Question: A sequence of stack operations is performed on a stack whose size never exceeds k. After every k operations, a copy of the entire stack

A sequence of stack operations is performed on a stack whose size never exceeds k. After every k operations, a copy of the entire stack is made for backup purposes. Show that the cost of n stack operations, including copying the stack, is O (n) by assigning suitable amortized costs to the various stack operations.

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