C Programming
Which of the following comments about the ++ operator are correct?

It cannot be applied to an expression
All of these
It is a unary operator
It associates from the right
The operand can come before or after the operator

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C Programming
What is the difference between a declaration and a definition of a variable?

A definition occurs once, but a declaration may occur many times.
A declaration occurs once, but a definition may occur many times.
There is no difference between them.
Both can occur multiple times, but a declaration must occur first.
Both can occur multiple times, but a definition must occur first.

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