Western Governors University (WGU) ICSC2100 C949 Data Structures and Algorithms I Practice Exam

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If there are 3 items in a stack, and the next line of code is "push('item');", how many items are now in the stack?

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When you push an item onto a stack, you are adding it to the top of the stack. Stacks operate on a Last In, First Out (LIFO) principle, meaning that the most recently added item is the one that will be removed next.

In this case, you have a stack that already contains 3 items. When you execute the command to push a new item onto the stack, you add one more item to the existing total. Therefore, you will have 3 items plus the newly added item, resulting in a total of 4 items now in the stack.

The correct understanding here is that each push operation increases the count of items in the stack by one, which leads to a cumulative total of items stored within the stack at any point in time.

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