摘要: A non-negative numbers can be regarded as product of its factors.Write a function that takes an integer n and return all possible combinations of its 阅读全文
posted @ 2017-09-26 13:49 Review->Improve 阅读(551) 评论(0) 推荐(0) 编辑
摘要: You are given a m x n 2D grid initialized with these three possible values. -1 - A wall or an obstacle.0 - A gate.INF - Infinity means an empty room. 阅读全文
posted @ 2017-09-26 12:31 Review->Improve 阅读(505) 评论(0) 推荐(0) 编辑