Problem	lvm
User	chickennn
Submission Time	2026-08-22 19:53:19
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lvm.cpp: In function ‘int main()’:
lvm.cpp:15:17: error: ‘class std::vector<int>’ has no member named ‘pushback’; did you mean ‘push_back’?
15 | reg.pushback(vec.back());
| ^~~~~~~~
| push_back
lvm.cpp:16:17: error: invalid use of non-static member function ‘void std::vector<_Tp, _Alloc>::pop_back() [with _Tp = int; _Alloc = std::allocator<int>]’
16 | vec.pop_back;
| ~~~~^~~~~~~~
In file included from /usr/include/c++/9/vector:67,
from /usr/include/c++/9/functional:62,
from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/9/algorithm:71,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
from lvm.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:1222:7: note: declared here
1222 | pop_back() _GLIBCXX_NOEXCEPT
|