2. Add Two Numbers — digits stored in reverse order.

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Same file as in the repo · ~20s timeout

From file header (JSDoc)

2. Add Two Numbers — digits stored in reverse order.
@param {import('../../lib/list-node.js').ListNode | null} l1
@param {import('../../lib/list-node.js').ListNode | null} l2
@returns {import('../../lib/list-node.js').ListNode | null}