Compilare: user.c: In function ‘read’: user.c:35:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(str, Nadejde, f); ^ user.c: In function ‘main’: user.c:80:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d\n", &N, &M, &Q); ^ user.c:91:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &u, &v); ^