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  1. Prepare
  2. Python
  3. Sets
  4. The Captain's Room
  5. Discussions

The Captain's Room

  • trones_de
     + 0 comments

    not sure what is trrying to be taught about sets here... with counter or dict/hashmap it's simple:

    lines = sys.stdin.read().splitlines()

k = lines[0]
rm_number_counts = {}
for i in lines[1].split(' '):
    if i not in rm_number_counts:
        rm_number_counts[i] = 1
    else:
        rm_number_counts[i] += 1

for k, v in rm_number_counts.items():
    # print(k , v)
    if v == 1:
        print(k)