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Count the number of nodes in a list
Q:

Count the number of nodes in a list

mahmoud2506
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2022-04-28
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Count the number of nodes in a list.
ListNode API methods: node.next().

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mahmoud2506
2022-04-28
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public Integer count(ListNode node) {
int count = 0;
ListNode current = node;
while (current != null) {
    count++;
    current = current.next();
}
return count;
}

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