Compilare: user.c: In function ‘main’: user.c:47:5: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 5 has type ‘int’ [-Wformat=] fprintf(fo, "%lu %lu %ld", mini_max_idx-k+2, mini_max_idx+1, mini_max); ^ user.c:24:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%lu%lu", &n, &k); ^ user.c:27:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%hd", &t); ^