Compilare: user.c: In function ‘main’: user.c:11:12: warning: variable ‘g’ set but not used [-Wunused-but-set-variable] FILE *f, *g; ^ user.c:15:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &T); ^ user.c:18:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &a, &b); ^