Eroare de compilare: user.cpp: In function ‘void df1(int)’: user.cpp:14: error: invalid use of member (did you forget the ‘&’ ?) user.cpp: In function ‘void df2(int)’: user.cpp:26: error: ‘i’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:38: error: ‘graf’ cannot be used as a function user.cpp:39: error: ‘graftrans’ cannot be used as a function user.cpp:46: error: ‘j’ was not declared in this scope user.cpp:52: error: ‘ttc’ was not declared in this scope user.cpp:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result