Compilare: user.c: In function ‘main’: user.c:10:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long long int *’ [-Wformat=] fscanf(fin,"%I64d%I64d",&a,&b); ^ user.c:10:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 4 has type ‘long long int *’ [-Wformat=] user.c:8:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.c:10:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%I64d%I64d",&a,&b); ^