import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class Tablice {

    public int[][] zad1(int t1[], int t2[], int s) {
    int temp[][] = new int[t1.length][2];

    int j = 0;
    for (int i = 0; i < t1.length; i++) {
        if (i % 2 == 0 && (t1[i] + t2[i]) == s) {
        temp[j][0] = t1[i];
        temp[j][1] =t2[i];
        j++;
        }
    }

    int wynik[][] = new int[j][2];

    for (int i = 0; i < j; i++) {
        wynik[i][0] = temp[i][0];
        wynik[i][1] = temp[i][1];
    }

    return wynik;
    }
    public int[][] zad1listy(int t1[], int t2[], int s) {
    List<int[]> t3 = new ArrayList<int[]>();
    for(int i = 0; i < t1.length; i++){
        if(i % 2 == 0 && (t1[i] + t2[i]) == s){
        int[] temp = {t1[i], t2[i]};
        t3.add(temp);
        }
    }

    return t3.toArray(new int[t3.size()][2]);
    }

    public int[] zad2(int t1[], int t2[]){
    int t3[] = new int[t1.length];
    int k = 0;
    for(int i = 0; i < t1.length; i++){
        int temp = 0;
        for(int j = 2; j <= t1[i]; j++){
        if(t1[i] % j == 0)
            temp += j;
        }
        if(temp == t1[i] && t1[i] < t2[i]){
        t3[k] = t1[i];
        k++;
        }
    }

    int wynik[] = new int[k];
    for(int i = 0; i < k; i++){
        wynik[i] = t3[i];
    }
    return wynik;
    }


    public static void main(String[] args) {
    Tablice t = new Tablice();
    int t1[] = { 6, 2, 1, 12, 11 };
    int t2[] = { 14, 10, 19, 8, 12 };
    int s = 20;
    int wynik[][] = t.zad1(t1, t2, s);
    for(int i = 0; i < wynik.length; i++){
        System.out.println(Arrays.toString(wynik[i]));

    }
    wynik = t.zad1listy(t1, t2, s);
    for(int i = 0; i < wynik.length; i++){
        System.out.println(Arrays.toString(wynik[i]));

    }


    int tt1[] = {3, 12, 11, 13, 23};
    int tt2[] = {14, 10, 10, 16, 12};

    int wyn2[] = t.zad2(tt1, tt2);
    System.out.println(Arrays.toString(wyn2));

    }
}