GO Classes DPP | COMPILER | EXPRESSION TREE

Answer 1

The Prefix expression corresponds to the Infix expression

$(((A / B) \times C)+(D-E))$.

Evaluating this as $((12 / 4) \times 2)+ (10-5)$ yields $(3 \times 2)+5=11$.

Answer 2

D

Answer 3

11

Answer 4

for prefix expression to postfis , we will use bottom up parsers

we means  RMD,
 +∗/ABC−DE

step1:+∗/ABC−D5

step 2:+∗/ABC−105

step 3:+∗/ABC(10-5)

step 4:+∗/AB2(10-5)

step 5:+∗/A42(10-5)

step 6:+∗/1242(10-5)

step 7:+∗(12/4)2(10-5)

step 8:+((12/4)*2)(10-5)

step 9:((12/4)*2)+(10-5)
we evaluate it : 6+5=11
option D