Definition: Counter declaration is a programming concept in which a variable is declared but not assigned any value. The purpose of this declaration is to provide a mechanism for accessing or modifying values within a program, while allowing for easy reuse and modification of variables without having to create them anew. Counter declarations are often used in situations where an object needs to be accessed multiple times (e.g., when the same variable is used across several different parts of the code), but only once.
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