摘要: Decode Ways A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, 阅读全文
posted @ 2016-11-21 21:02 WillWu 阅读(172) 评论(0) 推荐(0) 编辑
摘要: Edit Distance Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 st 阅读全文
posted @ 2016-11-21 20:30 WillWu 阅读(102) 评论(0) 推荐(0) 编辑