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Recurisve: Iteratve: 阅读全文
posted @ 2019-02-02 14:50
南岛的森林
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摘要:
题目: Given an n-ary tree, return the preorder traversal of its nodes' values. For example, given a 3-ary tree: Return its preorder traversal as: [1,3,5 阅读全文
posted @ 2019-02-02 11:37
南岛的森林
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