二叉树垂直遍历 · Binary Tree Vertical Order Traversal

[抄题]:

给定二叉树,返回其节点值的垂直遍历顺序。 (即逐列从上到下)。
如果两个节点在同一行和同一列中,则顺序应 从左到右

给定一个二叉树 {3,9,20,#,#,15,7}

   3
  / /   9  20
    /   /    15   7

返回垂直遍历顺序:[[9],[3,15],[20],[7]]

给定一个二叉树 {3,9,20,#,#,15,7}

     3
    /   /     9   8
  /\  / /  \/   4  01   7

返回垂直遍历顺序:[[4],[9],[3,0,1],[8],[7]]

[暴力解法]:

时间分析:

空间分析:

[思维问题]:

[一句话思路]:

[输入量]:空: 正常情况:特大:特小:程序里处理到的特殊情况:异常情况(不合法不合理的输入):

[画图]:

[一刷]:

[二刷]:

[三刷]:

[四刷]:

[五刷]:

[五分钟肉眼debug的结果]:

[总结]:

[复杂度]:Time complexity: O() Space complexity: O()

[英文数据结构或算法,为什么不用别的数据结构或算法]:

[其他解法]:

[Follow Up]:

[LC给出的题目变变变]:

[代码风格] :

原文地址:https://www.cnblogs.com/immiao0319/p/8453184.html

时间: 2024-08-15 00:58:13

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