Scope

Scope in C++ defines the visibility and lifetime of variables, functions, and other identifiers within a program. It dictates where these entities can be accessed and how long they persist in memory. C++ employs several types of scope, including global scope (accessible program-wide), local scope (confined to a function or block), namespace scope (organized within named groups), and class scope (specific to class members). Understanding scope is vital for preventing naming conflicts and managing the lifespan of objects, thus contributing to cleaner and more maintainable code.