Question

Using the following grammar: Expr -> Expr + Term I Expr * Term I Term Term->...

  1. Using the following grammar:

Expr -> Expr + Term I Expr * Term I Term

Term-> 0 I ... I 9 I (Expr)

Draw a parse tree for each of the following:

(a) 5 + 4 * 3

(b) 5 * 4 + 3

  1. using the following grammar:

Expr -> Term+ Expr I Term * Expr I Term

Term -> 0 I …. 9 I (Expr)

Draw a parse tree for each of the following:

(a) 5 + 4 * 3

(b) 5 * 4 + 3

  1. Using the following grammar:

Expr -> Expr + Term I Term

Term-> Term* Factor I Factor

Factor-> 0 I ... I 9 I (Expr)

draw a parse tree for each of the following:

(a) 5 + 4 * 3

(b) 5 * 4 + 3

  1. Explain the main differences between grammars in problems 1, 2 and 3.
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Answer #1

i am done perfectly and I got perfect answers

Main difference between 3 is all are same output,

Draw the order is different

Some are needed + operation first some are needed * operation first

Some are needed so many steps like factor...etc

Some are needed right most derivation

Some are needed left most derivation...etc

Observe the diagrams you can understand perfectly

Anything doubtful or not understand just comment I will touch with you

Please thumbs-up for my effort

Thank you and all the best

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