Compilare: main.c: In function 'main': main.c:24:16: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'long int *' [-Wformat=] fscanf(ptr, "%d", &n); ^ main.c:26:17: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'long int *' [-Wformat=] fscanf(ptr, "%d %d %d\n", &a, &b, &c); ^ main.c:26:20: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'long int *' [-Wformat=] fscanf(ptr, "%d %d %d\n", &a, &b, &c); ^ main.c:26:23: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'long int *' [-Wformat=] fscanf(ptr, "%d %d %d\n", &a, &b, &c); ^ main.c:29:20: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long int' [-Wformat=] fprintf(ptrO, "%d %d\n", x*c/d, y*c/d); ^ main.c:29:23: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long int' [-Wformat=] fprintf(ptrO, "%d %d\n", x*c/d, y*c/d); ^ main.c:24:2: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(ptr, "%d", &n); ^~~~~~~~~~~~~~~~~~~~~ main.c:26:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(ptr, "%d %d %d\n", &a, &b, &c); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~