1. Program to check if a given number is a palindrome.
#include <iostream.h>
#include <conio.h>
int main() {
int n, reversed = 0, remainder, original;
cout << "Enter an integer: ";
cin >> n;
original = n;
while (n != 0) {
remainder = n % 10;
reversed = reversed * 10 + remainder;
n /= 10;
}
if (original == reversed)
cout << original << " is a palindrome.\n";
else
cout << original << " is not a palindrome.\n";
getch();
return 0;
}