In the context of a C++ program's structure, what is the significance of the return statement in the main function?

  • It has no significance in the main function
  • It indicates the start of the main function
  • It is optional in the main function
  • It specifies the value the program returns to the operating system
The return statement in the main function specifies the value the program returns to the operating system. A return value of 0 typically indicates a successful execution, while a non-zero value can indicate an error or abnormal termination. This allows other programs and scripts to check the exit status of the C++ program.
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