二叉树叶子顺序遍历 · binary tree leaves order traversal

[抄题]:

给定一个二叉树,像这样收集树节点:收集并移除所有叶子,重复,直到树为空。

给出一个二叉树:

           1
          /          2   3
        / \
       4   5

返回 [[4, 5, 3], [2], [1]].

[暴力解法]:

时间分析:

空间分析:

[思维问题]:

觉得要用BFS

[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/8452906.html

时间: 2024-10-05 05:00:37

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