摘要： 原题链接在这里：https://leetcode.com/problems/4-keys-keyboard/description/ 题目： Imagine you have a special keyboard with the following keys: Key 1: (A): Print 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/2-keys-keyboard/description/ 题目： Initially on a notepad only one character 'A' is present. You can perform two o 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/output-contest-matches/description/ 题目： During the NBA playoffs, we always arrange the rather strong team to pla 阅读全文