public class Main {

    public static void main(String[] args) {
        int arg1 = 5;
        char arg2 = 'x';
        xoxo(arg1,arg2);

        System.out.println();
        System.out.println();

        char[][] tab2 = new char[10][10];
        for (int i = 0; i < tab2.length; i++) {
            for (int j = 0; j < tab2[i].length; j++) {
                tab2[i][j] = (char)((Math.random()*26)+97);
            }
        }
        display(tab2);
        System.out.println(check(tab2));

        System.out.println();
        System.out.println();

        for (int i = 0; i < tab2.length; i++) {
            for (int j = 0; j < tab2[i].length; j++) {
                tab2[i][j] = (char)((Math.random()*2));
            }
        }

        int[][] zad3c1 = new int[2][2];
        int[][] zad3c2 = new int[2][2];

        for (int i = 0; i < zad3c1.length; i++) {
            for (int j = 0; j < zad3c1[i].length; j++) {
                zad3c1[i][j] = (char)((Math.random()*2));
            }
        }

        for (int i = 0; i < zad3c2.length; i++) {
            for (int j = 0; j < zad3c2[i].length; j++) {
                zad3c2[i][j] = (char)((Math.random()*2));
            }
        }

        display(zad3c1);
        System.out.println("-------------");
        display(zad3c2);
        System.out.println(jestRowna(zad3c1,zad3c2));

        System.out.println();
        System.out.println();

        double[] zad4c1 = new double[10];
        double[] zad4c2 = new double[10];

        for (int i = 0; i < 10; i++) {
                zad4c1[i] = (float)((Math.random()*100));
                zad4c2[i] = (float)((Math.random()*100));
        }

        double suma=0;
        for(int i = 0; i < 10; i++){
            suma+=zad4c1[i] + zad4c2[i];
        }

        double srednia = suma/10;

        for (int i = 0; i < 10; i++) {
            if(zad4c1[i] < srednia && zad4c2[i] > srednia) System.out.println(zad4c1[i] + " " + zad4c2[i]);
        }




    }

    public static boolean jestRowna(int[][] tab, int[][] tab1){
        int sum=0;
        boolean czySpelnia=false;
        if(tab.length == tab1.length && tab[0].length == tab1[0].length){
            for (int i = 0; i < tab1.length ; i++) {
                for (int j = 0; j < tab1[i].length ; j++) {
                    if(tab1[i][j] == tab[i][j]){
                        sum++;
                    }
                }
            }
            if(sum == tab1.length*tab1[0].length) {
                czySpelnia=true;
            }
        } else czySpelnia = false;

        return czySpelnia;
    }

    public static boolean check(char[][] tab){
        boolean check = false;
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                if(i==0 && j==0){
                    for (int m = 0, p=1 ;m < 3; m++) {
                        if(tab[i][m] > tab[i][p]) break;
                        else check = true;
                        if(tab[m][i] > tab[p][i]) break;
                        else check = true;
                    }
                }
                if(i==tab.length-1 && j==0){
                    for (int m = 0, p=1 ;m < 3; m++) {
                        if(tab[i][m] > tab[i][p]) break;
                        else check = true;
                    }
                }
                if(i==0 && j==tab[i].length){
                    for (int m = 0, p=1 ;m < 3; m++) {
                        if(tab[i][m] > tab[i][p]) break;
                        else check = true;
                    }
                }
            }
        }
        return check;
    }

    public static void xoxo(int arg1, char arg2){
        char[][] tab = new char[arg1][arg1];
        char xoxo1= 'x';
        char xoxo2= 'o';
        if(arg2 == 'x'){
         xoxo1 = 'x';
         xoxo2 = 'o';
        }
        else {
            xoxo1 = 'o';
            xoxo2 = 'x';
        }
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                if(i%2==0 && j%2==0) {
                    tab[i][j] = xoxo1;
                }
                else if(i%2!=0 && j%2!=0) {
                    tab[i][j] = xoxo1;
                } else
                    tab[i][j] = xoxo2;
            }
        }

        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                System.out.print(tab[i][j] + " ");
            }
            System.out.println();
        }
    }

    public static void display(char[][] tab){
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                System.out.print(tab[i][j] + " ");
            }
            System.out.println();
        }
    }

    public static void display(int[][] tab){
        for (int i = 0; i < tab.length; i++) {
            for (int j = 0; j < tab[i].length; j++) {
                System.out.print(tab[i][j] + " ");
            }
            System.out.println();
        }
    }
}