0_0_18269461_16421.cpp: In function 'void judge2(int, int, node&, node&)': 0_0_18269461_16421.cpp:48:5: error: 'q' was not declared in this scope { q Q ^ 0_0_18269461_16421.cpp:56:5: error: 'else' without a previous 'if' else ^