> c =: 5{.a\:[:+/"1 a=/[:/:~_10}.'-'-.~] NB. calculate checksum string >>> v =: c -: _1}._6&{. NB. checksums match = good string >>> n =: [:".3{._10{.] NB. extract number (id) >>> s =: 4 :'((26|x+])&.(_97+a.i.]))"0 y' NB. shift cypher, n s 'str' >>> p =. +./@('north' E. n s ]) NB. if decrypted string contains >>> 'north' >>> echo +/(n*v)&> t NB. sum of ids of good strings >>> echo +/(n*p)&> t NB. sum of ids of strings with >>> 'north' >>> exit 0 NB. ^^^ we assume such >>> string >>> is only one >>> >>> It works, but I planned to use '#' instead of +/...*... for the second >>> task. >>> >>> Verb n takes a number from a string. >>> Verb p decrypts a string using the number and tells if it contains >>> 'north'. >>> So far so good. >>> Noun t is the input data as boxed strings. >>> n&> t gives numbers (like 111 222 333 444) >>> p&> t gives a boolean vector (like 0 0 1 0) >>> The idea was to have something like "(p # n)&> t" but that didn't work. >>> (p&> t)#(n&> t) is ok >>> (p # n)&> t is not >>> Something wrong with ranks, I guess. Any idea how to use (p # n)? >>> >>> Thank you. >>> Georgiy Pruss >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
