lesson_321_18

#include <iostream>

using namespace std;

void tast_battleship() {
    for (int k = 1; k <= 8; k++) {
        for (char ch = 'A'; ch <= 'H'; ch++) {
            cout << ch << k << " ";
        }
        cout << endl;
    }
}

void task_color() {
    cout << "\033[44;33mHello\033[0m" << endl;

    for (int mode = 0; mode < 110; mode++) {
        cout << "\033[" << mode << "m "
            << mode << " \033[0m";
        if ((mode + 1) % 20 == 0) {
            cout << endl;
        }
    }
}

void vect_like_matr() {
    const int n1 = 7;
    const int n2 = 4;
    //int matr[n1][n2];
    int vect[n1 * n2];
    for (int k = 0; k < n1; k++) {
        for (int n = 0; n < n2; n++) {
            vect[k * n2 + n] = k * n2 + n;
            //matr[k][n] = k * n;
        }
    }

    for (int k = 0; k < n1; k++) {
        for (int n = 0; n < n2; n++) {
            cout.width(2);
            cout << vect[k * n2 + n] << " ";
        }
        cout << endl;
    }


}

void test_memory() {
    int v[]{ 1,2,3,4,5,6,7,8,9 };
    int m[][3]{{1,2,3},{4,5,6},{7,8,9}};
    int k = 250;

    cout << &k << endl;

    cout << v[0] << " "
         << v << " "
         << &(v[0]) << endl;

    cout << m[0][0] << " "
        << m[0] << " "
        << m << " "
        << &(m[0]) << " "
        << &(m[0][0]) << endl;
}

int get_rand(int a, int b) {
    return rand() % (b - a + 1) + a;
}

const int width = 5;
const int heigh = 6;

void gen_arr2d(int size1, int size2, int arr[][width]) {
    for (int k = 0; k < size1; k++)
        for (int n = 0; n < size2; n++)
            arr[k][n] = get_rand(-10, 10);
}

void show_arr2d(int size1, int size2, int arr[][width]) {

    for (int k = 0; k < size1; k++) {
        for (int n = 0; n < size2; n++) {
            cout.width(3);
            cout << arr[k][n] << " ";
        }
        cout << endl;
    }
}

void calc_arr2(int size1, int size2, int arr[][width]) {
    for (int k = 0; k < size1; k++)
        arr[k][size2 - 1] = 0;

    for (int n = 0; n < size2 - 1; n++)
        arr[size1 - 1][n] = 0;

    for (int k = 0; k < size1 - 1; k++) {
        for (int n = 0; n < size2 - 1; n++) {
            arr[k][size2 - 1] += arr[k][n];
            arr[size1 - 1][n] += arr[k][n];
            arr[size1 - 1][size2 - 1] += arr[k][n];
        }
    }
}


void rowcol_sum() {
    int matr[heigh][width];
    gen_arr2d(heigh-1, width-1, matr);
    calc_arr2(heigh, width, matr);
    show_arr2d(heigh, width, matr);
}

int main() {
    srand(time(NULL));
    //tast_battleship();
    //task_color();
    //test_memory();
    //vect_like_matr();

    rowcol_sum();

    return 0;
}