百草园

摘要： Paint HouseThere are a row ofnhouses, each house can be painted with one of the three colors: red, blue or green. The cost of painting each house with... 阅读全文

摘要： Shortest Word DistanceGiven a list of words and two wordsword1andword2, return the shortest distance between these two words in the list.For example,A... 阅读全文

摘要： Integer to English WordsConvert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231- 1.For examp... 阅读全文

摘要： 最长合成字符串题目描述有一组单词，请编写一个程序，在数组中找出由数组中字符串组成的最长的串A，即A是由其它单词组成的(可重复)最长的单词。给定一个string数组str，同时给定数组的大小n。请返回最长单词的长度，保证题意所述的最长单词存在。测试样例：["a","b","c","ab","bc","... 阅读全文

摘要： Trapping Rain Water IIGivennxmnon-negative integers representing an elevation map 2d where the area of each cell is1x1, compute how much water it is a... 阅读全文

摘要： Coins in a Line IIIThere arencoins in a line. Two players take turns to take a coin from one of the ends of the line until there are no more coins lef... 阅读全文

摘要： 子串判断题目描述现有一个小写英文字母组成的字符串s和一个包含较短小写英文字符串的数组p，请设计一个高效算法，对于p中的每一个较短字符串，判断其是否为s的子串。给定一个string数组p和它的大小n，同时给定strings，为母串，请返回一个bool数组，每个元素代表p中的对应字符串是否为s的子串。保... 阅读全文

摘要： 最大子方阵题目描述有一个方阵，其中每个单元(像素)非黑即白(非0即1)，请设计一个高效算法，找到四条边颜色相同的最大子方阵。给定一个01方阵mat，同时给定方阵的边长n，请返回最大子方阵的边长。保证方阵变长小于等于100。测试样例：[[1,1,1],[1,0,1],[1,1,1]],3返回：3要看清... 阅读全文

摘要： Number of Islands IIGiven a n,m which means the row and column of the 2D matrix and an array of pair A( size k). Originally, the 2D matrix is all 0 wh... 阅读全文

摘要： Different Ways to Add ParenthesesGiven a string of numbers and operators, return all possible results from computing all the different possible ways t... 阅读全文