Eroare de compilare: main.cpp: In function 'int dijkstra(int, int, int)': main.cpp:33:17: error: reference to 'prev' is ambiguous prev[temp1]=make_pair(temp, i); ^~~~ main.cpp:6:16: note: candidates are: std::pair<int, int> prev [2097152] pair<int, int> prev[1<<21]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:217:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^~~~ main.cpp: In function 'int main()': main.cpp:58:23: error: reference to 'prev' is ambiguous sol[++sol[0]]=prev[conf].second; ^~~~ main.cpp:6:16: note: candidates are: std::pair<int, int> prev [2097152] pair<int, int> prev[1<<21]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:217:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^~~~ main.cpp:59:14: error: reference to 'prev' is ambiguous conf=prev[conf].first; ^~~~ main.cpp:6:16: note: candidates are: std::pair<int, int> prev [2097152] pair<int, int> prev[1<<21]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, Non zero exit status: 1