P74859: I-èssim (4)

#include <iostream>
using namespace std;


int main() {
    int i, x;
    while (cin >> i) {
        bool trobat = false;
        int aux = i;
        x = 0;
        while (not trobat && i != 0 && x != -1) {
            cin >> x;
            if (x != -1) {
                --i;
                if (i == 0) trobat = true;
            }
        }
        if (trobat) cout << "A la posicio " << aux << " hi ha un " << x << '.' << endl;
        else cout << "Posicio incorrecta." << endl;
        while (x != -1) cin >> x;
    }
}