Compilare: user.c: In function ‘main’: user.c:56:8: warning: unused variable ‘f_out’ [-Wunused-variable] FILE *f_out = freopen("iepuri.out", "wt", stdout); ^ user.c:55:8: warning: unused variable ‘f_in’ [-Wunused-variable] FILE *f_in = freopen("iepuri.in", "rt", stdin); ^ user.c:59:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &T); ^ user.c:68:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld %lld %lld %lld", &X, &Y, &Z, &A, &B, &C, &N); ^