Compilare: user.c: In function ‘main’: user.c:47:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d ", &v[i]); ^ user.c:48:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, MAXL + 2, in); ^ user.c:51:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d ", &n); ^ user.c:53:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s2[i], MAXL2 + 2, in); ^