new_lesson11_2

#include <iostream>
using namespace std;




void show(int** arr) {

    int sz1 = _msize(arr) / sizeof(arr[0]);
    int sz2;

    for (int k = 0; k < sz1; k++) {
        sz2 = _msize(arr[k]) / sizeof(arr[k][0]);
        for (int n = 0; n < sz2; n++)
            cout << arr[k][n] << " ";
        cout << endl;
    }
    cout << endl;
}


void generate(int** arr) {
    int sz1 = _msize(arr) / sizeof(arr[0]);
    int sz2;

    for (int k = 0; k < sz1; k++) {
        sz2 = _msize(arr[k]) / sizeof(arr[k][0]);
        for (int n = 0; n < sz2; n++)
            arr[k][n] = (n + 1) * (k + 1);
    }
}

void sum(int** arr1, int** arr2, int** &arr3) {
    int sz1 = _msize(arr1) / sizeof(arr1[0]);
    int sz2;

    for (int k = 0; k < sz1; k++) {
        sz2 = _msize(arr1[k]) / sizeof(arr1[k][0]);
        for (int n = 0; n < sz2; n++)
            arr3[k][n] = arr1[k][n] + arr2[k][n];
    }
}

void create(int** &arr, int sz1, int sz2) {
    arr = new int* [sz1];
    for (int k = 0; k < sz1; ++k)
        arr[k] = new int[sz2];
}

int**& create(int sz1, int sz2) {
    int** arr = new int* [sz1];
    for (int k = 0; k < sz1; ++k)
        arr[k] = new int[sz2];
    return arr;
}

void dell_arr(int**& arr) {
    int sz1 = _msize(arr) / sizeof(arr[0]);
    for (int k = 0; k < sz1; ++k)
        delete[] arr[k];
    delete[] arr;
}



void test1() {
    int sz1 = 7;
    int sz2 = 3;
    int** arr = create(sz1, sz2);
    generate(arr);
    show(arr);
    dell_arr(arr);
}

void test2() {
    int sz1 = 7;
    int** arr = new int* [sz1];
    for (int k = 0; k < sz1; ++k)
        arr[k] = new int[k+1];
    generate(arr);
    show(arr);
    dell_arr(arr);
}

void test3() {
    int** arr1 = create(2,2);
    int** arr2 = create(2,2);
    int** arr3 = create(2,2);

    arr1[0][0] = 1; arr1[0][1] = 54;
    arr1[1][0] = 34; arr1[1][1] = 23;
    generate(arr2);

    sum(arr1, arr2, arr3);
    show(arr3);

    dell_arr(arr1);
    dell_arr(arr2);
    dell_arr(arr3);
}

void main() {
    test3();
}