Eroare de compilare: main.cpp:5:22: error: no matching function for call to 'std::basic_istream<char>::basic_istream(const char [8])' istream fin("abc1.in"); ^ In file included from /usr/include/c++/6/sstream:38:0, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/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>] basic_istream(basic_istream&& __rhs) ^~~~~~~~~~~~~ /usr/include/c++/6/istream:613:7: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_istream<char>&&' /usr/include/c++/6/istream:606:7: note: candidate: std::basic_istream<_CharT, _Traits>::basic_istream() [with _CharT = char; _Traits = std::char_traits<char>] basic_istream() ^~~~~~~~~~~~~ /usr/include/c++/6/istream:606:7: note: candidate expects 0 arguments, 1 provided /usr/include/c++/6/istream:93:7: note: candidate: std::basic_istream<_CharT, _Traits>::basic_istream(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] basic_istream(__streambuf_type* __sb) ^~~~~~~~~~~~~ /usr/include/c++/6/istream:93:7: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_istream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}' main.cpp: In function 'int main()': main.cpp:25:5: error: 'else' without a previous 'if' else{ ^~~~ Non zero exit status: 1