Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- data МАТH data ENGL null next next top top data MATH next null The above is a stack of textbooks. The top is a node to record the address of the top element of a stack. 2. Which of the following statement push the ENGL textbook to the top? top.next = new Node("ENGL", top); a. b. top = new Node("ENGL", top) Describe the reason of your choice. Your answer is (a or b) Will the push action take time in 0(1) or 0(n)? Next Page O Type here to searcharrow_forwarddef delete task (..., ...): I param: task_collection (list) holds all tasks; param: an integer ID indexes each task (stored as a dictionary) (str) - a string that is supposed to represent an integer ID that indexes the task in the list returns: 0 if the collection is empty. -1 - if the provided parameter is not a string or if it is not a string that contains a valid integer >=0 representing the task's position on the list. Otherwise, returns the item (dict) that was removed from the provided collection. 11 11 11arrow_forward2 DO NOT COPY FROM OTHER WEBSITES Correct and detailed answer will be Upvoted else downvoted. Also explain why other options are FALSE. Thank you!arrow_forward
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