Flatten a multilevel linked list | GeeksforGeeks Given a linked list where in addition to the next pointer...

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Flatten a multilevel linked list | GeeksforGeeks

Given a linked list where in addition to the next pointer, each node has a child pointer, which may or may not point to a separate list. These child lists may have one or more children of their own, and so on, to produce a multilevel data structure, as shown in below figure.You are given the head of the first level of the list. Flatten the list so that all the nodes appear in a single-level linked list. You need to flatten the list in way that all nodes at first level should come first, then nodes of second level, and so on.

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Flatten a multilevel linked list | GeeksforGeeks







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