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：
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. 给定一个m × n矩阵，如果一个元素为0，则将其整个行和列设置为0。 （1）思想1：用两个一维数组：flag_r 阅读全文