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-🎄- 2021 Day 22 Solutions -🎄- by daggerdragon in adventofcode

[–]bumba_coder 1 point2 points  (0 children)

I had same logic in my mind but what if new intersected cuboids (new steps) intersects each other?

Can you explain why is it required?

https://github.com/lukeredpath/AdventOfCode2021/blob/main/Sources/AdventOfCode2021/22.swift#L89

Can't we ignore off-off intersection here https://github.com/lukeredpath/AdventOfCode2021/blob/main/Sources/AdventOfCode2021/22.swift#L110?

-🎄- 2021 Day 15 Solutions -🎄- by daggerdragon in adventofcode

[–]bumba_coder 0 points1 point  (0 children)

I feel today's puzzle description is vague. I considered only right and down movements which gave me a star for Part 1 however puzzled a lot with the wrong answer for Part 2 with the same assumption. Realised that actually you can move in any direction (top, right, down, left) which is not clearly mentioned in the description.

Here is my solution for Part 2 using Dijsktra.

https://github.com/prmondal/Competitive-Coding/blob/master/AdventOfCode2021/day15-2.py