23tree has
   data1, data2,
   numptrs,
   ptrL, ptrM, ptrR       // ptrM only used if numptrs is 3




23tree::remove(item) =
   if null
      return         // it wasn't in the tree

  
   else if leaf     // i.e. ptrL is null


   else if nptrs = 2
      if item < data1
    
      else if item = data1
      
      else

    
   else if nptrs = 3
      if item < data1
      
      else if item = data1
      
      else if item < data2
      
      else if item = data2
      
      else