Compiler Design 6th semester - BookSpar - C parse number from string

In this grammar, the string 9-5+2 has two possible parse trees as shown in the next slide. Consider the parse trees for string 9-5+2, expression like this has more than one parse tree. The two trees for 9-5+2 correspond to the two ways of parenthesizing the expression: (9-5)+2 and 9-(5+2). ................
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