# Create a sample linked list: 1 -> 2 -> 3 -> 4 -> 5 head = Node(1) head.next = Node(2) head.next.next = Node(3) head.next.next.next = Node(4) head.next.next.next.next = Node(5)
def find_middle_element(head): slow = head fast = head
print(count_pairs_with_sum([1, 2, 3, 4, 5], 7)) # Output: 2 Tcs Coding Questions 2021
Example: Input - [-2, 1, -3, 4, -1, 2, 1, -5, 4], Output - 6
Example: Input - "aabbc", Output - "c"
Given a linked list, find the middle element.
print(first_non_repeating_char("aabbc")) # Output: "c" # Create a sample linked list: 1 ->
print(find_middle_element(head)) # Output: 3