é palíndrom
#include <iostream>
#include <deque>
bool is_palindrome(const std::string &s){
if(s.size() == 1 ) return true;
std::deque<char> d ;
for(char i : s){
if(std::isalpha(i)){
d.emplace_back( toupper(i) );
}
}
auto front = d.begin();
auto back = d.rbegin();
while( (front != d.end()) || (back != d.rend())){
bool ans = (*front == *back);
if(!ans){
return ans;
}
++front;++back;
}
return true;
}
int main() {
std::string s = "A man, a plan, a cat, a ham, a yak, a yam, a hat, a canal-Panama!";
std::cout << std::boolalpha << is_palindrome(s) << std::endl;
return 0;
}
Mero