Logica seems pretty cool! Any desire to make it available for others to use?
Best, John. > On Oct 2, 2019, at 9:15 AM, KUSUMOTO Norio <kusum...@na.rim.or.jp> wrote: > > 2019/09/23 18:03、Alexander Ilin <ajs...@yandex.ru>のメール: >> >> >> Have you used the `backtrack` vocab for this? >> https://re-factor.blogspot.com/2015/06/send-more-money.html > > I ported a Prolog program to solve the same puzzle. > > > > USING: logica lists assocs sequences kernel math > locals formatting io ; > IN: logica.test.money > > LOGIC-PREDS: sumo sum1o digitsumo delo nonzeroo donaldo moneyo ; > LOGIC-VARS: S E N D M O R Y A L G B T > N1 N2 C C1 C2 D1 D2 L1 > Digits Digs Digs1 Digs2 Digs3 ; > > { sumo N1 N2 N } { > { sum1o N1 N2 N 0 0 L{ 0 1 2 3 4 5 6 7 8 9 } __ } > } si > > { sum1o L{ } L{ } L{ } 0 0 Digits Digits } semper > { sum1o [ D1 N1 cons ] [ D2 N2 cons ] [ D N cons ] C1 C Digs1 Digs } { > { sum1o N1 N2 N C1 C2 Digs1 Digs2 } > { digitsumo D1 D2 C2 D C Digs2 Digs } > } si > > { digitsumo D1 D2 C1 D C Digs1 Digs } { > { delo D1 Digs1 Digs2 } > { delo D2 Digs2 Digs3 } > { delo D Digs3 Digs } > [ [ [ D1 of ] [ D2 of ] [ C1 of ] tri + + ] S is ] > [ [ S of 10 mod ] D is ] > [ [ S of 10 / >integer ] C is ] > } si > > { delo A L L } { { nonvaro A } | } si > { delo A [ A L cons ] L } semper > { delo A [ B L cons ] [ B L1 cons ] } { delo A L L1 } si > > > { moneyo L{ 0 S E N D } > L{ 0 M O R E } > L{ M O N E Y } > } semper > > { donaldo L{ D O N A L D } > L{ G E R A L D } > L{ R O B E R T } > } semper > > :: S-and-M-can't-be-zero ( seq -- seq' ) > seq [| hash | > 1 hash N1 of list>array nth 0 = not > 1 hash N2 of list>array nth 0 = not and > ] filter ; > > :: print-puzzle ( hash-array -- ) > hash-array > [| hash | > " " printf hash N1 of list>array [ "%d " printf ] each nl > "+ " printf hash N2 of list>array [ "%d " printf ] each nl > "----------------" printf nl > " " printf hash N of list>array [ "%d " printf ] each nl nl > ] each ; > > > > > IN: scratchpad [ { { moneyo N1 N2 N } { sumo N1 N2 N } } query > S-and-M-can't-be-zero > print-puzzle > ] time > 0 9 5 6 7 > + 0 1 0 8 5 > ---------------- > 1 0 6 5 2 > > Running time: 0.320353468 seconds > > > -- > KUSUMOTO Norio > > > > _______________________________________________ > Factor-talk mailing list > Factor-talk@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/factor-talk _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
