就错了呗 =p

用的stream流和过滤器以及lambda表达式

就是说你的array的长度是2 但是实际上应该是要3 所以你可能要检查下你的编码了 ~~

nice code！！！

我的荣幸！😊

很棒的解决方案，我从此解决方案中学到了新东西，谢谢！

smart guy!

The answer for this test case is all of the words { "arp", "live", "strong" } which are contained in a1 but also substrings to a2 in alphabetic order, so it is correct.

我通过了五个测试，array lengths differed, expected.length=3 actual.length=2 我想问一下这个是怎么回事？

manual notification, see above

你好，我第一次接触到这种类型的递归方式，可以请你大致的帮我理解一下这段代码是怎么工作的吗？或者告诉我该去哪学习有关此知识，不胜感激！

你好，可以跟我解释一下递归是怎么运作的吗？

thx i hadnt got tf is p lmao there is no explanation

Ya, got it. Problem was in my code -last condition whether k is intiger or not. Thannks!!