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18.11 Imagine you have a square matrix, where each cell (pixel) is either black or white. Design an algorithm to find the maximum subsquare such that all four borders are filled with black pixels. LeetCode上的原题,请参见我之前的解法Maximal Square.书上给了两种解法,但是比较长:
2016年12月18日 星期日 --出埃及记 Exodus 21:13 However, if he does not do it intentionally, but God lets it happen, he is to flee to a place I will designate.人若不是埋伏着杀人,乃是 神交在他手中,我就设下一个地方,他可以往那里逃跑.