Given a linked list handling string data, write a function to check whether the data forms a palindrom or not
The string represented in above list is a palindrome
In the above example we can see that the string “bacdcab” is a palindrome
1. Construct a string from the data in all nodes in the linked list ie, use append() function
2. Traverse the string and compare respective first and last character ie, str[i] = str[length-i-1].If they are not equal, then it is not a palindrome.