Compilare: user.c: In function ‘main’: user.c:26:5: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long int *’ [-Wformat=] fscanf( fin, "%d", &n ); ^ user.c:30:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long int *’ [-Wformat=] fscanf( fin, "%d %d", &a, &b ); ^ user.c:30:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 4 has type ‘long int *’ [-Wformat=] user.c:31:9: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf( fout, "%d\n", euclid( a, b ) ); ^ user.c:26:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.c:30:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d %d", &a, &b ); ^