Maybe this'll be our repeating problem (like the opcodes last year)... Different starting points, different types of obstacles in the snow, terrain to avoid, ...
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Nice! Didn't know about
product(); will have to keep that in a pocket.I like that your solution allows for an arbitrary starting point, rather than always just (0,0).
One thing I've learned about AoC - try not to bake in any assumptions in part 1!
Maybe this'll be our repeating problem (like the opcodes last year)... Different starting points, different types of obstacles in the snow, terrain to avoid, ...