ООП лаб 1

#include <iostream>
#include <cmath>

using namespace std;

struct param {
    double A,
           B,
           C,
           D,
           s,
           p,
           res;
};

double* input(int* size, char arr_name) {
    cout << "Enter size " << arr_name << "[]: ";
    cin >> *size;

    double* arr = new double[*size];
    cout << "Enter elements " << arr_name << "[" << *size << "]: ";
    for (int i = 0; i < *size; i++)
        cin >> arr[i];

    return arr;
}

void if_a(double* arr, int* size, param* p) {
    p->A = 0;
    p->B = 0;
    for (int i = 0; i < *size; i++) {
        if (arr[i] <= 0)
            p->A += arr[i] * sin(arr[i]);
        else
            p->B += arr[i] * tan(arr[i]);
    }
    p->A *= p->s;
    p->B *= p->p;
}

void if_b(double* arr, int* size, param* p) {
    p->D = 0;
    p->C = 0;
    for (int i = 0; i < *size; i++) {
        if (arr[i] <= 0)
            p->D += arr[i] * cos(arr[i]);
        else
            p->C += arr[i] * sin(arr[i]);
    }
    p->D *= p->s;
    p->C *= p->p;
}

void solveArr(double* arr, int* size, param* p, void (*f)(double*, int*, param*)) {
    p->s = 0;
    p->p = 1;
    for (int i = 0; i < *size; i++) {
        p->s += arr[i];
        p->p *= arr[i];
    }

    f(arr, size, p);
}

double culc(param* p) {
    return (p->A + p->B * sin(p->A)) / (cos(p->D) + sin(p->C));
}

int main() {
    int a_size;
    int b_size;
    double* a = input(&a_size, 'a');
    double* b = input(&b_size, 'b');

    param p;
    solveArr(a, &a_size, &p, if_a);
    solveArr(b, &b_size, &p, if_b);

    p.res = culc(&p);
    cout << "Result = " << p.res;

    return 0;
}