added merge two sorted list #1805 #1823
Merged
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Given two sorted linked lists, the task is to merge them into one sorted linked list. The merged linked list should be created by splicing together the nodes of the input lists.
📥 Pull Request
Description
Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.
Merge the two lists into one sorted list. The list should be made by splicing together the nodes of the first two lists.
We are supposed to return the head of the merged linked list.
Fixes #1805
Type of change
Checklist: