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

Set .difference() Operation

  • sjayanitha2006
     + 0 comments
    # Read input
n = int(raw_input())
english = set(map(int, raw_input().split()))

m = int(raw_input())
french = set(map(int, raw_input().split()))

# Students subscribed to only English
only_english = english.difference(french)

# Output the count
print(len(only_english))