src.cpp: In function 'int main()':
src.cpp:10:10: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
cin>>N>>M;
^
In file included from C:/Debug/compiler/gcc/lib/gcc/mingw32/4.9.2/include/c++/sstream:38:0,
from C:/Debug/compiler/gcc/lib/gcc/mingw32/4.9.2/include/c++/complex:45,
from C:/Debug/compiler/gcc/lib/gcc/mingw32/4.9.2/include/c++/ccomplex:38,
from C:/Debug/compiler/gcc/lib/gcc/mingw32/4.9.2/include/c++/mingw32/bits/stdc++.h:52,
from src.cpp:1:
C:/Debug/compiler/gcc/lib/gcc/mingw32/4.9.2/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = const int]'
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
^
src.cpp:10:13: error: 'M' was not declared in this scope
cin>>N>>M;
^