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

摘要： 题目； You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all the next greater numbers for nu 阅读全文

摘要： 题目： For a web developer, it is very important to know how to design a web page's size. So, given a specific rectangular web page’s area, your job by n 阅读全文

摘要： 题目： Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Note: The input array will only contain 0 and 1. The len 阅读全文

摘要： 题目： Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: Example 1: 阅读全文

摘要： 题目： Winter is coming! Your first job during the contest is to design a standard heater with fixed warm radius to warm all the houses. Now, you are giv 阅读全文

摘要： 题目： You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontall 阅读全文

摘要： 题目： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, ca 阅读全文

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