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

Set .add()

  • svineeta154
     + 0 comments
    1. N=int(input())
    2. l=set()
    3. for i in range(N):
    4. country=input()
    5. l.add(country)
    6. print(len(l))