Identifiers are names of things that appear in programs, such as variables, constants, and functions which must obey C++'s rules for identifiers.
Identifiers are been created to give a unique name to an entity , this is very essential when carrying out the execution of the program.
The common type of identifiers is An ordinary identifier which serves as the uppercase letter followed by zero or more characters, hence Identifiers are names of things that appear in programs, such as variables, constants, and functions which must obey C++'s rules for identifiers.
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