CD LAB QUIZ

• 27

• 29

• 26

• 24

• • It generates an ambiguous grammar

• • It causes recursive decent parser to loop forever

• Both a & b

• None of the Above

• 1

• 2

• 3

• 4

• 7

• 8

• 6

• 9

• 5

• 7

• 6

• 8

• {R}

• {w,y}

• {w}

• {w,$}

• A

• B

• C

• D

What is E1,E2, and E3?

• E1:S->aAbB

  E2: S->aAaB

  E3:B->Blank

• E1:S->aAbB

  E2:S->bAaB

  E3:B->S

• E1: S->Blank

  E2:S->bAaB

  E3: B->S

• n, E+n and E+nxn

• n, E+n and E x n

• n, E+n and E+Exn

• n, n+n, n+nxn

What is the First and Follow sets for E and A?

• First(E)={a}

  First (A)={+}

  Follow(E)={)}

  Follow (A)={$}

• First(E)={a,(}

  First (A)={+,*}

  Follow(E)={),$}

  Follow (A)={)}