Given a linked list with each node representing a linked list and two pointers of its type given below. You need to flatten the lists into a single linked list. The flattened linked list also needs to be sorted. Discuss the approach.

Given a linked list with each node representing a linked list and two pointers of its type given below. You need to flatten the lists into a single linked list. The flattened linked list also needs to be sorted. Discuss the approach.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, linked-list, topic-specific, data-structures

参考答案摘要

Pointer to the next node in the main list (the "right" pointer). Pointer to a linked list, this node being the head (the 'down' pointer). The approach is to use the merge() procedure of merge sort for...

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