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Wrong answer #170

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nefton opened this issue Feb 5, 2020 · 0 comments
Open

Wrong answer #170

nefton opened this issue Feb 5, 2020 · 0 comments

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@nefton
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nefton commented Feb 5, 2020

http://dragon-book.jcf94.com/book/ch02/2.2/2.2.html
question 2.2.4 unit 4 and 5
"Arithmetic expressions of integers and identifiers with the four binary operators +, -, *, /."
there are no " ( ) " in the answer.
so "factor -> id | num | (expr)" should be "factor -> id | num"
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