Eroare de compilare: user.cpp:2:9: error: macro names must be identifiers user.cpp:4: error: ‘mx’ was not declared in this scope user.cpp:4: error: ‘mx’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:12: error: ‘mat’ was not declared in this scope user.cpp:17: error: ‘mat’ was not declared in this scope user.cpp:7: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:8: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:9: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result