Compilare: user.c: In function ‘main’: user.c:51:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%hd", &n, &k); ^ user.c:53:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^ user.c:58:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%hd", &r[i]); ^ user.c:78:5: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=1; i<m; i++){ ^