PREPRINT In Proc Workshop on Algorithms and Data Structures, pages 60 71 Springer Verlag, 1993 ����������� ��� � ������������� � ���� ���� � ����! ��" #%$''''&)(�#%&+*,(�$ / 102&)3 465/798� =�5/?@;BAD[.]
PREPRINT In Proc Workshop on Algorithms and Data Structures, pages 60-71 Springer Verlag, 1993 !" %# $'&)(#%&+*,($.-/-102&)3 465/798:=5/?@;BADCFEGAD=7IH2;>5':KJML.NO5.?2L.5QPIRSHI?ITVUK?INOWX5/:>Y=~ 8t ;>NOT2AD5.?S{OYP_xIa 5XADd]:>|X~ 8?IN i8";>NwAD? ADC d]~ tt T2~ T2%NOYL'xl;5.5Q~ M~ t8D{O=~ t AD?9Y ;KT25'AD:>72YYAQ=8;>NOL%CƠ:18D=5'hBAD:>CƠAD:v98{w8D?IPnL/5i7ITạ8D|D;Yu5/5.b Y.M~%d]\aQ? P @~ vIa NO~?IDt8b@:5/A:iC,P WXB5/:a NOADO?9aD8a 9:>NOa 5.2YP9HIa Y5/:>=NO?INOY ;>NOLYY.~6\? aQaD~ 2~ NO5.WX5':>|Q5.{Z;F8DP,?IdT a ~ ~ M5.PnNO?Ia |DAQ{w@T+~ ~f^GNO?98:L'xPf;a 5.5.@Y a @8DaD{ZPnC¥cèa vIQ8DbQ{w8Dd@?2~ L.5iTvINO?98":NO8AQ{Z?S;>5/~ :>?98";>NwWQ5;>AuvI8D{w8D?2L.5iTl;5/5.Y.~z\? a ]~ ³Q5/~ :>Y