Eroare de compilare: user.cpp: In function ‘void cit()’: user.cpp:10:45: error: ambiguous overload for ‘operator>>’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘int’) for(int i=0;i<m;i++) for(int j=0;j<n;j++) f>>(int)a[i][j]; ^ user.cpp:10:45: note: candidates are: In file included from /usr/local/include/c++/4.8.0/fstream:38:0, from user.cpp:1: /usr/local/include/c++/4.8.0/istream:120:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match> operator>>(__istream_type& (*__pf)(__istream_type&)) ^ /usr/local/include/c++/4.8.0/istream:120:7: note: no known conversion for argument 1 from ‘int’ to ‘std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&) {aka std::basic_istream<char>& (*)(std::basic_istream<char>&)}’ /usr/local/include/c++/4.8.0/istream:124:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_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>::__ios_type = std::basic_ios<char>] <near match> operator>>(__ios_type& (*__pf)(__ios_type&)) ^ /usr/local/include/c++/4.8.0/istream:124:7: note: no known conversion for argument 1 from ‘int’ to ‘std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&) {aka std::basic_ios<char>& (*)(std::basic_ios<char>&)}’ /usr/local/include/c++/4.8.0/istream:131:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] <near match> operator>>(ios_base& (*__pf)(ios_base&)) ^ /usr/local/include/c++/4.8.0/istream:131:7: note: no known conversion for argument 1 from ‘int’ to ‘std::ios_base& (*)(std::ios_base&)’ /usr/local/include/c++/4.8.0/istream:259:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(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>] <near match> operator>>(__streambuf_type* __sb); ^ /usr/local/include/c++/4.8.0/istream:259:7: note: no known conversion for argument 1 from ‘int’ to ‘std::basic_istream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}’ user.cpp: In function ‘void rez()’: user.cpp:20:9: warning: overflow in implicit constant conversion [-Woverflow] b[1][0]=3000000; ^