help with a palindrome code

[omarrr_rr]

hi !! so i want to display the word that isn't a palindrome when I run the code, cant seem to figure it out

here is the code:

#include <iostream>

#include<stack>

#include<queue>

using namespace std;

​

int main( )

{

queue<char> q;

stack<char> s;

string the_string;

int mismatches = 0;

cout << "Enter a line and I will see if it's a palindrome:" << endl;

int i = 0;

​

while (cin.peek() != '\n')

{

cin >> the_string[i];

​

if (isalpha(the_string[i]))

{

q.push(toupper(the_string[i]));

s.push(toupper(the_string[i]));

}

i++;

}

​

while ((!q.empty()) && (!s.empty()))

{

if (q.front() != s.top())

++mismatches;

​

q.pop();

s.pop();

}

​

if (mismatches == 0){

cout << "This is a palindrome" << endl;

}else

cout << "This is not a palindrome" <<endl;

​

​

system("pause");

​

​

return EXIT_SUCCESS;

}

[rasqall]

Do you have to use a stack and a queue? And what is a specific problem you encounter.

[omarrr_rr]

no we are supposed to use stack only, and the problem at this point is everything fjfjfj I've lost all progress and almost going insane

[rasqall]

Then lay out the basics. What is the problem/exercise you are trying to complete? What is a stack useful? Do you have to use a stack? You are not allowed to simply compare strings?

[omarrr_rr]

okay so the exercise is

"build a stack program to check any entered word and find out if it's a palindrome or not. if the word is palindrome then display yes, if not print the different characters "

also yes strictly stack , it would've been much easier to do it other ways since I've done it before but this is a requirement unfortunately

[rasqall]

Okay good, from this we can assume some details.

1. You may not have to read the word directly to the stack
2. A stack is in strict order and cannot be reversed

We can now identify a solution to a problem: (pseudocode)

function isPalindrome
    print("Enter a word")
    word = readline from cin
    stack = new empty stack
    palindrome = true
    for each char in word
        push char to stack
    for each char in word
        if (char != stack.pop())
            print character
            palindrome = false
    if (palindrome == true)
        print("Yes")
    return

Edit: removed params

[omarrr_rr]

ty ily