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

int main()
{
    double note;
    double somme = 0.0, plusHaute = 0.0, plusBasse = 20.0;
    unsigned nombre;

    cout << "Nombre de notes pour le traitement : ";
    cin >> nombre;
    cout << endl;

    for (unsigned i=0; i<nombre; i++)
    {
        cout << "Note n°" << i+1 << " = ";
        cin >> note;
        somme += note;
        if (note > plusHaute) plusHaute = note;
        if (note < plusBasse) plusBasse = note;
    }

    cout << endl << setprecision(4);
    cout << "Moyenne    :" << setw(10) << somme / nombre << endl;
    cout << "Plus haute :" << setw(10) << plusHaute << endl;
    cout << "Plus basse :" << setw(10) << plusBasse << endl << endl;

    return 0;
}