Compilare: user.c: In function ‘euclid’: user.c:10:5: warning: passing argument 3 of ‘euclid’ from incompatible pointer type [enabled by default] euclid(B, A % B, &X0, &Y0); ^ user.c:5:6: note: expected ‘long long int *’ but argument is of type ‘int *’ void euclid(int A, int B, ll int *X, ll int *Y) { ^ user.c:10:5: warning: passing argument 4 of ‘euclid’ from incompatible pointer type [enabled by default] euclid(B, A % B, &X0, &Y0); ^ user.c:5:6: note: expected ‘long long int *’ but argument is of type ‘int *’ void euclid(int A, int B, ll int *X, ll int *Y) { ^ user.c: In function ‘main’: user.c:22:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &A, &N); ^