Eroare de compilare: main.cpp:4:21: error: no matching function for call to 'std::basic_istream<char>::basic_istream(const char [7])' 4 | istream fin("dfs.in"); | ^ In file included from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: /usr/include/c++/12.2.1/istream:613:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream(std::basic_istream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]' 613 | basic_istream(basic_istream&& __rhs) | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/istream:613:37: note: no known conversion for argument 1 from 'const char [7]' to 'std::basic_istream<char>&&' 613 | basic_istream(basic_istream&& __rhs) | ~~~~~~~~~~~~~~~~^~~~~ /usr/include/c++/12.2.1/istream:606:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream() [with _CharT = char; _Traits = std::char_traits<char>]' 606 | basic_istream() | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/istream:606:7: note: candidate expects 0 arguments, 1 provided /usr/include/c++/12.2.1/istream:93:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]' 93 | basic_istream(__streambuf_type* __sb) | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/istream:93:39: note: no known conversion for argument 1 from 'const char [7]' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'} 93 | basic_istream(__streambuf_type* __sb) | ~~~~~~~~~~~~~~~~~~^~~~ main.cpp:5:23: error: no matching function for call to 'std::basic_ostream<char>::basic_ostream(const char [8])' 5 | ostream fout("dfs.out"); | ^ In file included from /usr/include/c++/12.2.1/istream:39: /usr/include/c++/12.2.1/ostream:393:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]' 393 | basic_ostream(basic_ostream&& __rhs) | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/ostream:393:37: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_ostream<char>&&' 393 | basic_ostream(basic_ostream&& __rhs) | ~~~~~~~~~~~~~~~~^~~~~ /usr/include/c++/12.2.1/ostream:389:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(std::basic_iostream<_CharT, _Traits>&) [with _CharT = char; _Traits = std::char_traits<char>]' 389 | basic_ostream(basic_iostream<_CharT, _Traits>&) { } | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/ostream:389:21: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_iostream<char>&' 389 | basic_ostream(basic_iostream<_CharT, _Traits>&) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/12.2.1/ostream:384:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream() [with _CharT = char; _Traits = std::char_traits<char>]' 384 | basic_ostream() | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/ostream:384:7: note: candidate expects 0 arguments, 1 provided /usr/include/c++/12.2.1/ostream:84:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]' 84 | basic_ostream(__streambuf_type* __sb) | ^~~~~~~~~~~~~ /usr/include/c++/12.2.1/ostream:84:39: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_ostream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'} 84 | basic_ostream(__streambuf_type* __sb) | ~~~~~~~~~~~~~~~~~~^~~~ Non zero exit status: 1