Sure, Natalie9930! Let's tackle each part of the question step-by-step.
Part a: Insert the input into allStack
Explanation
The code defines the Stack class and implements the Push and isFull functions. It then creates an instance of Stack and inserts the input array into it.
Step-by-step Instruction
▪
Create an instance of Stack and insert input: Use a loop to push each item from the input array into the stack
Time Complexity
O(n) where n is the number of elements in the input array
Space Complexity
O(1) for the stack operations, O(n) for the input array
Part b: Remove even numbers from allStack into evenStack and odd numbers into oddStack
Explanation
The code defines the Pop and isEmpty functions. It then separates even and odd numbers from allStack into evenStack and oddStack, respectively.
Step-by-step Instruction
▪
Separate even and odd numbers: Use a loop to pop items from allStack and push them into evenStack or oddStack based on their value
Time Complexity
O(n) where n is the number of elements in the stack
Space Complexity
O(1) for the stack operations, O(n) for the input array
Part c: Display all items in evenStack and then in oddStack
Explanation
The code defines a function to display items in a stack and then displays items in evenStack and oddStack.
Step-by-step Instruction
▪
Display items in evenStack and oddStack: Use the display function to print items in evenStack and oddStack
Time Complexity
O(n) where n is the number of elements in the stack
Space Complexity
O(1) for the stack operations, O(n) for the input array
Part d: Output after executing codes in a), b), and c)
Explanation
After executing the codes, the evenStack will contain the even numbers from the input array, and the oddStack will contain the odd numbers.
Step-by-step Instruction
▪
Determine the output: The evenStack will display even numbers, and the oddStack will display odd numbers
Time Complexity
O(n) for each part where n is the number of elements in the stack
Space Complexity
O(1) for the stack operations, O(n) for the input array
The output will be:
Even Stack: 20 18 16 14 12
Feel free to ask if you have any more questions!