摘要: JAVA 回溯解法: public final String[] permutation(String s) { Set<String> reSet = new HashSet<String>(); search(s, 0, reSet, new StringBuilder(), new HashS 阅读全文
posted @ 2020-08-02 18:28 牛有肉 阅读(225) 评论(0) 推荐(0) 编辑