Eroare de compilare: main.cpp: In function 'int main()': main.cpp:11:22: error: no matching function for call to 'std::basic_ifstream<char>::getline(std::__cxx11::string [256], int)' in.getline(s, 256); ^ In file included from /usr/include/c++/6/fstream:38:0, from main.cpp:1: /usr/include/c++/6/istream:647:5: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = long int] basic_istream<char>:: ^~~~~~~~~~~~~~~~~~~ /usr/include/c++/6/istream:647:5: note: candidate expects 3 arguments, 2 provided /usr/include/c++/6/istream:427:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = long int] getline(char_type* __s, streamsize __n) ^~~~~~~ /usr/include/c++/6/istream:427:7: note: no known conversion for argument 1 from 'std::__cxx11::string [256] {aka std::__cxx11::basic_string<char> [256]}' to 'std::basic_istream<char>::char_type* {aka char*}' main.cpp:12:28: error: cannot convert 'std::__cxx11::string* {aka std::__cxx11::basic_string<char>*}' to 'const char*' for argument '1' to 'size_t strlen(const char*)' for(i = 0; i < strlen(s); i++) { ^ main.cpp:13:24: error: no matching function for call to 'isalpha(std::__cxx11::string&)' if(isalpha(s[i])) litere++; ^ In file included from /usr/include/c++/6/cctype:42:0, from /usr/include/c++/6/bits/localefwd.h:42, from /usr/include/c++/6/ios:41, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/ctype.h:111:1: note: candidate: int isalpha(int) __exctype (isalpha); ^ /usr/include/ctype.h:111:1: note: no known conversion for argument 1 from 'std::__cxx11::string {aka std::__cxx11::basic_string<char>}' to 'int' In file included from /usr/include/c++/6/bits/basic_ios.h:37:0, from /usr/include/c++/6/ios:44, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/locale_facets.h:2595:5: note: candidate: template<class _CharT> bool std::isalpha(_CharT, const std::locale&) isalpha(_CharT __c, const locale& __loc) ^~~~~~~ /usr/include/c++/6/bits/locale_facets.h:2595:5: note: template argument deduction/substitution failed: main.cpp:13:24: note: candidate expects 2 arguments, 1 provided if(isalpha(s[i])) litere++; ^ Non zero exit status: 1