AdventOfCode/2015/12/12.md

## \-\-- 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](http://json.org/) 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 \-\-- {#part2}

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](/2015) and
try another puzzle.

If you still want to see it, you can [get your puzzle
input](12/input).