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Given a value x and a sorted doubly linked list of different nodes (no two nodes have the same data). Count the number of triplets in the list that add up to x. The expected time complexity is O(n^2) and the expected space complexity is O(1).

Given a value x and a sorted doubly linked list of different nodes (no two nodes have the same data). Count the number of triplets in the list that add up to x. The expected time complexity is O(n^2) and the expected space complexity is O(1).

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

Following the approach os using two pointers: From left to right, traverse the doubly linked list. Initialize two pointers for each current node during the traversal: first = pointer to the node next ...

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Given a value x and a sorted doubly linked list of different nodes (no two nodes have the same data). Count the number of triplets in the list that add up to x. The expected time complexity is O(n^2) and the expected space complexity is O(1).

Hardlinked-listdata-structures

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