comefrom: <doocs>2248.Intersection of Multiple Arrays_1.py
code: def intersection( nums: List[List[int]]) -> List[int]:
      cnt = [0] * 1001
      for num in nums:
          for v in num:
              cnt[v] += 1
      n = len(nums)
      return [i for i, v in enumerate(cnt) if v == n]
masked: def sample_funcname ( var_0 : List [ List [ int ] ] ) -> List [ int ] :
      var_5 = [ 0 ] * 1001
      for var_6 in var_0 :
          for var_7 in var_6 :
              var_5 [ var_7 ] += 1
      var_10 = len ( var_0 )
      return [ var_11 for var_11 , var_7 in enumerate ( var_5 ) if var_7 == var_10 ]
  