Flatten a Multilevel Doubly Linked List | LeetCode 430 | C++, Java, Python
*** CORRECTION: C++: line 25 should be, curr = _tail;
Java: line 24 should be, curr = _tail;
Python3: Line 28, curr = _tail
In video it has been shown as curr = tail; In this case it will be slow, since older tail is pointing to curr. So, lots of repeated traversals.
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July LeetCoding Challenge | Problem 10 | Flatten a Multilevel Doubly Linked List | 10 July,
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