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  1. Prepare
  2. Python
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  4. The Captain's Room
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The Captain's Room

  • luca_h94
     + 0 comments

    I should have used counter, but works too with defaultdict (used as counter)

    from collections import defaultdict

room_dict = defaultdict(list)

input()
room_numbers = input().split()

for room in room_numbers:
    room_dict[room].append("1")
    
for room, tourists in room_dict.items():
    if len(tourists) == 1:
        print(room)