【leetcode】1091. Shortest Path in Binary Matrix
題目如下： In an N by N square grid, each cell is either empty (0) or blocked (1). A clear path from top-left to bottom-right has length k ...
原文：[LeetCode] 1091. Shortest Path in Binary Matrix 二進制矩陣中的最短路徑
Given ann x nbinary matrixgrid, returnthe length of the shortestclear pathin the matrix. If there is no clear path, return . Aclear pathin a binary matrix is a path from thetop leftcell i.e., , to th ...
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