2018年3月1日
【easy】671. Second Minimum Node In a Binary Tree
摘要： Given a non-empty special binary tree consisting of nodes with the non-negative value, where each node in this tree has exactly two or zero sub-node. 阅读全文
posted @ 2018-03-01 20:25 Sherry_Yang 阅读(107) 评论(0) 推荐(0) 编辑