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C++ LANGUAGE
VARIABLES CAN BE DECLARED
A scope is a region of the program and broadly speaking there are
three places, where variables can be declared:
• Inside a function or a block which is called local variables,
• In the definition of function parameters which is called formal parameters.
• Outside of all functions which is called global variables.
We will learn what a function is, and it's parameter in subsequent chapters.
Here let us explain what local and global variables are.
