#include <iostream>
#include <time.h>
#include <cstdlib>
using namespace std;

int** CreateArray(int n, int m);
void DeleteArray(int** array, int n);
int fRandomizeArray(int **array, int n, int m, int rand_min, int rand_max);
void fPrintArray(int **array, int n, int m);
void SumArray(int** array1, int **array2, int **array3, int n, int m);
void DifArray(int** array1, int **array2, int **array3, int n, int m);
int** Calculator(int** array1, int **array2, int **array3, int n, int m, char sign);

int main(){
    setlocale(LC_ALL, "Russian");
    srand((unsigned)time(NULL));
    int n, m;
    char sign;
    cout << "Количество строк: ";
    cin >> n;
    cout << "Количество столбцов: ";
    cin >> m;
    cout << "Действие (+/-): ";
    cin >> sign;
    cout << endl;
    int **array1 = CreateArray(n, m),
        **array2 = CreateArray(n, m),
        **array3 = CreateArray(n, m);
    fRandomizeArray(array1, n, m, -100, 100);
    fRandomizeArray(array2, n, m, -100, 100);
    fPrintArray(array1, n, m);
    fPrintArray(array2, n, m);
    Calculator(array1, array2, array3, n, m, sign);
    fPrintArray(array3, n, m);
}

int** CreateArray(int n, int m)
{
    int** arr = new int*[n];
    for (int i = 0; i<n; i++)
        arr[i] = new int[m];
    return arr;
}
void DeleteArray(int** array, int n)
{
    for (int i = 0; i < n; i++)
        delete[] array[i];
    delete[] array;
}
int fRandomizeArray(int **array, int n, int m, int rand_min, int rand_max)
{
    for (int i = 0; i<n; i++)
    for (int j = 0; j < m; j++)
        array[i][j] = rand_min + rand() % (rand_max - rand_min + 1);
    return **array;
}
void fPrintArray(int **array, int n, int m)
{
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
            cout << array[i][j] << '\t';
        cout << endl;
    }
    cout << endl;
}
void SumArray(int** array1, int **array2, int **array3, int n, int m)
{
    for (int i = 0; i<n; i++)
        for (int j = 0; j<m; j++)
            array3[i][j] = array1[i][j] + array2[i][j];
}
void DifArray(int** array1, int **array2, int **array3, int n, int m)
{
    for (int i = 0; i<n; i++)
        for (int j = 0; j<m; j++)
            array3[i][j] = array1[i][j] - array2[i][j];
}
int** Calculator(int** array1, int **array2, int **array3, int n, int m, char sign)
{
    switch (sign)
    {
        case '+':
            SumArray(array1, array2, array3, n, m);
            break;
        case'-':
            DifArray(array1, array2, array3, n, m);
    }
    return array3;
}