Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:58:16: error: ‘X’ was not declared in this scope fin >> X >> Y >> Z >> T; ^ user.cpp:58:21: error: ‘Y’ was not declared in this scope fin >> X >> Y >> Z >> T; ^ user.cpp:58:26: error: ‘Z’ was not declared in this scope fin >> X >> Y >> Z >> T; ^ user.cpp:58:31: error: ‘T’ was not declared in this scope fin >> X >> Y >> Z >> T; ^ user.cpp:52:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "mayonaka.out", "w", stdout ); ^ user.cpp: In constructor ‘InputReader::InputReader(const char*)’: user.cpp:22:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^ user.cpp: In member function ‘void InputReader::advance()’: user.cpp:44:51: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^