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  1. Prepare
  2. Python
  3. Sets
  4. No Idea!
  5. Discussions

No Idea!

  • quanle_ac
     + 0 comments

    n, m = input().split()

    (sc_ar, A, B) = [set (map(int,input().split())) for _ in range (3)]

    print (sum([(i in A) - (i in B) for i in sc_ar]))