摘要：
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted f 阅读全文
摘要：
题目： Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place.（Medium） 分析： 题意很简单，就是把为0的元素所在的行和列都置0； 首先不能直接边循环边做，这样会 阅读全文