Question

In C language can the first letter of the identier be underscore?
a. True
b.False
Also explain
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Answer 1

Answer:

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Answer 2

Answer:

A valid identifier can have letters (both uppercase and lowercase letters), digits and underscores. The first letter of an identifier should be either a letter or an underscore. You cannot use keywords like int , while etc. There is no rule on how long an identifier can be.

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