摘要：
Given a m * n matrix mat of ones (representing soldiers) and zeros (representing civilians), return the indexes of the k weakest rows in the matrix or 阅读全文
posted @ 2020-02-12 23:01
琴影
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摘要：
Given a non-negative integer num, return the number of steps to reduce it to zero. If the current number is even, you have to divide it by 2, otherwis 阅读全文
posted @ 2020-02-12 17:13
琴影
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