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  1. Prepare
  2. Python
  3. Sets
  4. Set .add()
  5. Discussions

Set .add()

  • SVVBathini_w
     + 0 comments

    For Python3 Platform

    N = int(input())
country_stamps = set()

for i in range(N):
    country_stamps.add(input())

print(len(country_stamps))