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Collections in Python Assignment

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Python
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STDIN
1 1 2 3 4
Expected STDOUT
[2, 3, 4]
Your STDOUT
[2, 3, 4]
STDIN
1 1 2 2 3 3
Expected STDOUT
[]
Your STDOUT
[]
STDIN
1 2 2 3
Expected STDOUT
[1, 3]
Your STDOUT
[1, 3]
STDIN
22 55
Expected STDOUT
[22, 55]
Your STDOUT
[22, 55]
STDIN
1 2 3 4 5
Expected STDOUT
[1, 2, 3, 4, 5]
Your STDOUT
[1, 2, 3, 4, 5]
STDIN
1 5 3 5 2
Expected STDOUT
[1, 3, 2]
Your STDOUT
[1, 3, 2]

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imgInstructor solution
Alec KretchJAN 16, 2021, 8:33:33 PM
Python

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imgCollections in Python Presentation (pages 3, 4, 7, 8)

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  • def remove_dups(a_list): counts = {} # Count how many times each value appears in a_list # Iterate a_list twice... # First time to count occurrences of each value for val in a_list: if val in counts: counts[val] += 1 else: counts[val] = 1 # Second time to build up our return list no_dups_list = [] for val in a_list: if counts[val] < 2: no_dups_list.append(val) return no_dups_listFigure A
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