Eroare de compilare: main.cpp: In function 'int main()': main.cpp:70:22: error: 'class std::priority_queue<std::pair<int, std::pair<int, int> > >' has no member named 'front' 70 | int x = walk.front().second.first; | ^~~~~ main.cpp:71:22: error: 'class std::priority_queue<std::pair<int, std::pair<int, int> > >' has no member named 'front' 71 | int y = walk.front().second.second; | ^~~~~ main.cpp:76:22: error: no matching function for call to 'std::priority_queue<std::pair<int, std::pair<int, int> > >::push(<brace-enclosed initializer list>)' 76 | walk.push({x+1,y}); | ~~~~~~~~~^~~~~~~~~ In file included from /usr/include/c++/12.2.1/queue:64, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:86, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_queue.h:738:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' 738 | push(const value_type& __x) | ^~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:738:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const std::priority_queue<std::pair<int, std::pair<int, int> > >::value_type&' {aka 'const std::pair<int, std::pair<int, int> >&'} 738 | push(const value_type& __x) | ~~~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_queue.h:746:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(value_type&&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' 746 | push(value_type&& __x) | ^~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:746:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::pair<int, std::pair<int, int> > >::value_type&&' {aka 'std::pair<int, std::pair<int, int> >&&'} 746 | push(value_type&& __x) | ~~~~~~~~~~~~~^~~ main.cpp:80:22: error: no matching function for call to 'std::priority_queue<std::pair<int, std::pair<int, int> > >::push(<brace-enclosed initializer list>)' 80 | walk.push({x-1,y}); | ~~~~~~~~~^~~~~~~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:738:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' 738 | push(const value_type& __x) | ^~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:738:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const std::priority_queue<std::pair<int, std::pair<int, int> > >::value_type&' {aka 'const std::pair<int, std::pair<int, int> >&'} 738 | push(const value_type& __x) | ~~~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_queue.h:746:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(value_type&&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' 746 | push(value_type&& __x) | ^~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:746:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::pair<int, std::pair<int, int> > >::value_type&&' {aka 'std::pair<int, std::pair<int, int> >&&'} 746 | push(value_type&& __x) | ~~~~~~~~~~~~~^~~ main.cpp:84:22: error: no matching function for call to 'std::priority_queue<std::pair<int, std::pair<int, int> > >::push(<brace-enclosed initializer list>)' 84 | walk.push({x,y+1}); | ~~~~~~~~~^~~~~~~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:738:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' 738 | push(const value_type& __x) | ^~~~ /usr/include/c++/12.2.1/bits/stl_queue.h:738:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const std::priority_queue<std::pair<int, std::pair<int, int> > >::value_type&' {aka 'const std::pair<int, std::pair<int, int> >&'} 738 | push(const value_type& __x) | ~~~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_queue.h:746:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(value_type&&) [with _Tp = std::pair<int, std::pair<int, int> >; _Sequence = std::vector<std::pair<int, std::pair<int, int> >, std::allocator<std::pair<int, std::pair<int, int> > > >; _Compare = std::less<std::pair<int, std::pair<int, int> > >; value_type = std::pair<int, std::pair<int, int> >]' Non zero exit status: 1