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Learn Data Structures and Algorithms in Java

Problem: Merge Two Sorted Lists

Explore how to merge two sorted linked lists into a single sorted linked list by iteratively comparing nodes. Learn to implement this efficient method using dummy nodes and pointer manipulation in Java, and understand the time and space complexity of the solution.

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Statement

Given the heads of two sorted linked lists, list1 and list2, merge them into a single sorted linked list by splicing together the nodes from both input lists.

Return the head of the resulting merged linked list.

Note: Both list1 and list2 are sorted in non-decreasing order.

Constraints:

  • The number of nodes in each list is in the range [0,50][0, 50].

  • −100≤-100 \leq Node.val ...