Linked list of strings forms a palindrome | Problem of the Day | GeeksForGeeks

Given a linked list with string data, check whether the combined string formed is palindrome. If the combined string is palindrome then return true otherwise return false.
Example:
Input:
Output : true
Explanation: As string "abcddcba" is palindrome the function should return true.
Input:
Output : false
Explanation: As string "abcdba" is not palindrome the function should return false.
Expected Time Complexity: O(n)
Expected Auxiliary Space: O(n)

[@mathematics3398]

def compute(head):
string = ""
while head:
string += head.data
head = head.next
i = 0
j = len(string) - 1
while i < j:
if string[i] != string[j]:
return False
i += 1
j -= 1
return True

[@mathematics3398]

class Solution {
public:
bool compute(Node* head) {
string str = "";
while (head) {
str += head->data;
head = head->next;
}
for (int i = 0, j = str.length() - 1; i < j; i++, j--) {
if (str[i] != str[j])
return false;
}
return true;
}
};