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jesus, day 3 of looks bloody difficult

@calvin Definitely looks to require more thought than programming. Math solution for part 1 doesn't look so bad.

@micah I managed to implement Ulam's spiral (jn the least functional way possible) - now I need to implement the damn pathfinding algorithm...

@calvin Nice, I did some math computing the shell layer and offset from the center, but it's no help at all for part 2, where your spiral impl may be.

winmine.exe @calvin

@micah well, I'm also running into possible stdlib limitations with 2D arrays, ugh

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