A def func_two (stack1, stack2): result = True num_ops = 5 # If the stacks are the same size, then we can do this comparison if stack1.get_size() == stack2.get_size(): # We create an array to hold the data from one stack, and an array to hold data from the other tmp_data = [] tmp_stack = Stack() num_ops += 5 # We could use an array for each one if we wished, but for simplicity in returning, we choose the stack # Iterate through stack2, storing all values in tmp_data while stack2.get_size() > 0: A A A tmp_data.append(stack2.pop()) num_ops += 5 # Iterate through stack1, searching tmp_data for each item num_ops += 3 while stack1.get_size() > 0: item stack1.pop() num_ops += 3 + len(tmp_data) | else: if item in tmp_data: tmp_stack.push(item) num_ops += 1 else: result = False stack1.push(item) num_ops += 2 break num_ops += 3 # Rebuild both stacks num_ops += 3 while tmp_stack.get_size() > 0: stack1.push(tmp_stack.pop()) num_ops += 5 num_ops += 3 for i in range (len (tmp_data) - 1, -1, -1): stack2.push(tmp_data[i]) num_ops += 3 result = False num_ops += 1 print("This call took %d operations" % num_ops) return result

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question

Can you please tell me the big O notation for this function?

H
A
F
A
A
A
F
A
def func_two (stack1, stack2):
result = True
A
num_ops = 5
# If the stacks are the same size, then we can do this comparison
if stack1.get_size() == stack2.get_size():
# We create an array to hold the data from one stack, and an array to hold data from the other
tmp_data = []
tmp_stack = Stack()
num_ops += 5
# We could use an array for each one if we wished, but for simplicity in returning, we choose the stack
# Iterate through stack2, storing all values in tmp_data
while stack2.get_size() > 0:
tmp_data.append(stack2.pop())
num_ops += 5
# Iterate through stack1, searching tmp_data for each item
num_ops += 3
while stack1.get_size() > 0:
else:
item = stack1.pop()
num_ops += 3 + len(tmp_data) |
if item in tmp_data:
tmp_stack.push(item)
num_ops += 1
else:
result = False
stack1.push(item)
num_ops += 2
break
num_ops += 3
# Rebuild both stacks
num_ops += 3
while tmp_stack.get_size() > 0:
stack1.push(tmp_stack.pop())
num_ops += 5
num_ops += 3
for i in range (len (tmp_data) - 1, -1, -1):
stack2.push(tmp_data[i])
num_ops += 3
result = False
num_ops += 1
print("This call took %d operations" % num_ops)
return result
Transcribed Image Text:H A F A A A F A def func_two (stack1, stack2): result = True A num_ops = 5 # If the stacks are the same size, then we can do this comparison if stack1.get_size() == stack2.get_size(): # We create an array to hold the data from one stack, and an array to hold data from the other tmp_data = [] tmp_stack = Stack() num_ops += 5 # We could use an array for each one if we wished, but for simplicity in returning, we choose the stack # Iterate through stack2, storing all values in tmp_data while stack2.get_size() > 0: tmp_data.append(stack2.pop()) num_ops += 5 # Iterate through stack1, searching tmp_data for each item num_ops += 3 while stack1.get_size() > 0: else: item = stack1.pop() num_ops += 3 + len(tmp_data) | if item in tmp_data: tmp_stack.push(item) num_ops += 1 else: result = False stack1.push(item) num_ops += 2 break num_ops += 3 # Rebuild both stacks num_ops += 3 while tmp_stack.get_size() > 0: stack1.push(tmp_stack.pop()) num_ops += 5 num_ops += 3 for i in range (len (tmp_data) - 1, -1, -1): stack2.push(tmp_data[i]) num_ops += 3 result = False num_ops += 1 print("This call took %d operations" % num_ops) return result
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