Compilare: user.c: In function ‘main’: user.c:11:2: warning: format ‘%li’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(g, "%li", a+b); ^ user.c:9:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &a); ^ user.c:10:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &b); ^