I am really new programming in C. How can i do the same in C, maybe in a more simple way then the one a do in Java. Each line of the input have to Integers: X e Y separated by a space.

12 1
12 3
23 4
9 3

            InputStreamReader in = new InputStreamReader(System.in);
    BufferedReader buf = new BufferedReader(in);

    int  n;
    int k;

    double sol;
    String line =""; 
    line=buf.readLine();

    while( line != null && !line.equals("")){
        String data [] = line.split(" ");
        n = Integer.parseInt(data[0]);          
        k = Integer.parseInt(data[1]);
        calculus (n,k);
        line = buf.readLine();

}