Is palindrom

#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;
}

Similar codes

0 vote176 views1 answer
If argv == string
C++
5 votes749 views1 answer
Exit() in c++
C++
6 votes202 views2 answers
Precision c++
C++
0 vote207 views1 answer
Comment installer boost c++ sur windows
C++
32 votes202 views3 answers
Remove specific element from vector c++
C++
0 vote214 views1 answer
For loop in c++ hackerrank solution
C++
3 votes196 views1 answer
What language was c+ written in
C++
3 votes180 views3 answers
Quick sort c++
C++
0 vote212 views1 answer
Polycarp found a rectangular table consisting of n rows and m columns. He noticed that each cell of the table has its number, obtained by the following algorithm "by columns": codeforces solution
C++
0 vote160 views1 answer
#pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops")
C++