Problem	bracketex
User	Henries
Submission Time	2024-06-22 16:28:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

bracketex.cpp: In function ‘int main()’:
bracketex.cpp:19:23: error: invalid operands of types ‘void’ and ‘__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type’ {aka ‘char’} to binary ‘operator!=’
19 | if (vec.pop_back()!= a[i]){