原文:03-3. Tree Traversals Again (PAT) - 樹的遍歷問題

An inorder binary tree traversal can be implemented in a non recursive way with a stack. For example, suppose that when a node binary tree with the keys numbered from to is traversed, the stack opera ...

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03-3 Tree Traversals Again(25 分)

An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree ...

Mon Apr 09 19:06:00 CST 2018 0 1057
PAT A 1119. Pre- and Post-order Traversals (30)【二叉樹遍歷

No.1119 題目:由前序后序二叉樹序列,推中序,判斷是否唯一后輸出一組中序序列 思路:前序從前向后找,后序從后向前找,觀察正反樣例可知,前后序不唯一在於單一子樹是否為左右子樹。 判斷特征:通過查找后序序列中最后一個結點的前一個在先序中的位置,來確定是否可以划分左右孩子 ...

Sat Nov 26 08:18:00 CST 2016 0 1439
遍歷 | Tree Traversal

遍歷方式總體上有兩種:DFS和BFS; 其中DFS包含了前序、中序和后序遍歷,而BFS則為層次遍歷。 DFS的實現方式: (1) 遞歸; (2) 非遞歸,使用輔助棧; 遞歸程序 public class Recursion { public void ...

Thu Jun 25 15:58:00 CST 2015 0 1906
 
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