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  1. Prepare
  2. Algorithms
  3. Strings
  4. Gemstones
  5. Discussions

Gemstones

  • AbhishekVermaIIT
     + 29 comments

    One liner in python :

    print(len(set.intersection(*[set(input()) for _ in range(int(input()))])))

    Elaborated version :

    rocks = [set(input()) for _ in range(int(input()))]
gems = set.intersection(*rocks)
print(len(gems))


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