Compilare: user.c: In function ‘main’: user.c:13:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘uint64_t’ [-Wformat=] printf("%d\n", a + b); ^ user.c:6:20: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] uint64_t a, b, c; ^ user.c:8:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("adunare.in", "r", stdin); ^ user.c:9:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("adunare.out", "w", stdout); ^ user.c:11:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%llu%llu", &a, &b); ^