Compilare: user.c: In function ‘main’: user.c:7:2: warning: format ‘%li’ expects argument of type ‘long int *’, but argument 2 has type ‘long long int *’ [-Wformat=] scanf("%li", &n); ^ user.c:24:2: warning: format ‘%li’ expects argument of type ‘long int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%li", p); ^ user.c:5:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen( "fractii.in", "r", stdin); ^ user.c:6:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("fractii.out", "w", stdout); ^ user.c:7:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%li", &n); ^