Compilare: In file included from /usr/include/c++/12.2.1/bits/stl_iterator.h:85, from /usr/include/c++/12.2.1/bits/stl_algobase.h:67, from /usr/include/c++/12.2.1/bits/specfun.h:45, from /usr/include/c++/12.2.1/cmath:1935, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:41, from main.cpp:1: In function 'constexpr decltype (::new(void*(0)) _Tp) std::construct_at(_Tp*, _Args&& ...) [with _Tp = st; _Args = {st}]', inlined from 'static constexpr void std::allocator_traits<std::allocator<_CharT> >::construct(allocator_type&, _Up*, _Args&& ...) [with _Up = st; _Args = {st}; _Tp = st]' at /usr/include/c++/12.2.1/bits/alloc_traits.h:518:21, inlined from 'void std::deque<_Tp, _Alloc>::_M_push_back_aux(_Args&& ...) [with _Args = {st}; _Tp = st; _Alloc = std::allocator<st>]' at /usr/include/c++/12.2.1/bits/deque.tcc:501:30, inlined from 'std::deque<_Tp, _Alloc>::reference std::deque<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {st}; _Tp = st; _Alloc = std::allocator<st>]' at /usr/include/c++/12.2.1/bits/deque.tcc:176:20, inlined from 'void std::deque<_Tp, _Alloc>::push_back(value_type&&) [with _Tp = st; _Alloc = std::allocator<st>]' at /usr/include/c++/12.2.1/bits/stl_deque.h:1554:21, inlined from 'int main()' at main.cpp:103:40: /usr/include/c++/12.2.1/bits/stl_construct.h:97:73: warning: 'where' may be used uninitialized [-Wmaybe-uninitialized] 97 | { return ::new((void*)__location) _Tp(std::forward<_Args>(__args)...); } | ^ main.cpp: In function 'int main()': main.cpp:90:36: note: 'where' was declared here 90 | bool ok = false, final_ok; int where; | ^~~~~