Winner solution, (but you didn't submit it at 12:18 :P)
using complex encoding for pairs should probably always be done? It makes your
part 2 especially elegant.
----- Original Message -----
From: Alex Shroyer <ashro...@gmail.com>
To: programm...@jsoftware.com
Sent: Thursday, December 3, 2015 11:25 AM
Subject: Re: [Jprogramming] advent of code - day 3
I was stuck at '^v<>'i.s , but came up with these after I peeked at someone
else's solution:
part1=:#~.,+/\0,0j1 0j_1 _1 1{~'^v<>'i.s
part2=:#~.,+/\0,0j1 0j_1 _1 1{~'^v<>'i._2]\s
On Thu, Dec 3, 2015 at 8:59 AM, Joe Bogner <joebog...@gmail.com> wrote:
> Mine:
>
> data=:fread 'advent2015/day3.txt'
> getMoves=: ((0,1),(0,_1),(1,0),:(_1,0)) {~ ('^v><' i. ])
> addStart =: (1 2 $ 0) , ]
> smoutput answer1 =: # ~. +/\ addStart @: getMoves data
> smoutput answer2 =: # ~. _2[\ ; +/\"2 (((0,1) $~ #) addStart@,./.
> getMoves) data
>
>
>
>
> On Thu, Dec 3, 2015 at 7:00 AM, Ryan Eckbo <ec...@cim.mcgill.ca> wrote:
> > Data=. }: freads'/tmp/input.txt'
> > houses=: 3 : '+/\ (0 0), (4 2$0 1 1 0 0 _1 _1 0){~ ''^>v<'' i. y'
> >
> > # part 1
> > {. $ ~. houses Data
> >
> > # part 2
> > santa=. 2 | i. # Data
> > robo=. -. santa
> > {. $ ~. (santa&# ,&shouses robo&#) Data
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