[LeetCode] 430. Flatten a Multilevel Doubly Linked List 壓平一個多層的雙向鏈表
You are given a doubly linked list which in addition to the next and previous pointers, it could have a child pointer, which may or may not point ...
原文：LeetCode 430. Flatten a Multilevel Doubly Linked List
原題鏈接在這里：https: leetcode.com problems flatten a multilevel doubly linked list description 題目： You are given a doubly linked list which in addition to the next and previous pointers, it could have a chi ...
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