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7. [20 points] Using the grammar below, draw the following: (8 * 3 * (4+5)) -parse tree . (4+5) + 16+(3 * 9) - abstract
7. [20 points] Using the grammar below, draw the following: (8 * 3 * (4+5)) -parse tree . (4+5) + 16+(3 * 9) - abstract syntax tree expr term { + term } term factor { * factor } factor - ( expr) | number number - digit { digit } digit 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 Figure 6.18 EBNF rules for simple integer arithmetic expressions
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