Problema 1-a

#include <iostream>
#include <string>
using namespace std;

struct elev {
    char nume[10];
    char prenume[20];
    int nota;
} a[20], c;

int main() {
    int n, i, j;
    float S;

    cout << "Numarul de elevi: ";
    cin >> n;
    cout << "Datele despre elev: " << endl;
    for (i = 1; i <= n; i++) {
        cout << "Elevul " << i << ": " << endl;
        cout << "Nume: ";
        cin >> a[i].nume;
        cout << "Prenume: ";
        cin >> a[i].prenume;
        cout << "Nota: ";
        cin >> a[i].nota;
        S += a[i].nota;
    }

    for (i = 1; i < n; i++)
        for (j = i + 1; j <= n; j++)
            if (a[i].nota < a[j].nota) {
                c = a[i];
                a[i] = a[j];
                a[j] = c;
            }

    cout << "Afisarea elevilor promovati: " << endl;
    for (i = 1; i <= n && a[i].nota >= 5; i++) {
        cout << a[i].nume << " " << a[i].prenume << " " << a[i].nota << " " << endl;
    }

    cout << "Media notelor= " << S / n << endl;

    return 0;
}