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You can initialize a pointer variable by setting it to ____.
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If the queue is nonempty, the operation top returns the first element of the queue.
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If every recursive call results in another recursive call, then the recursive function (algorithm) is said to have infinite recursion.
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Building a linked list forward places the new item to be added at the beginning of the linked list.
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To specify a function as a formal parameter to another function, we specify the function type, followed by the function name as a pointer, followed by the parameter types of the function.
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A technique in which one system models the behavior of another system is called ____.
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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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