Eroare de compilare: main.cpp: In function 'void solve()': main.cpp:43:67: error: no matching function for call to 'std::priority_queue<std::pair<int, long double>, std::vector<std::pair<int, long double> >, compare>::push(std::tuple<int, int, long double>)' heap.push(mktp(1, i, doDistance(points[1], points[i]))); ^ In file included from /usr/include/c++/6/queue:64:0, from main.cpp:3: /usr/include/c++/6/bits/stl_queue.h:558:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, long double>; _Sequence = std::vector<std::pair<int, long double> >; _Compare = compare; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, long double>] push(const value_type& __x) ^~~~ /usr/include/c++/6/bits/stl_queue.h:558:7: note: no known conversion for argument 1 from 'std::tuple<int, int, long double>' to 'const value_type& {aka const std::pair<int, long double>&}' /usr/include/c++/6/bits/stl_queue.h:566:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::pair<int, long double>; _Sequence = std::vector<std::pair<int, long double> >; _Compare = compare; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, long double>] push(value_type&& __x) ^~~~ /usr/include/c++/6/bits/stl_queue.h:566:7: note: no known conversion for argument 1 from 'std::tuple<int, int, long double>' to 'std::priority_queue<std::pair<int, long double>, std::vector<std::pair<int, long double> >, compare>::value_type&& {aka std::pair<int, long double>&&}' main.cpp:57:77: error: no matching function for call to 'std::priority_queue<std::pair<int, long double>, std::vector<std::pair<int, long double> >, compare>::push(std::tuple<int, int, long double>)' heap.push(mktp(to, i, doDistance(points[to], points[i]))); ^ In file included from /usr/include/c++/6/queue:64:0, from main.cpp:3: /usr/include/c++/6/bits/stl_queue.h:558:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, long double>; _Sequence = std::vector<std::pair<int, long double> >; _Compare = compare; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, long double>] push(const value_type& __x) ^~~~ /usr/include/c++/6/bits/stl_queue.h:558:7: note: no known conversion for argument 1 from 'std::tuple<int, int, long double>' to 'const value_type& {aka const std::pair<int, long double>&}' /usr/include/c++/6/bits/stl_queue.h:566:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::pair<int, long double>; _Sequence = std::vector<std::pair<int, long double> >; _Compare = compare; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, long double>] push(value_type&& __x) ^~~~ /usr/include/c++/6/bits/stl_queue.h:566:7: note: no known conversion for argument 1 from 'std::tuple<int, int, long double>' to 'std::priority_queue<std::pair<int, long double>, std::vector<std::pair<int, long double> >, compare>::value_type&& {aka std::pair<int, long double>&&}' main.cpp:46:13: warning: unused variable 'from' [-Wunused-variable] int from, to, cost; ^~~~ Non zero exit status: 1