最小编辑距离的定义:编辑距离(Edit Distance),又称Levenshtein距离.是指两个字串之间,由一个转成还有一个所需的最少编辑操作次数.许可的编辑操作包含将一个字符替换成还有一个字符.插入一个字符,删除一个字符. 比如将kitten一字转成sitting: sitten(k→s) sittin(e→i) sitting(→g) 年提出这个概念. Thewords `computer' and `commuter' are very similar, and a change of…
Given two strings S and T, determine if they are both one edit distance apart. 给定两个字符串S和T,确定它们是否都是是一步变换得到的. class Solution { func isOneEditDistance(_ s:String, _ t:String) -> Bool{ var num:Int = min(s.count, t.count) ..<num { if s.count == t.count {…
题目 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 have the following 3 operations permitted on a word: a) Insert a character b) Delete a character c) Re…