using System; using System.Collections.Generic; class Solution { /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * longest common subsequence * @param s1 string字符串 the string * @param s2 string字符串 the string * @return string字符串 */ public string LCS (string s1, string s2) { var dp = new int[s1.Length+1,...