2017年7月26日
[Leetcode] Binary tree-- 637. Average of Levels in Binary Tree
摘要： Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: # it actually examines the know 阅读全文
posted @ 2017-07-26 14:06 安新 阅读(133) 评论(0) 推荐(0) 编辑