Answer
See the explanation
Work Step by Step
To design a function to find the Kth element in a singly linked list with \( n \) elements, you can follow these steps in Python:
```python
class ListNode:
def __init__(self, val=0, next=None):
self.val = val
self.next = next
def findKthElement(head, k):
if not head:
return None
current = head
count = 0
while current:
count += 1
if count == k:
return current.val
current = current.next
return None
```
This function takes the head of the linked list and the value of \( k \) as input parameters. It then traverses the linked list until it reaches the \( k \)th node, returning the value of that node. If the \( k \)th element is not found, it returns None.