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

Gemstones

  • dnastacio
     + 0 comments

    Python, using reduce

    import reduce from functools

def gemstones(arr):
    sarr = list(map(set, arr))
    return len(reduce(lambda c, f: c.intersection(f), sarr))