Eroare de compilare: user.cpp: In function ‘void div2(int*)’: user.cpp:29:31: error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive] a = (t = t * 10 + a) / 2; ^ user.cpp:29:36: error: invalid conversion from ‘int’ to ‘int*’ [-fpermissive] a = (t = t * 10 + a) / 2; ^ user.cpp: In function ‘int main()’: user.cpp:48:22: error: no match for ‘operator!=’ (operand types are ‘std::string {aka std::basic_string<char>}’ and ‘char’) for(i=L-1; s != ' ' && i>=0; --i) ^ user.cpp:48:22: note: candidates are: 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/istream:38, from /usr/include/c++/4.8/fstream:38, 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:48:25: note: ‘std::string {aka std::basic_string<char>}’ is not derived from ‘const std::fpos<_StateT>’ for(i=L-1; s != ' ' && i>=0; --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/istream:38, from /usr/include/c++/4.8/fstream:38, 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:48:25: note: ‘std::string {aka std::basic_string<char>}’ is not derived from ‘const std::pair<_T1, _T2>’ for(i=L-1; s != ' ' && i>=0; --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/istream:38, from /usr/include/c++/4.8/fstream:38, 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, ^ /usr/include/c++/4.8/bits/stl_iterator.h:303:5: note: template argument deduction/substitution failed: user.cpp:48:25: note: ‘std::string {aka std::basic_string<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’ for(i=L-1; s != ' ' && i>=0; --i) ^