BV024functionsAdvWB

#include <iostream>
#include <ctime>

bool startNuclearWar{ false };

// 10 20

//int genRand()
//{
//  int maxVal{ 20 };
//  int minVal{ 5 };
//
//  return (rand() % (maxVal - minVal) + minVal);
//}
//
//int genRand1()
//{
//  int maxVal{ 50 };
//  int minVal{ 25 };
//
//  return (rand() % (maxVal - minVal) + minVal);
//}

//res = genRand(x,y);


//void max()
//{
//  int a{};
//  int b{};
//
//  std::cout << "Etnter A\n";
//  std::cin >> a;
//
//  std::cout << "Etnter B\n";
//  std::cin >> b;
//
//  //return a > b ? a : b;
//  std::cout << "Max is: " << (a > b ? a : b) << '\n';
//}

max(34)
max(34,55)
max(34, 55, 57)
int max(int a, int b = 42, bool print)
{
    int res{ a > b ? a : b };
    if (print)
    {
        std::cout << "Max is: " << res << '\n';
    }
    return res;
}


int genRand(int minVal, int maxVal)
{
    return (rand() % (maxVal - minVal) + minVal);
}


//maxPrint(x, y, true);
// maxPrint(answer, (maxPrint(x, y, false) + genRand(10,20))+2, true);
int maxPrint(int a, int b, bool print)
{
    //int a{x};
    //int b{};
    //bool print{true};

    int maxVal{ a > b ? a : b };

    if (print)
    {
        std::cout << "maxPrint -> max = " << maxVal << '\n';
    }

    return maxVal;
}

int count()
{
    const int maxVal{ (rand() % 11) + 1 };

    //std::cout << "count() -> maxVal = " << maxVal << '\n';

    int sum{ 0 };

    for (int i{ 0 }; i < maxVal; ++i)
    {
        sum += i;
        //std::cout << "Sum = " << sum << ' ';
    }
    //std::cout << '\n';
    //std::cout << "Sum of numbers from 0 to some random [0..10] is " << sum << '\n';
    return sum;
}

void sayHello()
{
    startNuclearWar = true;
    std::cout << "\n#####\n";
    std::cout << "Hello, I'm sayHello function!\n";
    if (rand() % 2)
    {
        return;
    }
    std::cout << "I'm useless, but nice function! :()\n";
    std::cout << "\n#####\n";
    return;
}

void testFun()
{
    std::cout << "i'm testFun\n";
};

void sayGoodbye()
{
    testFun();
    std::cout << "Simply bye!\n";
}


void swapVal(int num1, int num2);

const int correctAnswer{ 42 };



int arrG[10]{ 23,56,788,3 };

void checkState()
{
    /// ????
    ///
    ///
    startNuclearWar = false;
}

int counter()
{
    static int cnt{ 0 };
    return ++cnt;
}

void printArr(int arrPrn[], int arrSize)
{
    for (int i{ 0 }; i < arrSize; ++i)
    {
        std::cout << arrPrn[i] << ' ';
    }
    std::cout << '\n';
}

void print2DArr(int arrPrn[][3], int arrSizeY, int arrSizeX)
{
    for (int y{ 0 }; y < arrSizeY; ++y)
    {
        printArr(arrPrn[y], arrSizeX);
    }
    std::cout << '\n';
}

int arrEvenSum(int arr[], int arrSize)
{
    int sum{ 0 };
    for (int x{ 0 }; x < arrSize; ++x)
    {
        if (arr[x] % 2 == 0)
        {
            sum += arr[x];
        }
    }
    return sum;
}

int main()
{
    srand(time(0));

    int res{ 0 };

    //res = genRand(5,20);
    //std::cout << res << '\n';

    ////maxVal = 30;
    ////minVal = 15;

    //res = genRand(25,50);

    //std::cout << res << '\n';

