Solving day 8 #9
Merged
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Summary
Solved day 8. First iterate over the input to find all the towers, then iterate through each list of frequency towers, creating a pair of antinodes for each pair of towers. Only those antinodes on the map are added to a set (created using a map).
I used package state to store the size of the puzzle, which is reset each time the
parseInputmethod is called.