Eroare de compilare: main.cpp: In function 'int main()': main.cpp:38:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(i=0; i<v[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp:40:4: error: reference to 'next' is ambiguous 40 | next = v[nod][i]; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:66, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/ios:40, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator_base_funcs.h:213:5: note: candidates are: 'template<class _InputIterator> _InputIterator std::next(_InputIterator, typename std::iterator_traits<_Iter>::difference_type)' 213 | next(_InputIterator __x, typename | ^~~~ main.cpp:15:26: note: 'int next' 15 | int n,m,i,j,c[50010],nod,next; | ^~~~ main.cpp:41:11: error: reference to 'next' is ambiguous 41 | if(c[g[next].a]+g[next].c < c[g[next].b]) | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:66, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/ios:40, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator_base_funcs.h:213:5: note: candidates are: 'template<class _InputIterator> _InputIterator std::next(_InputIterator, typename std::iterator_traits<_Iter>::difference_type)' 213 | next(_InputIterator __x, typename | ^~~~ main.cpp:15:26: note: 'int next' 15 | int n,m,i,j,c[50010],nod,next; | ^~~~ main.cpp:41:22: error: reference to 'next' is ambiguous 41 | if(c[g[next].a]+g[next].c < c[g[next].b]) | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:66, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/ios:40, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator_base_funcs.h:213:5: note: candidates are: 'template<class _InputIterator> _InputIterator std::next(_InputIterator, typename std::iterator_traits<_Iter>::difference_type)' 213 | next(_InputIterator __x, typename | ^~~~ main.cpp:15:26: note: 'int next' 15 | int n,m,i,j,c[50010],nod,next; | ^~~~ main.cpp:41:36: error: reference to 'next' is ambiguous Non zero exit status: 1