摘要: C. Strange Game On MatrixIvan is playing a strange game.He has a matrix a with n rows and m columns. Each element of the matrix is equal to either 0 or 1. Rows and columns are 1-indexed. Ivan can repl... 阅读全文
posted @ 2017-10-17 17:26 zprhhs 阅读(344) 评论(0) 推荐(0) 编辑
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