Stiva C++

#include <iostream>  //input - output stream
using namespace std;

struct Stiva {
    int vector[5];
    int varf;
};

int main(){

    Stiva st;

    st.vector[0] = 2;
    st.varf = st.vector[0];
    cout << st.varf;

    st.vector[1] = 3;
    st.varf = st.vector[1];
    cout << st.varf;

    st.vector[2] = 4;
    st.varf = st.vector[2];
    cout << st.varf;

    return 0;
}