Code

#include <iostream>
#include<ctime>
#include<iomanip>
using namespace std;
void Fillingmatrix(int** arr, int rows, int cols)
{
    srand(time(NULL));
    arr = new int* [rows];
    for (int d = 0; d < rows; d++)
    {
        arr[rows] = new int[cols];
    }
    for (int k = 0; k < rows; k++)
        for (int p = 0; p < cols; p++)
        {
            arr[rows][cols] = rand() % 20;
        }
}
void maintask(int** arr, int rows, int cols)
{
    Fillingmatrix(arr, rows, cols);
    int max = arr[0][0];
    int rowsindex = 0;
    int colsindex = 0;
    for (int i = 0; i < rows; i++)
        for (int j = 0; j < cols; j++)
        {
            if (arr[i][j] > max)
            {
                max = arr[i][j];
                rowsindex = i;
                colsindex = j;
            }
        }
    cout << "The biggest element in " << arr << "array is " << max << endl;
    for (int i = 0; i < rows; i++)
        for (int j = 0; j < cols; j++)
        {
            if (i = rowsindex, j = colsindex)
            {
                arr[i][j] = 1;
            }
        }
}
void matrixcout(int** arr, int rows, int cols)
{
    maintask(arr, rows, cols);
    for (int k = 0; k < rows; k++)
        for (int u = 0; u < cols; u++)
        {
            cout << setw(rows) << arr[k][u];
        }
}
int main()
{
    int rows = 5;
    int cols = 5;
    int** A = new int* [rows];
    int** Y = new int* [rows];











    Fillingmatrix(A, 6, 3);
    Fillingmatrix(Y, 4, 5);
    maintask(A, 6, 3);
    maintask(Y, 4, 5);
    matrixcout(A, 6, 3);
    matrixcout(Y, 4, 5);
    system("pause");
    return 0;
}