) The scanf function reads the data from stdin and stores the values into the respective variables.

So Im going to show you how to implement scanf in C in this tutorial. posted in C/C Tutorials: A lot of new C programmers have trouble with scanf. Return Value On success, the function returns the number of items of the argument list successfully filled. These arguments are expected to be pointers: to store the result of a scanf operation on a regular variable, its name should be preceded by the reference operator (&) (see example).