Computers and Technology, 03.03.2020 03:59 sanchezr7187
Write a BNF grammar that describes the structure of a nonterminal called . Assume that contains an optional + sign followed by exactly 2 decimal digits, the first of which cannot be a 0. Thus 23, +91, and +40 are legal, but 9, +01, and 123 are not.
Using this grammar, show a parse tree for the value +90.
Answers: 3
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Write a BNF grammar that describes the structure of a nonterminal called . Assume that contains an o...
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