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Once the sublists are sorted, the next step in mergesort is to merge the sorted sublists.
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In a ____, customers or jobs with higher priority are pushed to the front of the queue.
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In a preorder traversal of a binary tree, after visiting a node and before moving to the right subtree, we must save a pointer to the node so that after visiting the right subtree, we can visit the left subtree.
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Trailer nodes at the end of the list should contain a value ____.
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In a doubly linked list, every node contains the address of the next node (except the last node), and every node contains the address of the previous node (except the first node).
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A linked list is a random access data structure such as an array.
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An ____ is an object that produces each element of a container, such as a linked list, one element at a time.
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In ____ notation, the operator is written between the operands.
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The basic operations performed on a B-tree are search the tree, insert an item in the tree, delete an item from the tree, and ____.
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The base case is never reached or does not exist in an infinite recursion.
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