摘要： 原题链接在这里：https://leetcode.com/problems/reorder-data-in-log-files/ 题目： You have an array of logs. Each log is a space delimited string of words. For eac 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/prison-cells-after-n-days/ 题目： There are 8 prison cells in a row, and each cell is either occupied or vacant. Ea 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/rotting-oranges/ 题目： In a given grid, each cell can have one of three values: the value 0 representing an empty 阅读全文