comefrom: <doocs>0961.N-Repeated Element in Size 2N Array_1.py
code: def repeatedNTimes( nums: List[int]) -> int:
      s = set()
      for num in nums:
          if num in s:
              return num
          s.add(num)
masked: def sample_funcname ( var_0 : List [ int ] ) -> int :
      var_4 = set ( )
      for var_5 in var_0 :
          if var_5 in var_4 :
              return var_5
          var_4.add ( var_5 )
  