2019年2月10日
[LeetCode 987] Vertical Order Traversal of a Binary Tree
摘要： Given a binary tree, return the vertical order traversal of its nodes values. For each node at position (X, Y), its left and right children respective 阅读全文
posted @ 2019-02-10 10:20 Review->Improve 阅读(899) 评论(0) 推荐(0)
[LeetCode 984] String Without AAA or BBB
摘要： Given two integers A and B, return any string S such that: S has length A + B and contains exactly A 'a' letters, and exactly B 'b' letters; The subst 阅读全文
posted @ 2019-02-10 02:08 Review->Improve 阅读(570) 评论(0) 推荐(0)