Question

I am trying to work on a program where the user enters a random number and the program enters a list from 0 to 9.

For example, say that the user enters the number 12 then the screen should look like this:

0123456789012

Where ‘2’ at the end indicates the 12th number. I’ve tried this but it gives me an infinite loop and I don’t know how to tell it to stop:

for(i = 0; i < cells; i++) {
i = i%10;
printf("%d", i);
}

The cells here is the number that the user enters.

Answer 1

The problem is that you are changing i in the loop. You must iterate as many times as the input. You’re almost there, but you loop forever because you are modifying i in such a way that it will never be larger than or equal to cells for cells > 10.

Try this:

for( int i = 0; i < cells; ++i ) {
    printf( "%d", i % 10 );
}

Also…

0123456789012

Where ‘2’ at the end indicates the 12th number.

The second 2 is the 13th number, not the 12th 🙂