DALGLI0/zad2/Main.java

import java.util.Arrays;


public class Main {

    public static void main(String[] args) {
        if (args.length == 0) {
            System.out.println("Proszę podać parametry np. java Main \"6\" \"[1,2,3,0,1]\" \"[2,4,0,0,2]\"");
            return;
        }
        int modulo = Integer.parseInt(args[0]);
        int[] polyF = stringToArray(args[1]);
        int[] polyG = stringToArray(args[2]);
        String multiple = Arrays.toString(PolynomialOperations.multiple(polyF, polyG, modulo));
        int[] divisionArray = PolynomialOperations.divide(polyF, polyG, modulo);
        String division;
        if(divisionArray == null)
            division = "DivisionError";
        else if (divisionArray.length == 0)
            division = "[0]";
        else
            division = Arrays.toString(divisionArray);
        String nwd = Arrays.toString(PolynomialOperations.NWD(polyF, polyG, modulo));
        if (nwd.equals("null"))
            nwd = "DivisionError";

        String outputString = "[" + multiple + ", " + division + ", " + nwd + "]";
        System.out.println(outputString);
    }

    private static int[] stringToArray(String str) {
        return Arrays.stream(str.substring(1, str.length() - 1).split(","))
                .map(String::trim).mapToInt(Integer::parseInt).toArray();
    }
}