Compilare: user.c: In function ‘Read’: user.c:21:5: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long long int *’ [-Wformat=] fscanf(f,"%d %d",&a[i].x,&a[i].y); ^ user.c:21:5: warning: format ‘%d’ expects argument of type ‘int *’, but argument 4 has type ‘long long int *’ [-Wformat=] user.c:19:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",n); ^ user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&a[i].x,&a[i].y); ^