Yes, the minimum is the following:
int main (void) { return 0; }
The main function. Every program must have a main function and it must be declared static.
A main function must be present in every C program.
The main function in C is user-defined. Built-in functions are simply those that do not require a library to be included, but every program must provide a user-defined point of entry; it cannot be built-in. Indeed, most functions in C are user-defined; the built-in functions are mostly operators rather than functions although most do behave like functions. The standard library functions are not built-in either; they all require the inclusion of the appropriate standard library header.
Every C plus plus program that is a main program must have the function 'main'.
Every C program must have a function, named main(), which is where the program starts execution. If there is no function main(), the computer does not know where to start running the program. The function main() must also do something; if it is just empty, some smarter compilers will note that there is nothing for the program to do, and will give this sort of error message to indicate that you forgot to tell the program what to do.
The main function. Every program must have a main function and it must be declared static.
Every C program has a main() function.
A main function must be present in every C program.
You can write them any way you like, as long as the basic definition of "function" is maintained. Basically, this means that the function must be defined uniquely defined for every input.
The main function in C is user-defined. Built-in functions are simply those that do not require a library to be included, but every program must provide a user-defined point of entry; it cannot be built-in. Indeed, most functions in C are user-defined; the built-in functions are mostly operators rather than functions although most do behave like functions. The standard library functions are not built-in either; they all require the inclusion of the appropriate standard library header.
Every C plus plus program that is a main program must have the function 'main'.
That's how "function" is defined. If you have two points with the same x-coordinates, you have a "relation", but not a "function". A function is a special type of relation. The idea of a function is that, for every value of the independent variable (for example, "x"), the dependent variable (for example, "y") is uniquely defined. In other words, you can consider a function as a rule that assigns a y-value uniquely to every x-value.
Every C program must have a function, named main(), which is where the program starts execution. If there is no function main(), the computer does not know where to start running the program. The function main() must also do something; if it is just empty, some smarter compilers will note that there is nothing for the program to do, and will give this sort of error message to indicate that you forgot to tell the program what to do.
The result depends on how the function f() is defined. Simply copy the function definition, replacing every "x" (assuming the function is defined in terms of "x") by "x+5".
It can. The sine function is defined for all numbers--negative, 0, and positive. The function is periodic and repeats every 360 degrees.
I don't think its possible. Every C++ program must at least have the main function.
By definition. If one input has more than one outputs then it is not a function.