Thread: Help with scanf (I'm a beginner)

Hey guys, I'm having some troubles making a program my teacher asked me this week. The algorithm is fine to do, but the entries are screwing me up.

Well, I think it is kinda simple to solve it but still, I'm a beginner and don't know much yet.

First of all, the program will read 3 int values, one of then we will call N (The others aren't important for this doubt).

Then it will read N values, all in the same line.

For example:

First entry: x y 10
Second entry: a b c d e f g h j i

First entry: x y 3
Second entry: a b c

First entry: x y 7
Second entry: a b c d e f g

I don't know how to do that. Can't use switch (N) and case 1 <= x <= N, because N is a number between 1 and 20 and the code would be really long, and I don't think it should since my class are all beginner at programming.

Any suggestions? Thanks!

Are you actually going to be entering letters? Or are those just place-holders for integers?

I don't know how to do that. Can't use switch (N) and case 1 <= x <= N, because N is a number between 1 and 20 and the code would be really long, and I don't think it should since my class are all beginner at programming.

Assuming there are only integer inputs ... have you learned about anything yet that allows a section of code to repeat? Perhaps with criteria that, when met, will cause that code to stop repeating?

Originally Posted by Matticus

Are you actually going to be entering letters? Or are those just place-holders for integers?



Assuming there are only integer inputs ... have you learned about anything yet that allows a section of code to repeat? Perhaps with criteria that, when met, will cause that code to stop repeating?

1. Those are just place-holders for integers.

2. I've already learned about while/do while/for, but I don't know how can I use it here. I mean, if I only enter with one scanf inside a for structure, will it read all entries even if they are on the same line?

Why don't you try out a little sample program to see for yourself if it will or won't work?

And it's a "for()" loop - a structure is something else entirely (terminology is important).