Eroare de compilare: main.cpp: In function 'int main()': main.cpp:46:24: error: cannot convert 'std::multiset<std::pair<int, int> >::iterator' {aka 'std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator'} to 'std::multiset<std::pair<int, int> >::iterator*' {aka 'std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator*'} in assignment 46 | o=s.lower_bound({pers[i].y,0}); | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~ | | | std::multiset<std::pair<int, int> >::iterator {aka std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator} main.cpp:47:12: error: 'it' was not declared in this scope; did you mean 'i'? 47 | if(it==s.end()) continue ; | ^~ | i main.cpp:49:26: error: 'it' was not declared in this scope; did you mean 'i'? 49 | sol[pers[i].poz]=it->second; | ^~ | i main.cpp:50:17: error: no matching function for call to 'std::multiset<std::pair<int, int> >::insert(<brace-enclosed initializer list>)' 50 | s.insert({pers[i].x,it->second}); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/set:62, from main.cpp:4: /usr/include/c++/12.2.1/bits/stl_multiset.h:552:9: note: candidate: 'template<class _InputIterator> void std::multiset<_Key, _Compare, _Alloc>::insert(_InputIterator, _InputIterator) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >]' 552 | insert(_InputIterator __first, _InputIterator __last) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:552:9: note: template argument deduction/substitution failed: main.cpp:50:17: note: candidate expects 2 arguments, 1 provided 50 | s.insert({pers[i].x,it->second}); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:503:7: note: candidate: 'std::multiset<_Key, _Compare, _Alloc>::iterator std::multiset<_Key, _Compare, _Alloc>::insert(const value_type&) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; value_type = std::pair<int, int>]' 503 | insert(const value_type& __x) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:503:32: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const std::multiset<std::pair<int, int> >::value_type&' {aka 'const std::pair<int, int>&'} 503 | insert(const value_type& __x) | ~~~~~~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:508:7: note: candidate: 'std::multiset<_Key, _Compare, _Alloc>::iterator std::multiset<_Key, _Compare, _Alloc>::insert(value_type&&) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; value_type = std::pair<int, int>]' 508 | insert(value_type&& __x) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:508:27: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::multiset<std::pair<int, int> >::value_type&&' {aka 'std::pair<int, int>&&'} 508 | insert(value_type&& __x) | ~~~~~~~~~~~~~^~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:533:7: note: candidate: 'std::multiset<_Key, _Compare, _Alloc>::iterator std::multiset<_Key, _Compare, _Alloc>::insert(const_iterator, const value_type&) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; const_iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; value_type = std::pair<int, int>]' 533 | insert(const_iterator __position, const value_type& __x) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:533:7: note: candidate expects 2 arguments, 1 provided /usr/include/c++/12.2.1/bits/stl_multiset.h:538:7: note: candidate: 'std::multiset<_Key, _Compare, _Alloc>::iterator std::multiset<_Key, _Compare, _Alloc>::insert(const_iterator, value_type&&) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; const_iterator = std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int> >, std::less<std::pair<int, int> >, std::allocator<std::pair<int, int> > >::const_iterator; value_type = std::pair<int, int>]' 538 | insert(const_iterator __position, value_type&& __x) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:538:7: note: candidate expects 2 arguments, 1 provided /usr/include/c++/12.2.1/bits/stl_multiset.h:564:7: note: candidate: 'void std::multiset<_Key, _Compare, _Alloc>::insert(std::initializer_list<_Tp>) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >]' 564 | insert(initializer_list<value_type> __l) | ^~~~~~ /usr/include/c++/12.2.1/bits/stl_multiset.h:564:43: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::initializer_list<std::pair<int, int> >' Non zero exit status: 1