Question: 3. How DAG (directed acyclic graph) is different from syntax tree? Draw the DAG for given expression (a+bc)+d+(a+bc)d+e draw the DAG. 4. Define activation records.

3. How DAG (directed acyclic graph) is different from syntax tree?

3. How DAG (directed acyclic graph) is different from syntax tree? Draw the DAG for given expression (a+bc)+d+(a+bc)d+e draw the DAG. 4. Define activation records. Explain how it is related with runtime storage allocation. 5. Generate code for the following C program using any code generation algorithm. main() \{ int i,a,b,c,d,e; i=a+b(c+d)e \}

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