Kth element from the last in linked list

#1

I am getting wrong answer in one of the test cases.
Approach that i used was, i took two pointers fast and slow. I move fast k steps first and then i moved both slow and fast simultaneously by one step. As fast or fast->next reaches null, slow will point to the Kth element from the last.

#2

Hi Kishan,
Your approach seems correct. You may have missed some corner case.
Please share your code using ide.codingblocks.com .

#3
#4

Updated Code - https://ide.codingblocks.com/s/97807

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