Palindrome Checker

C++ Palindrome Checker:

#include <iostream>
#include <string>
#include <algorithm>

bool isPalindrome(const std::string &str) {
    std::string temp = str;
    std::transform(temp.begin(), temp.end(), temp.begin(), ::tolower);
    temp.erase(std::remove_if(temp.begin(), temp.end(), ::isspace), temp.end());
    std::string reversed = temp;
    std::reverse(reversed.begin(), reversed.end());
    return temp == reversed;
}

int main() {
    std::string input;
    std::cout << "Enter a string: ";
    std::getline(std::cin, input);
    if (isPalindrome(input)) {
        std::cout << input << " is a palindrome." << std::endl;
    } else {
        std::cout << input << " is not a palindrome." << std::endl;
    }
    return 0;
}

1. Include Necessary Libraries:

2. The code includes the necessary C++ standard libraries for input/output and string manipulation.

3. Define isPalindrome Function:

4. A function named isPalindrome is defined, which takes a constant reference to a string as a parameter and returns a boolean value.

5. Convert String to Lowercase:

6. The input string is copied to a temporary string, and then transformed to lowercase using the std::transform function.

7. Remove Whitespaces:

8. Whitespaces are removed from the temporary string using the std::remove_if and erase functions.

9. Reverse the String:

10. The reversed version of the temporary string is obtained using the std::reverse function.

11. Check for Palindrome:

12. The original temporary string is compared with the reversed string, and a boolean result is returned based on whether they are equal.

13. Main Function:

14. The main function reads a string input from the user, calls the isPalindrome function, and prints the result based on the returned boolean value.