Problem	bracketex
User	AndyChen
Submission Time	2026-08-14 15:13:54
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

bracketex.cpp: In function ‘int amin()’:
bracketex.cpp:14:21: error: no matching function for call to ‘std::stack<char>::push(std::stack<char>&)’
14 | a.push(a);
| ^
In file included from /usr/include/c++/9/stack:61,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:89,
from bracketex.cpp:1:
/usr/include/c++/9/bits/stl_stack.h:233:7: note: candidate: ‘void std::stack<_Tp, _Sequence>::push(const value_type&) [with _Tp = char; _Sequence = std::deque<char, std::allocator<char> >; std::stack<_Tp, _Sequence>::value_type = char]’
233 | push(const value_type& __x)
| ^~~~
/usr/include/c++/9/bits/stl_stack.h:233:30: note: no known conversion for argument 1 from ‘std::stack<char>’ to ‘const value_type&’ {aka ‘const char&’}
233 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/includ