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Create 0063-unique-paths-ii.md #39

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@docto-rin docto-rin commented Oct 28, 2025

oda
oda reviewed Oct 30, 2025
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0063-unique-paths-ii/0063-unique-paths-ii.md
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- 特に迷いなくかけた。
- 答えが0になるあらゆるパターンでearly returnになることに気づき、top-downの優れている点だと感じた。
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@oda oda Oct 30, 2025

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一応、先の深さを考えておきたいですね。row + col くらいですかね?

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docto-rin commented Nov 2, 2025

再帰の深さ -> マンハッタン距離（L_1-距離）よりrow + col - 2

https://ja.wikipedia.org/wiki/%E3%83%9E%E3%83%B3%E3%83%8F%E3%83%83%E3%82%BF%E3%83%B3%E8%B7%9D%E9%9B%A2

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