Eroare de compilare: user.cpp: In function ‘void euler()’: user.cpp:60:16: error: no match for ‘operator=’ (operand types are ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ and ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’) it = G[nod].back(); ^ user.cpp:60:16: note: candidates are: 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:708:11: note: __gnu_cxx::__normal_iterator<int*, std::vector<int> >& __gnu_cxx::__normal_iterator<int*, std::vector<int> >::operator=(const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&) class __normal_iterator ^ /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ to ‘const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&’ /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: __gnu_cxx::__normal_iterator<int*, std::vector<int> >& __gnu_cxx::__normal_iterator<int*, std::vector<int> >::operator=(__gnu_cxx::__normal_iterator<int*, std::vector<int> >&&) /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ to ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >&&’ user.cpp: In function ‘void citire()’: user.cpp:75:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&n,&m); ^ user.cpp:81:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&a,&b); ^ user.cpp: In function ‘int main()’: user.cpp:101:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ciclueuler.in","r",stdin); ^ user.cpp:102:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ciclueuler.out","w",stdout); ^