Compilare: user.c: In function ‘main’: user.c:111: warning: passing argument 1 of ‘reduce_modulo’ makes pointer from integer without a cast user.c:37: note: expected ‘struct fractie *’ but argument is of type ‘long long int’ user.c:127: warning: passing argument 1 of ‘reduce_modulo’ makes pointer from integer without a cast user.c:37: note: expected ‘struct fractie *’ but argument is of type ‘long long int’ user.c:130: warning: passing argument 1 of ‘reduce_modulo’ makes pointer from integer without a cast user.c:37: note: expected ‘struct fractie *’ but argument is of type ‘long long int’ user.c:87: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:88: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:94: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result