Eroare de compilare: user.c: In function ‘main’: user.c:9:5: error: unknown type name ‘__uint128_t’ __uint128_t c; ^ user.c:16:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘uint64_t’ [-Wformat=] printf("%d\n", a + b); ^ user.c:9:17: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] __uint128_t c; ^ user.c:11:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("adunare.in", "r", stdin); ^ user.c:12:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("adunare.out", "w", stdout); ^ user.c:14:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%llu%llu", &a, &b); ^