Eroare de compilare: user.cpp: In function ‘int make_bfs(int)’: user.cpp:31: warning: no return statement in function returning non-void user.cpp: In function ‘void afis()’: user.cpp:58: error: ‘printf’ was not declared in this scope user.cpp:59: error: ‘printf’ was not declared in this scope user.cpp:61: error: ‘printf’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:65: error: ‘stdin’ was not declared in this scope user.cpp:65: error: ‘freopen’ was not declared in this scope user.cpp:66: error: ‘stdout’ was not declared in this scope user.cpp:67: error: ‘scanf’ was not declared in this scope user.cpp:95: error: ‘printf’ was not declared in this scope