Program 20TH in C++

PROBLEM STATEMENT :

Check whether an integer is a palindrome.

SOLUTION :

#include

#include

using namespace std;

int main()

{

int num;

cout<<"Enter a number to check if its a palindrome : ";

cin>>num;

int div=10;

int x;

int q;

int r;

if(num <0)

{

cout<<"\n\nNot a Palindrome\n\n";

exit(0);

}

while(num/div >=10)

{

div*=10;

}

while(num != 0)

{

q=num/div;

r=num%10;

if( q != r )

{

cout<<"\n\nNot a palindrome\n\n";

exit(0);

}

else

{

num=(num%div)/10;

div /= 100;

}

}

cout<<"\n\nA Palindrome\n\n";

}