63. Unique Paths II#32
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nodchip
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Apr 23, 2026
| if (row == 1 && column == 1 && obstacleGrid[row - 1][column - 1]) { | ||
| return 0; | ||
| } | ||
| vector<vector<int>> ways(row, vector<int>(column)); |
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こちらの問題も Unique Paths I と同様に、空間計算量を O(column) にすることができます。興味があれば調べることをお勧めいたします。
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ありがとうございます！alternative-solution.cppで追加してみました。
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この問題：https://leetcode.com/problems/unique-paths-ii/description/
次に解く問題：https://leetcode.com/problems/house-robber/description/