MAIN()
- It is a function where all C++ programs start.
- This is the starting point of your program.
- All the time it is followed by curly brackets ({}) which contains a block of code. What is contained within these brackets is what the function does when it is executed.
int main() //initialises the “main” function which is present in every C++ program, and here Int stands for integer, which means its returns an integer number