Compilare: user.c: In function ‘main’: user.c:22: warning: passing argument 4 of ‘qsort’ from incompatible pointer type /usr/include/stdlib.h:756: note: expected ‘__compar_fn_t’ but argument is of type ‘int (*)(const int *, const int *)’ user.c:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result