Whatever the programmer wants it to be.
Every C program has a main() function.
Into the source program.
A main function must be present in every C program.
if you do not used main function in c program when errors are accrued
That's up to you, but the execution of the program begins with function main.
the main() function,the#include Directive, the variable definition. function prototype, program statements, the function definition,program comments and braces are the components of program in C++
In C and C++, as well as in many (all?) languages, a function can be called from more than one place in a program. That's the purpose of functions - to encapsulate pieces of code that are needed in more than one place in the program.
It is not possible. In C, any program must have at least one function to be able to compile and execute properly: the function main()
Every C plus plus program that is a main program must have the function 'main'.
C programs do not function without functions.
Functions are very important in C++, as you can't write the simplest program to print hello without using a function. Overall you can say that function are building blocks of a C++ program. Functions can also be defined by the programmer to reduce program size.
It is the first function that gets called when the program is executed.