panda.cpp: In function 'bool compatibil(int, int)': panda.cpp:25: warning: suggest parentheses around comparison in operand of '^' panda.cpp: In function 'int main()': panda.cpp:77: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result panda.cpp:78: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result panda.cpp:80: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result panda.cpp:81: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result panda.cpp:82: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result panda.cpp:89: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result panda.cpp:95: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result