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Given a sequence of words, check whether it forms a valid word square. A sequence of words forms a valid word square if the kth row and column read th 阅读全文
posted @ 2016-11-24 10:33
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摘要：
463. Island Perimeter 463. Island Perimeter You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents wat 阅读全文
posted @ 2016-11-24 09:51
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