import java.util.*;

public class MyClass {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        Random random = new Random();
        System.out.println("Input array length: ");
        int n = in.nextInt();
        System.out.println("Input x: ");
        int x = in.nextInt();
        Integer[] numArray = new Integer[n];
        for (int i=0; i < numArray.length; i++) {
            numArray[i] = new Integer(random.nextInt(10));
            System.out.print(Integer.toString(numArray[i]) + "\t");
        }
        int tempElement = 0;
        for (int i=0; i < numArray.length; i++) {
            if(numArray[i] == x) {
                tempElement = numArray[i];
                numArray[i] = numArray[n-1];
                numArray[n-1] = tempElement;
                break;
            }
        }
        System.out.println();
        for (int i=0; i < numArray.length; i++) {
            System.out.print(Integer.toString(numArray[i]) + "\t");
        }
    }
}


import java.util.*;

public class MyClass {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        Random random = new Random();
        System.out.println("Input array n: ");
        int n = in.nextInt();
        System.out.println("Input array m: ");
        int m = in.nextInt();
        int[][] numArray = new int[n][m];
        for (int i=0; i < n; i++) {
            for (int j=0; j < m; j++) {
                numArray[i][j] = random.nextInt(99);
                System.out.print(Integer.toString(numArray[i][j]) + "\t");
            }
            System.out.println();
        }
        for (int i=0; i < n; i++) {
            int maxElement=0;
            int maxElementIndex=0;
            for (int j=0; j < m; j++) {
                if (numArray[i][j]>maxElement) {
                    maxElement = numArray[i][j];
                    maxElementIndex = j;
                }
                int tempElement = numArray[i][0];
                numArray[i][0] = numArray[i][maxElementIndex];
                numArray[i][maxElementIndex] = tempElement;
            }
        }
        System.out.println();
        for (int i=0; i < n; i++) {
            for (int j=0; j < m; j++) {
                System.out.print(Integer.toString(numArray[i][j]) + "\t");
            }
            System.out.println();
        }
    }
}