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Given a singly linked list. The task is to find the length of the linked list, where length is defined as the number of nodes in the linked list.

**Example 1:**

Input:LinkedList: 1->2->3->4->5Output:5Explanation:Count of nodes in the linked list is 5, which is its length.

**Example 2:**

Input:LinkedList: 2->4->6->7->5->1->0Output:7Explanation:Count of nodes in the linked list is 7. Hence, the output is 7.

**Your Task:**

Your task is to complete the given function **getCount**(), which takes a head reference as an argument and should return the length of the linked list.

**Expected Time Complexity** : O(N)

**Expected Auxilliary Space** : O(1)

**Constraints:**

1 <= N <= 10^{5}

1 <= value <= 10^{3}

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Count nodes of linked list

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