ENG  RUSTimus Online Judge
Online Judge
Problems
Authors
Online contests
About Online Judge
Frequently asked questions
Site news
Webboard
Links
Problem set
Submit solution
Judge status
Guide
Register
Update your info
Authors ranklist
Current contest
Scheduled contests
Past contests
Rules
back to board

Discussion of Problem 1670. Asterisk

What do you mean by "..." in formal definition?
Posted by Ilya Porublyov 10 Jan 2009 13:08
What do you mean by "..." in formal definition? Is it the same as
<expression> ::= <sequence>{*<sequence>}
and
<sequence> ::= (<sequence element>{,<sequence element>}
or smth else?