LR3

#include <iostream>
using namespace std;

int main()
{
    int array[5];
    int sum = 0;
    for (int x = 0; x < 5; x++)
    {
        cout << "x[" << x + 1 << "] = ";
        cin >> array[x];
        if (x % 2 == 0)
            sum += array[x];
    }
    cout << "Suma elementiv masyvu z neparnymy nomeramy stanovyt " << sum;
}