how to check if given string is not palindrome code example
Example 1: determine whether integer is a palindrome
public class Solution {
public bool IsPalindrome(int x) {
if(x < 0 || (x % 10 == 0 && x != 0)) {
return false;
}
int revertedNumber = 0;
while(x > revertedNumber) {
revertedNumber = revertedNumber * 10 + x % 10;
x /= 10;
}
return x == revertedNumber || x == revertedNumber/10;
}
}
Example 2: reads the string in then determines if the string is a palindrome.
#include <iostream>
using namespace std;
bool isPalindrome(string str, int low, int high)
{
if (low >= high)
return true;
if (str[low] != str[high])
return false;
return isPalindrome(str, low + 1, high - 1);
}
int main()
{
string str = "XYBYBYX";
int len = str.length();
if (isPalindrome(str, 0, len - 1))
cout << "Palindrome";
else
cout << "Not Palindrome";
return 0;
}