摘要: link Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADO 阅读全文
posted @ 2017-10-04 23:58 bbbbq 阅读(135) 评论(0) 推荐(0) 编辑
摘要: link Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.) You 阅读全文
posted @ 2017-10-04 23:13 bbbbq 阅读(123) 评论(0) 推荐(0) 编辑