Compilare: user.c: In function ‘main’: user.c:48:9: warning: format ‘%li’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fout,"%li\n",area); ^ user.c:11:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &t); ^ user.c:17:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%s",sz); ^