comefrom: <qiyuangong>141_Linked_List_Cycle_1.py
code: def hasCycle( head):
      if head is None:
          return False
      count = 0
      max = 100000
      pos = head
      while pos is not None:
          count += 1
          pos = pos.next
          if count > max:
              return True
      return False
masked: def sample_funcname ( var_0 ) :
      if var_0 is None :
          return False
      var_4 = 0
      var_6 = 100000
      var_7 = var_0
      while var_7 is not None :
          var_4 += 1
          var_7 = var_7.next
          if var_4 > var_6 :
              return True
      return False
  