311_1202

#include <iostream>

using namespace std;

void task0() {
    const int x1 = 1;
    const int x2 = 2;
    const int x3 = 3;
    int x;

    cout << "Enter x: "; cin >> x;

    switch (x) {
    case x1: cout << "Moning\n"; break;
    case x2: cout << "Afternoon\n"; break;
    case x3: cout << "Night\n"; break;
    default: cout << "Good\n";
    }
}

void task1() {
    // Поименованные целочисленные константы
    enum Buttons {
        STOP = 1,
        PLAY = 2,
        NEXT = 3,
    };
    Buttons button1 = Buttons::STOP;

    switch (button1)    {
        case STOP: cout << "Stop\n"; break;
        case PLAY: cout << "Play\n"; break;
        case NEXT: cout << "Next\n"; break;
        default: break;
    }
}

void bad_practic() {

marker1:
    task0();

    char answer;
    cout << "Do you want repeat? 'y/n' ";
    cin >> answer;
    if (answer == 'y') {
        goto marker1;
    }
    //cout << "Hello\n";
}

void test_while() {
    // Сумма алгебр. последовательности
    // 1 + 2 + 3 + 4 + 5

    int sum = 1 + 2 + 3 + 4 + 5;
    cout << sum << endl;

    int sum1 = 0;
    sum1 = sum1 + 1;
    sum1 = sum1 + 2;
    sum1 = sum1 + 3;
    sum1 = sum1 + 4;
    sum1 = sum1 + 5;
    cout << sum1 << endl;

    int n = 1;
    int sum2 = 0;
    while (n <= 5) {
        //cout << n << " ";
        sum2 = sum2 + n;
        n += 1;
    }
    cout << sum2 << endl;
}

void horizontal() {
    int max_num;

    cout << "Enter max_num: ";
    cin >> max_num;

    while (max_num > 0) {
        cout << max_num << " ";
        max_num -= 1;
    }
}

void show_sqrtab() {
    int x = 0;
    cout << "\tx\t|\tx^2\n";
    cout << "------------------------------\n";
    while (x <= 20) {
        cout << "\t" << x
             << "\t|\t"
             << x * x << endl;
        x += 1;
    }
}

int main() {
    //bad_practic();
    //test_while();
    //horizontal();
    //show_sqrtab();

    return 0;
}