E866 CIE-202603-C++二级-官方模拟-带选择判断-练习

    int y = 2;
    switch (y) {
        case 1: cout << "1";
        case 2: cout << "2";
        case 3: cout << "3"; break;
        default: cout << "4";
    }
    

    int a = 7;
    int b = 3;
    if (a % b == 0)
        cout << "Divisible";
    else
        cout << "Not divisible";
    

    int a = 10;
    int b = 5;
    int c = 15;
    if (a >= b && a >= c)
        cout << "A is largest";
    else if (b >= c)
        cout << "B is largest";
    else
        cout << "C is largest";
    

    for (int i = 3; i > 0; i--)
    {
        cout << i << " ";
    }
    

    int i = 10;
    while (i > 0)
    {
        if (i == 5)
            break;
        cout << i << " ";
        i--;
    }
    

    for (int i = 1; i <= 2; i++) {
        for (int j = 1; j <= 3; j++) {
            cout << i << "," << j << " ";
        }
        cout << endl;
    }
    

    int a[3] = {10, 20, 30};
    cout << a[2-1];
    

    int x[4] = {5, 10, 15, 20};
    for (int i = 3; i >= 0; i--)
        cout << x[i] << " ";