Compilare: user.c: In function ‘rid_la_put’: user.c:21:5: warning: type of ‘a’ defaults to ‘int’ [enabled by default] int rid_la_put(a, phi, n) { ^ user.c:21:5: warning: type of ‘phi’ defaults to ‘int’ [enabled by default] user.c:21:5: warning: type of ‘n’ defaults to ‘int’ [enabled by default] user.c: In function ‘main’: user.c:38:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d", &a, &n); ^