Compilare: user.c: In function ‘main’: user.c:31:9: warning: unused variable ‘g’ [-Wunused-variable] FILE *g = freopen("euclid3.out", "w", stdout); ^ user.c:30:9: warning: unused variable ‘f’ [-Wunused-variable] FILE *f = freopen("euclid3.in", "r", stdin); ^ user.c:33:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.c:35:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &a, &b, &c); ^