Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:28:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<s.size(); i++) { ^ user.cpp:47:57: error: conversion from ‘std::tr1::_Hashtable<int, std::pair<const int, std::vector<std::basic_string<char> > >, std::allocator<std::pair<const int, std::vector<std::basic_string<char> > > >, std::_Select1st<std::pair<const int, std::vector<std::basic_string<char> > > >, std::equal_to<int>, std::tr1::hash<int>, std::tr1::__detail::_Mod_range_hashing, std::tr1::__detail::_Default_ranged_hash, std::tr1::__detail::_Prime_rehash_policy, false, false, true>::iterator {aka std::tr1::__detail::_Hashtable_iterator<std::pair<const int, std::vector<std::basic_string<char> > >, false, false>}’ to non-scalar type ‘std::map<int, std::vector<std::basic_string<char> > >::iterator {aka std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >}’ requested for(map <int, vector <string> >::iterator i=M.begin(); i!=M.end(); i++) { ^ user.cpp:47:61: error: no match for ‘operator!=’ (operand types are ‘std::map<int, std::vector<std::basic_string<char> > >::iterator {aka std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >}’ and ‘std::tr1::_Hashtable<int, std::pair<const int, std::vector<std::basic_string<char> > >, std::allocator<std::pair<const int, std::vector<std::basic_string<char> > > >, std::_Select1st<std::pair<const int, std::vector<std::basic_string<char> > > >, std::equal_to<int>, std::tr1::hash<int>, std::tr1::__detail::_Mod_range_hashing, std::tr1::__detail::_Default_ranged_hash, std::tr1::__detail::_Prime_rehash_policy, false, false, true>::iterator {aka std::tr1::__detail::_Hashtable_iterator<std::pair<const int, std::vector<std::basic_string<char> > >, false, false>}’) for(map <int, vector <string> >::iterator i=M.begin(); i!=M.end(); i++) { ^ user.cpp:47:61: note: candidates are: In file included from /usr/include/c++/4.8/map:60:0, from user.cpp:6: /usr/include/c++/4.8/bits/stl_tree.h:221:7: note: bool std::_Rb_tree_iterator<_Tp>::operator!=(const _Self&) const [with _Tp = std::pair<const int, std::vector<std::basic_string<char> > >; std::_Rb_tree_iterator<_Tp>::_Self = std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >] operator!=(const _Self& __x) const ^ /usr/include/c++/4.8/bits/stl_tree.h:221:7: note: no known conversion for argument 1 from ‘std::tr1::_Hashtable<int, std::pair<const int, std::vector<std::basic_string<char> > >, std::allocator<std::pair<const int, std::vector<std::basic_string<char> > > >, std::_Select1st<std::pair<const int, std::vector<std::basic_string<char> > > >, std::equal_to<int>, std::tr1::hash<int>, std::tr1::__detail::_Mod_range_hashing, std::tr1::__detail::_Default_ranged_hash, std::tr1::__detail::_Prime_rehash_policy, false, false, true>::iterator {aka std::tr1::__detail::_Hashtable_iterator<std::pair<const int, std::vector<std::basic_string<char> > >, false, false>}’ to ‘const _Self& {aka const std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >&}’ In file included from /usr/include/c++/4.8/iosfwd:40:0, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/postypes.h:221:5: note: template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&) operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) ^ /usr/include/c++/4.8/bits/postypes.h:221:5: note: template argument deduction/substitution failed: user.cpp:47:69: note: ‘std::map<int, std::vector<std::basic_string<char> > >::iterator {aka std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >}’ is not derived from ‘const std::fpos<_StateT>’ for(map <int, vector <string> >::iterator i=M.begin(); i!=M.end(); i++) { ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_pair.h:227:5: note: template<class _T1, class _T2> constexpr bool std::operator!=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&) operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) ^ /usr/include/c++/4.8/bits/stl_pair.h:227:5: note: template argument deduction/substitution failed: user.cpp:47:69: note: ‘std::map<int, std::vector<std::basic_string<char> > >::iterator {aka std::_Rb_tree_iterator<std::pair<const int, std::vector<std::basic_string<char> > > >}’ is not derived from ‘const std::pair<_T1, _T2>’ for(map <int, vector <string> >::iterator i=M.begin(); i!=M.end(); i++) { ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:303:5: note: template<class _Iterator> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) operator!=(const reverse_iterator<_Iterator>& __x,