gistfile1.txt

1)
#include <iostream>
using namespace std;

double add(double a, double b) { return a + b; }
double subtract(double a, double b) { return a - b; }
double multiply(double a, double b) { return a * b; }
double divide(double a, double b) { return b != 0 ? a / b : 0; }

int main() {
    double (*operations[])(double, double) = { add, subtract, multiply, divide };
    char symbols[] = { '+', '-', '*', '/' };

    double a, b;
    char op;
    cout << "Введіть вираз: ";
    cin >> a >> op >> b;

    for (int i = 0; i < 4; i++) {
        if (op == symbols[i]) {
            cout << "Результат: " << operations[i](a, b) << endl;
            break;
        }
    }

    return 0;
}

2)
#include <iostream>
using namespace std;

void sumArrays(const int* A, const int* B, int* C, int size) {
    for (int i = 0; i < size; i++) {
        C[i] = A[i] + B[i];
    }
}

int main() {
    const int SIZE = 5;
    int A[SIZE] = {1, 2, 3, 4, 5};
    int B[SIZE] = {5, 4, 3, 2, 1};
    int C[SIZE];

    sumArrays(A, B, C, SIZE);

    cout << "Масив C: ";
    for (int i = 0; i < SIZE; i++) {
        cout << C[i] << " ";
    }
    cout << endl;

    return 0;
}