Compilare: user.c: In function ‘main’: user.c:45:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fdin, "%d", &n); ^ user.c:46:33: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for (i = 1; i <= n; i++) fscanf(fdin, "%d", &v[i]); ^