Question

A palindrome is a number or a text phrase that reads the same backward as forward. For example, each of the following six-digit integers is a palindrome: 123321, 555555, 455554, and 116611. Write a pseudocode and C++ program that reads in a six-digit integer and determines whether or not it is a palindrome. You must use the division and remainder operators. Assume input is correct (six-digit integer).

Please don't use loops. Do it with only using if else.

Answer 1

#include <iostream>
using namespace std;

int positive_int_reverse(int n){
   int result = 0;
   while(n>0){
      result *= 10;
      result += (n%10);
      n /= 10;
   }
   return result;
}

int main(){
   int n;
   cout<<"Enter a six-digit integer: ";
   cin>>n;
   if(n==positive_int_reverse(n))
      cout<<n<<" is a palindrome"<<endl;
   else
      cout<<n<<" is not a palindrome"<<endl;
   return 0;
}