玲珑子

摘要： 题目： Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one candy o 阅读全文

摘要： 题目： Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word orde 阅读全文

摘要： 题目： Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. E 阅读全文