Question

How to check whether a number is palindrome or not in C++

Answer 1

#include <iostream>

bool isPalindrome(int n) {
    int reverse = 0, temp = n;    
          
    while (temp != 0) {    
        int remainder = temp % 10; 
        reverse = (reverse * 10) + remainder;    
        temp = temp / 10;    
    }    
    
    return n == reverse;   
}
 
int main() {
    int n = 12321;
   
    if (isPalindrome(n))    
        std::cout << "Palindrome";    
    else  
        std::cout << "Not palindrome";  
}
 
 
 
 
/*
run:
 
Palindrome
 
*/

 

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