Borderou de evaluare (job #106112)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14:27: error: no match for ‘operator<=’ in ‘i <= c’ user.cpp:14:27: note: candidates are: /usr/include/c++/4.6/bits/stl_pair.h:226:5: note: template<class _T1, class _T2> constexpr bool std::operator<=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&) /usr/include/c++/4.6/bits/stl_iterator.h:309:5: note: template<class _Iterator> bool std::operator<=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) /usr/include/c++/4.6/bits/stl_iterator.h:359:5: note: template<class _IteratorL, class _IteratorR> bool std::operator<=(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1061:5: note: template<class _IteratorL, class _IteratorR> bool std::operator<=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1067:5: note: template<class _Iterator> bool std::operator<=(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&) /usr/include/c++/4.6/bits/basic_string.h:2584:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&) /usr/include/c++/4.6/bits/basic_string.h:2596:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*) /usr/include/c++/4.6/bits/basic_string.h:2608:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&) user.cpp:15:16: error: no match for ‘operator*’ in ‘b1 * b’ user.cpp:19:16: error: no match for ‘operator*’ in ‘a1 * a’ user.cpp:22:15: error: no match for ‘operator=’ in ‘rest = (a1 % 10l)’ user.cpp:22:15: note: candidate is: /usr/include/c++/4.6/fstream:588:11: note: std::basic_ofstream<char>& std::basic_ofstream<char>::operator=(const std::basic_ofstream<char>&) <deleted> /usr/include/c++/4.6/fstream:588:11: note: no known conversion for argument 1 from ‘long int’ to ‘const std::basic_ofstream<char>&’ user.cpp:13:10: warning: unused variable ‘d’ [-Wunused-variable] user.cpp:13:12: warning: unused variable ‘f’ [-Wunused-variable]