Eroare de compilare: user.cpp:19:13: error: ‘char exp [100001]’ redeclared as different kind of symbol char exp[MAX]; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:101:1: error: previous declaration of ‘double exp(double)’ __MATHCALL (exp,, (_Mdouble_ __x)); ^ user.cpp: In function ‘void read()’: user.cpp:39:25: error: no matching function for call to ‘std::basic_ifstream<char>::get(<unresolved overloaded function type>, int, char)’ fin.get(exp,MAX,'\n'); ^ user.cpp:39:25: note: candidates are: In file included from /usr/include/c++/4.8/fstream:38:0, from user.cpp:1: /usr/include/c++/4.8/istream:302:7: note: std::basic_istream<_CharT, _Traits>::int_type std::basic_istream<_CharT, _Traits>::get() [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::int_type = int] get(); ^ /usr/include/c++/4.8/istream:302:7: note: candidate expects 0 arguments, 3 provided /usr/include/c++/4.8/istream:316:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::char_type&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char] get(char_type& __c); ^ /usr/include/c++/4.8/istream:316:7: note: candidate expects 1 argument, 3 provided /usr/include/c++/4.8/istream:343:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(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 = int] get(char_type* __s, streamsize __n, char_type __delim); ^ /usr/include/c++/4.8/istream:343:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘std::basic_istream<char>::char_type* {aka char*}’ /usr/include/c++/4.8/istream:354:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::get(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 = int] get(char_type* __s, streamsize __n) ^ /usr/include/c++/4.8/istream:354:7: note: candidate expects 2 arguments, 3 provided /usr/include/c++/4.8/istream:377:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::__streambuf_type&, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>; std::basic_istream<_CharT, _Traits>::char_type = char] get(__streambuf_type& __sb, char_type __delim); ^ /usr/include/c++/4.8/istream:377:7: note: candidate expects 2 arguments, 3 provided /usr/include/c++/4.8/istream:387:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::__streambuf_type&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] get(__streambuf_type& __sb) ^ /usr/include/c++/4.8/istream:387:7: note: candidate expects 1 argument, 3 provided user.cpp: In function ‘void solve()’: user.cpp:46:19: error: cannot resolve overloaded function ‘exp’ based on conversion to type ‘const char*’ n = strlen(exp); ^ user.cpp:49:18: error: invalid types ‘<unresolved overloaded function type>[unsigned int]’ for array subscript