adventofcode/2015/day12/problem

Advent of Code

--- Day 12: JSAbacusFramework.io ---

   Santa's Accounting-Elves need help balancing the books after a recent order.
   Unfortunately, their accounting software uses a peculiar storage format.
   That's where you come in.

   They have a JSON document which contains a variety of things: arrays
   ([1,2,3]), objects ({"a":1, "b":2}), numbers, and strings. Your first job is
   to simply find all of the numbers throughout the document and add them
   together.

   For example:

     • [1,2,3] and {"a":2,"b":4} both have a sum of 6.

     • [[[3]]] and {"a":{"b":4},"c":-1} both have a sum of 3.

     • {"a":[-1,1]} and [-1,{"a":1}] both have a sum of 0.

     • [] and {} both have a sum of 0.

   You will not encounter any strings containing numbers.

   What is the sum of all numbers in the document?

   Your puzzle answer was 191164.

--- Part Two ---

   Uh oh - the Accounting-Elves have realized that they double-counted
   everything red.

   Ignore any object (and all of its children) which has any property with the
   value "red". Do this only for objects ({...}), not arrays ([...]).

     • [1,2,3] still has a sum of 6.

     • [1,{"c":"red","b":2},3] now has a sum of 4, because the middle object is
       ignored.

     • {"d":"red","e":[1,2,3,4],"f":5} now has a sum of 0, because the entire
       structure is ignored.

     • [1,"red",5] has a sum of 6, because "red" in an array has no effect.

   Your puzzle answer was 87842.

   Both parts of this puzzle are complete! They provide two gold stars: **

   At this point, you should return to your advent calendar and try another
   puzzle.

   If you still want to see it, you can get your puzzle input.

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