Problem	wv
User	thatlycheeoolongdrink
Submission Time	2025-06-18 13:10:43
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

wv.cpp: In function ‘int main()’:
wv.cpp:9:11: error: no match for ‘operator==’ (operand types are ‘__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type’ {aka ‘char’} and ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’})
9 | if (s[i]==f) {
In file included from /usr/include/c++/9/regex:62,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:110,
from wv.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:
wv.cpp:9:13: note: mismatched types ‘const std::__cxx11::sub_match<_BiIter>’ and ‘__gnu