Compilare: user.c: In function ‘main’: user.c:10:2: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long long int *’ [-Wformat=] fscanf(fin,"%I64d",&n); ^ user.c:15:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fout,"%I64d\n",t); ^ user.c:10:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%I64d",&n); ^