Vehicle Description

While Loop: The loop continues until both linked lists are fully traversed and there is no carry left. The sum of the current digits from l1 and l2, along with the carry, is calculated. The carry for the next iteration is determined by integer division of the sum by 10. The current digit to be added to the result is obtained by taking the sum modulo 10. A new node is created with the current digit and added to the result linked list. The pointers for l1 and l2 are moved to the next nodes. Return Statement: The method returns result.next, which points to the head of the newly created linked list (skipping the initial dummy node).