Aspire Faculty ID #18895 · Topic: UGC NET Computer Science Nov 2021 (Paper II) · Just now
UGC NET Computer Science Nov 2021 (Paper II)

The reverse Polish notation of the following infix expression

$[A*\{B+C*(D+E)\}]/\{F*(G+H)\}$

is __________.

Solution

First convert $(D+E)$ into postfix:
$DE+$

Now,
$C*(D+E)=CDE+*$

Then,
$B+C*(D+E)=BCDE+*+$

Now,
$A*\{B+C*(D+E)\}=ABCDE+*+*$

Also,
$F*(G+H)=FGH+*$

Therefore complete postfix expression is:
$ABCDE+*+*FGH+*/$

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