摘要： 题目： Given a non-empty string check if it can be constructed by taking a substring of it and appending multiple copies of the substring together. You m 阅读全文

摘要： 题目： Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has 阅读全文

摘要： 题目： Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementin 阅读全文