Paste: aoc2023 day 2

! Copyright (C) 2023 Doug Coleman.
! See https://factorcode.org/license.txt for BSD license.
USING: aoc2023 arrays ascii assocs kernel math.parser
math.vectors sequences sequences.extras splitting ;
IN: aoc2023.day2

: day2-input ( -- string ) 2 ?download-aoc2023-input ;

: day2-input-parsed ( -- assoc )
    day2-input split-lines [
        "Game " ?head drop ": " split1
        [ string>number ]
        [
            ";" split [
                "," split [
                    [ { 0 0 0 } clone ] dip
                    [ blank? ] trim " " split1
                    [ string>number ] [ { "red" "green" "blue" } index pick set-nth ] bi*
                ] map [ v+ ] 1reduce
            ] map
        ] bi* 2array
    ] map ;

: day2-1 ( -- n )
    day2-input-parsed
    [ { 13 14 15 } '[ _ v< ] map concat vall? ] filter-values keys sum ;

: day2-2 ( -- n )
    day2-input-parsed
    values [ [ vmax ] 1reduce product ] map-sum ;