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  1. #!/usr/bin/env python3 
  2. import sys
  3. from itertools import islice 
  4.  
  5. input_file = map(str.strip, sys.stdin)
  6. read_lines = lambda: islice(input_file, int(next(input_file)))
  7. whitelist = set(read_lines())
  8. for whitelisted_line in filter(whitelist.__contains__, read_lines()):
  9.     print(whitelisted_line)
Success #stdin #stdout 0.04s 9544KB
comments (?)
stdin
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3
h12
h21
h11
4
h8685665
h12
h745646
h21
stdout
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h12
h21
https://ideone.com/djGCzS
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
secret

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