Compilare: user.c: In function ‘main’: user.c:9:5: warning: format ‘%li’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(g,"%li\n",a+b); ^ user.c:7:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a); ^ user.c:8:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&b); ^