Compilare: user.c: In function ‘main’: user.c:11:2: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long int *’ [-Wformat=] (void)fscanf(f,"%d %d", &a, &b); ^ user.c:11:2: warning: format ‘%d’ expects argument of type ‘int *’, but argument 4 has type ‘long int *’ [-Wformat=] user.c:12:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(g,"%d",a+b); ^ user.c:11:2: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] (void)fscanf(f,"%d %d", &a, &b); ^