Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:12: error: ‘strlen’ was not declared in this scope user.cpp:24: error: expected ‘]’ before ‘if’ user.cpp:24: error: invalid types ‘int [30][int [30]]’ for array subscript user.cpp:24: error: expected ‘;’ before ‘if’ 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 ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result