    //max(14, 32, true);
    //max(12, 332, true);
    res = max(4, 2);
    std::cout << "Res is: " << res << '\n';
    //std::cout << "Call max directly: " << max(4, 2, false) << '\n';
    return 0;
    const int arrSize{ 10 };
    const int arrSize1{ 5 };

    const int arrSizeY{ 4 };
    const int arrSizeY1{ 2 };

    const int arrSizeX{ 3 };
    const int arrSizeX1{ 4 };


    int arr2D[arrSizeY][arrSizeX]
    {
        {1,2,3},
        {4,5,6},
        {7,8,9},
        {10,11,12}
    };

    int arr2D1[arrSizeY1][arrSizeX]
    {
        {1,2,3},
        {4,5,6}
    };

    int arr2D2[arrSizeY1][arrSizeX1]
    {
        {1,2,3,4},
        {5,6,7,8}
    };

    //print2DArr(arr2D1, arrSizeY1, arrSizeX);

    //return 0;

    int arr[arrSize]{2,1,4,6,8,3,5,10,2,1}; //32
    int arrA[6]{ 2,4,1,3,7,8 }; // 14
    int arrB[4]{ 2,4,1,3 }; // 6

    int resArr[3];

    resArr[0] = arrEvenSum(arr, arrSize);
    resArr[1] = arrEvenSum(arrA, 6);
    resArr[2] = arrEvenSum(arrB, 4);

    /*std::cout << "Sum of even elements is: " << arrEvenSum(arr, arrSize) << '\n';
    std::cout << "Sum of even elements is: " << arrEvenSum(arrA, 6) << '\n';
    std::cout << "Sum of even elements is: " << arrEvenSum(arrB, 4) << '\n';*/

    return 0;

    int arr1[arrSize1]{};

    int x{};
    int y{};

    //for (int i{ 0 }; i < 5; ++i)
    //{
    //  std::cout << counter() << ' ';
    //}
    //std::cout << '\n';

    /*int k{ 10 };
    int j{ 20 };


    std::cout << "k = " << k << " j = " << j << '\n';
    swapVal(k, j);
    std::cout << "k = " << k << " j = " << j << '\n';

    return 0;*/
    const int answer{ 42 };

    int val{};

    std::cout << "Start of the programm\n";


    //std::cout << "Enter A value\n";
    //std::cin >> x;

    //std::cout << "Enter B value\n";
    //std::cin >> y;

    ////std::cout << "Max = " << max(a,b) << '\n';
    //std::cout << "Max from X and Y is: " << maxPrint(x, y, false) << '\n';

    ////std::cout << "Complete answer is: " << max(answer, max(x, y)) << '\n';
    //maxPrint(answer, (maxPrint(x, y, false) + genRand(10,20))+2, true);

    printArr(arr, arrSize);
    printArr(arr1, arrSize1);

    //for (int i{ 0 }; i < arrSize; ++i)
    //{
    //  arr[i] = genRand(10,30);
    //  if (i < arrSize1)
    //  {
    //      arr1[i] = genRand(40, 50);
    //  }

    //}

    //printArr(arr, arrSize);
    //printArr(arr1, arrSize1);
    for (int i{ 0 }; i < arrSize; ++i) { std::cout << arr[i] << ' '; } std::cout << '\n';
    for (int i{ 0 }; i < arrSize1; ++i) { std::cout << arr1[i] << ' '; } std::cout << '\n';

    //for (int i{ 0 }; i < arrSize; ++i) { std::cout << arr[i] << ' '; } std::cout << '\n';
    //for (int i{ 0 }; i < arrSize; ++i) { std::cout << arr1[i] << ' '; } std::cout << '\n';

    return 0;

    std::cout << "Sum of numbers from 0 to some random [0..10] is " << count() << '\n';
    //count();

    //std::cout << "Val = " << (val = rand() % count()) << '\n';


    ////sayHello();
    //std::cout << "some actions in programm...\n";

    //sayHello();

    //std::cout << "Another actions some actions in programm...\n";

    //sayHello();

    //std::cout << "Some MORE actions in programm...\n";

    //sayGoodbye();

    return 0;
}

void swapVal(int num1, int num2)
{
    std::cout << "num1 = " << num1 << " num2 = " << num2 << '\n';
    int tmp{ num1 };
    num1 = num2;
    num2 = tmp;
    std::cout << "num1 = " << num1 << " num2 = " << num2 << '\n';
}