Problem	segmenttree
User	YSH2020
Submission Time	2025-03-03 12:49:48
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

segmenttree.cpp: In member function ‘int node::rmq(int, int)’:
segmenttree.cpp:13:10: error: no match for ‘operator==’ (operand types are ‘node’ and ‘std::nullptr_t’)
13 | if (*l == nullptr) create();
| ~~~^~~~~~~~~~
In file included from /usr/include/c++/9/regex:62,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:110,
from segmenttree.cpp:1:
/usr/include/c++/9/bits/regex.h:1026:5: note: candidate: ‘template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)’
1026 | operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
| ^~~~~~~~
/usr/include/c++/9/bits/regex.h:1026:5: note: template argument deduction/substitution failed:
segmenttree.cpp:13:13: note: ‘node’ is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
13 | if (*l == null