Eroare de compilare: main.cpp: In function 'int main()': main.cpp:40:35: error: no matching function for call to 'std::set<int>::erase(std::set<int>::reverse_iterator)' Q.erase(Q.rbegin()); ^ In file included from /usr/include/c++/6/set:61:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:87, from main.cpp:1: /usr/include/c++/6/bits/stl_set.h:571:7: note: candidate: std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<int>; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<int>] erase(const_iterator __position) ^~~~~ /usr/include/c++/6/bits/stl_set.h:571:7: note: no known conversion for argument 1 from 'std::set<int>::reverse_iterator {aka std::reverse_iterator<std::_Rb_tree_const_iterator<int> >}' to 'std::set<int>::const_iterator {aka std::_Rb_tree_const_iterator<int>}' /usr/include/c++/6/bits/stl_set.h:601:7: note: candidate: std::set<_Key, _Compare, _Alloc>::size_type std::set<_Key, _Compare, _Alloc>::erase(const key_type&) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::size_type = long unsigned int; std::set<_Key, _Compare, _Alloc>::key_type = int] erase(const key_type& __x) ^~~~~ /usr/include/c++/6/bits/stl_set.h:601:7: note: no known conversion for argument 1 from 'std::set<int>::reverse_iterator {aka std::reverse_iterator<std::_Rb_tree_const_iterator<int> >}' to 'const key_type& {aka const int&}' /usr/include/c++/6/bits/stl_set.h:623:7: note: candidate: std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator, std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<int>; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<int>] erase(const_iterator __first, const_iterator __last) ^~~~~ /usr/include/c++/6/bits/stl_set.h:623:7: note: candidate expects 2 arguments, 1 provided main.cpp:43:31: error: no matching function for call to 'std::set<int>::erase(std::set<int>::reverse_iterator)' Q.erase(Q.rbegin()); ^ In file included from /usr/include/c++/6/set:61:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:87, from main.cpp:1: /usr/include/c++/6/bits/stl_set.h:571:7: note: candidate: std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<int>; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<int>] erase(const_iterator __position) ^~~~~ /usr/include/c++/6/bits/stl_set.h:571:7: note: no known conversion for argument 1 from 'std::set<int>::reverse_iterator {aka std::reverse_iterator<std::_Rb_tree_const_iterator<int> >}' to 'std::set<int>::const_iterator {aka std::_Rb_tree_const_iterator<int>}' /usr/include/c++/6/bits/stl_set.h:601:7: note: candidate: std::set<_Key, _Compare, _Alloc>::size_type std::set<_Key, _Compare, _Alloc>::erase(const key_type&) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::size_type = long unsigned int; std::set<_Key, _Compare, _Alloc>::key_type = int] erase(const key_type& __x) ^~~~~ /usr/include/c++/6/bits/stl_set.h:601:7: note: no known conversion for argument 1 from 'std::set<int>::reverse_iterator {aka std::reverse_iterator<std::_Rb_tree_const_iterator<int> >}' to 'const key_type& {aka const int&}' /usr/include/c++/6/bits/stl_set.h:623:7: note: candidate: std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator, std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = int; _Compare = std::less<int>; _Alloc = std::allocator<int>; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<int>; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<int>] erase(const_iterator __first, const_iterator __last) ^~~~~ /usr/include/c++/6/bits/stl_set.h:623:7: note: candidate expects 2 arguments, 1 provided Non zero exit status: 1