harbingers.cpp: In function 'll query(int, ll)':
harbingers.cpp:102:73: error: no matching function for call to 'min(<brace-enclosed initializer list>)'
102 | return min({cht[u].eval(x), cht[P[u]].eval(x), cht[P[P[u]]].eval(x)});
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
from /usr/include/c++/10/ostream:38,
from /usr/include/c++/10/iostream:39,
from harbingers.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
230 | min(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: template argument deduction/substitution failed:
harbingers.cpp:102:73: note: candidate expects 2 arguments, 1 provided
102 | return min({cht[u].eval(x), cht[P[u]].eval(x), cht[P[P[u]]].eval(x)});
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
from /usr/include/c++/10/ostream:38,
from /usr/include/c++/10/iostream:39,
from harbingers.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
278 | min(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: template argument deduction/substitution failed:
harbingers.cpp:102:73: note: candidate expects 3 arguments, 1 provided
102 | return min({cht[u].eval(x), cht[P[u]].eval(x), cht[P[P[u]]].eval(x)});
| ^