/usr/include/c++/10.2.0/bits/stl_map.h: В конкретизации «void std::map<_Key, _Tp, _Compare, _Alloc>::insert(_InputIterator, _InputIterator) [с _InputIterator = int; _Key = int; _Tp = int; _Compare = std::less<int>; _Alloc = std::allocator<std::pair<const int, int> >]»:
lab2.cpp:75:42: required from here
/usr/include/c++/10.2.0/bits/stl_map.h:894:31: ошибка: no matching function for call to «std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int> >, std::less<int>, std::allocator<std::pair<const int, int> > >::_M_insert_range_unique(int&, int&)»
894 | { _M_t._M_insert_range_unique(__first, __last); }
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~