baphim
33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
"""
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Write a Python program that can take a positive integer greater than 2 as input and write out the number of times
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one must repeatedly divide this number by 2 before getting a value less than 2.
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"""
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def count_steps():
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# input validation: try that input is an integer
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while True:
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try:
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current_value = int(input("Please enter an integer greater than 2: "))
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# also try that input is above 2, if not print error message
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if current_value <= 2:
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print("Invalid input: Please enter only integers greater than 2.")
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# if input is correct, break the while loop
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else:
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break
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# Handle ValueError and print error message
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except ValueError:
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print("Invalid input: Please only enter integers.")
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# set 'step_count' variable to count divisions
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step_count = 0
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# iterate divisions over 'current_value' until it is lower than 2
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while current_value >= 2:
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current_value = current_value / 2
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# add division step to 'step_count'
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step_count += 1
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print(step_count)
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count_steps()
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