摘要： 原题链接在这里：https://leetcode.com/problems/shortest-distance-from-all-buildings/ 题目： You want to build a house on an empty land which reaches all buildings 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/smallest-rectangle-enclosing-black-pixels/ 题目： An image is represented by a binary matrix with 0 as a white pixe 阅读全文