Day 5: If You Give a Seed a Fertilizer
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Well, then we have the same solution but coded very differently. Here’s mine.
ruleAppliedis one function with almost all logic. I take a range and compare it to a rule’s source range (50 98 2 is a rule). Overlaps get transformed and collected into the first sequence and everything that left goes in the second. I need twoseqs there, for transformed values to skip next rules in the same map.Repeat for each rule and each map (seq[Rule]). And presto, it’s working!
Yeah, roughly the same idea. I guess I could have just used HSlice for my range type, I thought maybe there was some special magic to it.
It looks like your if-else ladder misses a corner case, where one range only intersects with the first or last element of the other. Switching to
<=and>=for those should take care of it though.Thank you, should be fixed now.