Thread: N00b @ C: Code is failing at line 12 which is a basic scanf

What's up with your title? That's not how you should properly ask a question. Also, you didn't specify the error in the code like you should have.

You need to look up processor directives in C, you can't just separate them with a semicolon and call it done. I'll leave it up to look it up in this site's tutorials.

You really like abusing the semicolon terminator and place it in spots that it shouldn't have gone in. You need to look up exactly what you use the semicolon in C for, and what you use the comma for.

your indentation does not match real flow of the code, your defines are wrong
This is how defines should look

Code:

#define YARDS_PER_HAT 220
#define YARDS_PER_SWEATER 460

This is how your if/else is really working

Code:

    if (num_balls < 0)
       printf("You are a liar! That's impossible. Restart the program and tell the truth.\n");
    else
        printf("How many yards are in each of your balls of yarn?\n");

    scanf("%d" , &yards_per_ball);