542. 01 Matrix#27
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| int rows = mat.size(); | ||
| // if (rows == 0) return mat; | ||
| int cols = mat[0].size(); | ||
| // Use a safe "infinity" that won't overflow when adding 1 |
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全体的に読みやすく勉強になりました。
最代入しない変数のであれば、const を付けても良いと思いました。
const int rows = mat.size();
const int cols = mat[0].size();
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542. 01 Matrix
https://leetcode.com/problems/01-matrix/