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We have the following grammar with the start symbol : -> + | -> | / < factor> | -> 01213141516171819 1. Show a leftmost derivation for the expression "6*4/2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 +9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-" right-associative. Show the parse tree for "6 * 4 / 2 - 0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).

We have the following grammar with the start symbol : -> + | -> | / < factor> | -> 01213141516171819 1. Show a leftmost derivation for the expression "6*4/2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 +9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-" right-associative. Show the parse tree for "6 * 4 / 2 - 0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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asap please number 4 and 5 

We have the following grammar with the start symbol <expr>: <expr> <factor> + <factor> | <factor> - <factor> <expr> <factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit> <digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative. Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
Transcribed Image Text:We have the following grammar with the start symbol <expr>: <expr> <factor> + <factor> | <factor> - <factor> <expr> <factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit> <digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative. Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
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number 1,2,3 please 

 

We have the following grammar with the start symbol <expr>: <expr> <factor> + <factor> | <factor> - <factor> <expr> <factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit> <digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative. Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
Transcribed Image Text:We have the following grammar with the start symbol <expr>: <expr> <factor> + <factor> | <factor> - <factor> <expr> <factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit> <digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative. Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
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