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

25 votes330 views5 answers
Sort vector in descending order c++
C++
0 vote351 views1 answer
Cpp gui
C++
0 vote350 views1 answer
Wap in c++ to understand function template
C++
-1 vote347 views1 answer
#include using namespace std; int main() { double leashamt,collaramt,foodamt,totamt; cout<<"Enter the amount spent for a leash : ";
C++
0 vote306 views1 answer
How to download c++ portable compiler
C++
0 vote338 views1 answer
How to add external library in clion
C++
0 vote369 views1 answer
Exit: redefinition; '__declspec(noreturn)' or '[[noreturn]]'
C++
4 votes327 views2 answers
Max value of double c++
C++
0 vote338 views1 answer
#include <iostream> using namespace std; int main(){ int sum1 = 100+50; int sum2 = sum1+250; int sum3 = sum2+sum2; cout<< sum1 << "\n"; cout<< sum2 << "\n"; cout<< sum3 << "\n";
C++
0 vote330 views1 answer
Ue4 execute delegate from blueprint
C++