2014年10月20日
LeetCode Path Sum
摘要： Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.Fo... 阅读全文
posted @ 2014-10-20 22:25 birdhack 阅读(100) 评论(0) 推荐(0)
LeetCode Binary Tree Level Order Traversal II
摘要： Given a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For exa... 阅读全文
posted @ 2014-10-20 22:13 birdhack 阅读(129) 评论(0) 推荐(0)