Aspire Faculty ID #17450 · Topic: UGC NET Computer Science June 2024 (Paper II) · Just now
UGC NET Computer Science June 2024 (Paper II)

The following code:

stmt → if expr then stmt else stmt
      | if expr then stmt

suffers from:

Solution

This grammar produces the dangling-else problem.

In such cases the else can be associated with more than one if, producing more than one parse tree.


Thus the grammar is ambiguous.

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