The code looks a bit strange; it seems to be missing a return value. Refer to the following AI response 
This is a compilation error caused by a syntax issue in the code:
In C, the main function, as the program entry point, must have a return value (typically of type int) according to conventions. However, the main function in this code lacks a return statement (although some compilers handle this implicitly, strict compilation environments will trigger a generation error).
You can fix it by adding return 0; at the end of the main function, as shown below:
#include <stdio.h>
int main()
{
printf("ss");
return 0; // Add return statement to complete the program structure
}
After adding it, recompile the code to resolve the generation error.