A program needs two stacks of positive integers: one containing elements with values less than or...
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A program needs two stacks of positive integers: one containing elements with values less than or equal to 1000 and the other containing elements with values larger than 1000. The total number of elements in the small-value stack and the large-value stack combined is never more than 500 at any time, but we cannot predict how many will be in each stack. (Initially both will be empty; later on the stacks could be evenly divided, or all the elements could be in the small-value stack, and so on.) For efficiency reasons, we want to implement both stacks using a single array of size 500. Can you think of a way to do this? (a) Sketch what this "double-stack" array would look like. Explain how push and pop operations would work, accordingly. (3 marks) (b) Describe the private member variables of such a "double-stack" array based class, give their initial values, and explain how they are modified by push and pop operations. Coding is not required. (3 marks) A program needs two stacks of positive integers: one containing elements with values less than or equal to 1000 and the other containing elements with values larger than 1000. The total number of elements in the small-value stack and the large-value stack combined is never more than 500 at any time, but we cannot predict how many will be in each stack. (Initially both will be empty; later on the stacks could be evenly divided, or all the elements could be in the small-value stack, and so on.) For efficiency reasons, we want to implement both stacks using a single array of size 500. Can you think of a way to do this? (a) Sketch what this "double-stack" array would look like. Explain how push and pop operations would work, accordingly. (3 marks) (b) Describe the private member variables of such a "double-stack" array based class, give their initial values, and explain how they are modified by push and pop operations. Coding is not required. (3 marks)
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Initially top1 1 top2 500 Push inserts by increasing top1 for stack1 and by decreasing top2 f... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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