diff options
Diffstat (limited to 'src/2015/day12/README.md')
| -rw-r--r-- | src/2015/day12/README.md | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/2015/day12/README.md b/src/2015/day12/README.md index 0784931..f242cd3 100644 --- a/src/2015/day12/README.md +++ b/src/2015/day12/README.md @@ -15,4 +15,13 @@ You will not encounter any strings containing numbers. What is the sum of all numbers in the document? +--- 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. |