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2015年2月27日

Validate Binary Search Tree
摘要： https://oj.leetcode.com/problems/validate-binary-search-tree/Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is ... 阅读全文
posted @ 2015-02-27 20:35 NickyYe 阅读(272) 评论(0) 推荐(0)

Binary Tree Level Order Traversal II
摘要： https://oj.leetcode.com/problems/binary-tree-level-order-traversal-ii/Given a binary tree, return thebottom-up level ordertraversal of its nodes' valu... 阅读全文
posted @ 2015-02-27 14:28 NickyYe 阅读(225) 评论(0) 推荐(0)

Binary Tree Level Order Traversal
摘要： https://oj.leetcode.com/problems/binary-tree-level-order-traversal/Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from... 阅读全文
posted @ 2015-02-27 13:38 NickyYe 阅读(276) 评论(0) 推荐(0)