main(1).cpp is a digital artifact—a snapshot of a moment in a programmer's workflow. It represents the starting point of logic and the functional "heart" of an application, wrapped in the accidental naming conventions of a modern operating system. For a developer, seeing that (1) is often the first cue to clean up the workspace and move toward a more organized coding environment.
To turn main(1).cpp into a running program, it must pass through a compiler (like GCC or Clang). The compiler doesn’t care about the "(1)" in the name, as long as the syntax inside the file is correct. A developer would compile it using a command like: g++ main(1).cpp -o my_program main(1).cpp
While main(1).cpp will compile and run, it is considered poor practice to keep such names in a professional project. Meaningful file naming helps with: main(1)