Compilare: user.c: In function ‘main’: user.c:8:5: warning: format ‘%i’ expects argument of type ‘int *’, but argument 3 has type ‘long long int *’ [-Wformat=] fscanf(si,"%i%i",&a,&n); ^ user.c:8:5: warning: format ‘%i’ expects argument of type ‘int *’, but argument 4 has type ‘long long int *’ [-Wformat=] user.c:16:5: warning: format ‘%i’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(so,"%i",p); ^ user.c:8:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(si,"%i%i",&a,&n); ^