2016年9月17日
77. Combinations
摘要： Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. For example,If n = 4 and k = 2, a solution is: 阅读全文
posted @ 2016-09-17 06:18 咖啡中不塌缩的方糖 阅读(131) 评论(0) 推荐(0)
89. Gray Code
摘要： The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total num 阅读全文
posted @ 2016-09-17 05:46 咖啡中不塌缩的方糖 阅读(154) 评论(0) 推荐(0)
320. Generalized Abbreviation
摘要： Write a function to generate the generalized abbreviations of a word. Example: Given word = "word", return the following list (order does not matter): 阅读全文
posted @ 2016-09-17 05:18 咖啡中不塌缩的方糖 阅读(169) 评论(0) 推荐(0)