Дз по массивам

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ЧЕТНЫЕ ЧИСЛА ИЗ МАССИВА

#include <iostream>
using namespace std;
void Input(int arr[], int size) {
    for (int i = 0; i < size; i++) {
        cout << "arr[" << i << "] = ";
        cin >> arr[i];
    }
}
void Output(int mass[], int size, int arr[]){
    for (int i = 0; i < size; i++) {
        if (arr[i] % 2 == 0) {
            mass[i] = arr[i];
            cout << mass[i] << " ";
        }
    }
    cout << "}" << endl;
}
    int main()
    {
        setlocale(LC_ALL, "RUSSIAN");
        int *arr;
        int *mass;
        int size;
        cout << "Введите размер массива." << endl;
        cout << "n= ";
        cin >> size;
        if (size <= 0) {
            cout << "Размер массива должен быть положительным" << endl;
            return 1;
        }
        arr = new int[size];
        int n = 0;
        Input(arr, size);
        for (int i = 0; i < size; i++) {
            if (arr[i] % 2 == 0) {
                    n++;
                }
            }
        cout << " " << endl;
        cout << "Массив с четными числами: { ";
        mass = new int[n];
        Output(mass, size, arr);
        cout << " " << endl;
        return 0;
    }

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МАСКИМАЛЬНЫЙ ЧЛЕН МАССИВА

#include <iostream>
using namespace std;
int main()
{
    setlocale(LC_ALL, "RUSSIAN");
    int *arr;
    int size;
    cout << "Введите размер массива." << endl;
    cout << "n= ";
    cin >> size;
    if (size <= 0) {
        cerr << "Размер массива должен быть положительным" << endl;
        return 1;
    }
    arr = new int[size];
    for (int i = 0; i < size; i++) {
        cout << "arr[" << i << "] = ";
        cin >> arr[i];
    }
    int max = arr[0];
    for (int i = 1; i < size; i++) {
        if (arr[i] > max) {
            max = arr[i];
        }
    }
    cout << " " << endl;
    cout << "Максимальный элемент массива:  " << max << endl;
    cout << " " << endl;
    delete[] arr;
    return 0;
}

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3 числа

#include <iostream>
using namespace std;
double Max(double x, double y){
    if (x > y){
        return x;
    }
    else return y;
}
double Min(double x, double y){
    if (x < y){
        return x;
    }
    else return y;
}
int main()
{
    setlocale(LC_ALL, "RUSSIAN");
    int A, B, C, max, min;
    cout << "Vvedite 1 chislo" << endl;
    cin >> A;
    cout << "Vvedite 2 chislo" << endl;
    cin >> B;
    cout << "Vvedite 3 chislo" << endl;
    cin >> C;
    max = Max(A, Max(B, C));
    min = Min(C, Min(A, B));
    cout << "MAX = " << max << endl;
    cout << "MIN = " << min << endl;
    return 0;
}

#######################

#include <iostream>
using namespace std;
double distance(double a, double b, double c, double d){
    return sqrt(pow((c - a), 2) + pow((d - b), 2));
}

int main()
{
    setlocale(LC_ALL, "RUSSIAN");
    double x1, y1, x2, y2, x3, y3, P, p, S;
    cout << "Please enter A (x1,y1) = " << endl;
    cin >> x1;
    cin >> y1;
    cout << "Please enter B (x2,y2) = " << endl;
    cin >> x2;
    cin >> y2;
    cout << "Please enter C (x3,y3) = " << endl;
    cin >> x3;
    cin >> y3;
    P = distance(x1, y1, x2, y2) + distance(x2, y2, x3, y3) + distance(x1, y1, x3, y3);
    p = P / 2;
    S = sqrt(p*(p - distance(x1, y1, x2, y2))*(p - distance(x2, y2, x3, y3))*(p - distance(x1, y1, x3, y3)));
    cout << " "<< endl;
    cout << p << endl;
    cout << S << endl;
    return 0;
}