comefrom: <doocs>1227.Airplane Seat Assignment Probability_1.py
code: def nthPersonGetsNthSeat( n: int) -> float:
      return 1 if n == 1 else 0.5
masked: def sample_funcname ( var_0 : int ) -> float :
      return 1 if var_0 == 1 else 0.5
  