0_0_28233190_8822.cpp: In function 'int main()':
0_0_28233190_8822.cpp:8:6: error: ambiguous overload for 'operator>>' (operand types are 'std::istream {aka std::basic_istream<char>}' and 'int')
cin>>2*m*m-m+1;
^
0_0_28233190_8822.cpp:8:6: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
from 0_0_28233190_8822.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/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&))
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/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>&)}'
GCC4.9.2/x86_64-w64-mingw32/include/c++/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&))
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/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>&)}'
GCC4.9.2/x86_64-w64-mingw32/include/c++/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&))
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:131:7: note: no known conversion for argument 1 from 'int' to 'std::ios_base& (*)(std::ios_base&)'
GCC4.9.2/x86_64-w64-mingw32/include/c++/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);
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:259:7: note: no known conversion for argument 1 from 'int' to 'std::basic_istream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}'
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