# inputing multiple value(variable)

So I was thinking that instead of inputting
1
2
3
with enter at the end of each input.
which use{ scanf("%i",&a) in a loop}
I wish to to input somthing like
1 2 3
which uses { scanf("%i %i %i",&a,&b,&c)}
the problem is if I declare sth like

int num;
scanf("%i",num);
info[num];
using loop I can input num times until the array is full
so the inputs look like
1
2
3
...
num-1
num

but if I want my inputs to be

1 2 3 4 5 6 .... num-1 num

I can't just scanf("%i %i ... num times",&info[1],&info[2]...&info[num]);
any suggestion on what can i do?

It can be done, and in fact, will be done as part of some of the last psets. But since this is a teaching environment, and one of the things this class teaches is how to find out how research questions like these, I'll point you in the right direction. ;-)

Like all programming problems, it's best broken down into parts. In this case, you want to:

1. Read in a string containing a bunch of values on one line,
2. extract each number, still in string form, from the string,
3. convert each individual string to a number form,
4. store the numbers.

The following items will help you with each step. The first problem is that scanf doesn't normally read in spaces. http://www.c4learn.com/c-programming/c-reading-string-with-spaces-scanf/ will explain how to read in a string with spaces.

For extracting the numbers in string form, functions like `strtok()` and it's cousins will be useful.

Of course, by now you should be familiar with atoi() for the conversion from string to int.

Storing the numbers is a matter of programming as needed for your program.

That's all the pieces and parts. If not, Google can provide a wealth of information! You should be able to put the puzzle together now. ;-)

If this answers your question, please click on the check mark to accept. Let's keep up on forum maintenance. ;-)