What is the expected outcome of the following C program involving a variable declared with a leading digit?

In C programming, variable names must adhere to specific naming conventions. One of these conventions is that variable identifiers cannot begin with a digit. If a variable is declared with a leading numeric digit, the C compiler fails to recognize it as a valid identifier.

As a result, if the program includes a variable that is improperly declared with a leading digit, it will not compile successfully. The compiler will raise an error during the compilation phase instead of executing the program. Therefore, the expected outcome of this C program is that it will not produce any output because the code would not compile due to the illegal variable name.

This concept highlights the importance of following the syntax rules of the C language when naming variables to ensure that programs compile and run as expected. Proper naming, starting with letters or underscores, is essential for declaring variables effectively.