Eroare de compilare: user.cpp:10:1: error: ‘ifstream’ does not name a type ifstream fi("graf.in"); ^ user.cpp: In function ‘void bfs(int, int*)’: user.cpp:14:31: error: ‘setmem’ was not declared in this scope setmem(d,(n+1)*sizeof(int),0); ^ user.cpp:13:9: warning: unused variable ‘q’ [-Wunused-variable] nod p,q; ^ user.cpp: In function ‘int main()’: user.cpp:38:2: error: ‘fi’ was not declared in this scope fi>>n>>m>>x>>y; ^ user.cpp:75:2: error: ‘ofstream’ was not declared in this scope ofstream fo("graf.out"); ^ user.cpp:75:2: note: suggested alternative: In file included from /usr/include/c++/4.8/ios:38:0, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/iosfwd:160:34: note: ‘std::ofstream’ typedef basic_ofstream<char> ofstream; ^ user.cpp:75:11: error: expected ‘;’ before ‘fo’ ofstream fo("graf.out"); ^ user.cpp:76:2: error: ‘fo’ was not declared in this scope fo<<nr<<endl; ^ user.cpp:76:10: error: ‘endl’ was not declared in this scope fo<<nr<<endl; ^ user.cpp:76:10: note: suggested alternative: In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/ostream:564:5: note: ‘std::endl’ endl(basic_ostream<_CharT, _Traits>& __os) ^