Std::queue

#include <iostream>
#include <stack>
#include <queue>
#include <string>
#include <algorithm>
bool is_palindrome(const std::string &s){
    std::stack<char> LIFO;
    std::queue<char> FIFO;
    for(auto &c: s){
        if(std::isalpha(c)){

            LIFO.push(std::toupper(c));
            FIFO.push(std::toupper(c));
        }
    }
    bool ans;
    while( (LIFO.size() && FIFO.size()) != 0){
        ans = (LIFO.top() == FIFO.front());
        if(!ans){
            return ans;
        }
        LIFO.pop(),FIFO.pop();
    }
    return true ;
}



int main() {
    try{
        std::string s ;
        std::cout << "Enter a string" << std::endl;
        std::cin >> s;
        std::cout << std::boolalpha << is_palindrome( s) << std::endl;
    }catch(std::exception &e){
     std::cout << e.what() << std::endl;
    }

    return 0;
}

Similar codes

0 vote201 views1 answer
Arraylist equivalent cpp
C++
0 vote222 views1 answer
Decimal to binary gfg
C++
0 vote210 views1 answer
ALO
C++
4 votes192 views3 answers
C plus
C++
0 vote229 views1 answer
Warning: base will be initialized after
C++
7 votes175 views1 answer
C++ create class from class name
C++
3 votes164 views2 answers
C++ read text file
C++
1 vote202 views1 answer
Include spaces while reading strings in cpp
C++
0 vote195 views1 answer
Cpp convert vector to set
C++
0 vote196 views1 answer
Intlen in c++
C++