The following conditional expression is written in the C language. It is false when variable a is assigned either 10 or 20 and true otherwise.
!(a = = 10 a = = 20)
Which of the following conditional expressions is equivalent?
a) a != 10 II b !=20
b) a<=1011b>=20
c) a< 101Ia> 20
d) a = = 10 && a = = 20
e) a != 10 && a != 20
f) !(a = = 10) && !(a = = 20)
e) a != 10 && a != 20
Approach: Remove the not operator (!)
Flip applicable relational operators (= becomes != in two places) Flip applicable logical operators (II becomes &&)
Computer Science & Information Technology
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