Compilare: user.c: In function ‘main’: user.c:11:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &n, &p); ^ user.c:28:17: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^ user.c:89:10: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(out, "\n%d", last + 1); ^