Indices :

Solution :

#include <stdio.h>

int main(void)
{
    int notes[5] = {12, 15, 8, 17, 14};
    int somme = 0;

    for (int i = 0; i < 5; i++) {
        somme = somme + notes[i];
    }

    float moyenne = (float)somme / 5;
    printf("Moyenne : %.2f\n", moyenne);

    return 0;
}