摘要: Using DFS to traverse the tree. 4 cases for each node in the tree: case 1: it's a leaf node, set a pointer pointing to the node. We're reaching an end 阅读全文
posted @ 2016-01-30 06:55 爱推理的骑士 阅读(183) 评论(0) 推荐(0) 编辑