Compilare: user.c: In function ‘main’: user.c:6: warning: passing argument 1 of ‘fscanf’ from incompatible pointer type /usr/include/stdio.h:425: note: expected ‘struct FILE * __restrict__’ but argument is of type ‘char *’ user.c:6: warning: format ‘%lli’ expects type ‘long long int *’, but argument 3 has type ‘long long int’ user.c:6: warning: format ‘%lli’ expects type ‘long long int *’, but argument 4 has type ‘long long int’ user.c:6: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:11: warning: control reaches end of non-void function