2017年7月10日
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: Input: 3 / \ 9 20 / \ 15 7 Outp 阅读全文
posted @ 2017-07-10 12:14 amazingzoe 阅读(326) 评论(0) 推荐(0) 编辑