00d62c1b
= 00d62c1b
{title2=2}
https://arcprize.org/play?task=00d62c1b
Hard input constraints:
* inputs have two colors: green and black
Hard output constraints:
* output has three colors: black, green and yellow
* output has same size as input
* green is copied from input to output
* output differs from input by making some black pixels yellow. Which pixels are becoming yellow?
* output differs from input by making inner regions (non-diagonal) yellow with non-diagonal flood fill