Expert Answer
To trace the recursive circularly singly linked list method mystery, we will follow the provided code and fill in the table accordingly. Here's the initial state of the table:ow, let's go through each step of the mystery method and update the table accordingly:Since curr (head.next) is not equal to head, we move to the next step.The data in the current node (curr.data) is odd, so we skip the if condition and move to the next step.The current node's data is odd, so we call mystery recursively with curr.next and temp + 1 as arguments. The returned value is not important, so we skip it for now and move to the next step.We return temp + 1, which means the updated value of temp is 8.We assign the returned value (8) to the current node's data (curr.data).We return the result of another recursive call to mystery with curr.next and temp + 1 as arguments. The returned value is not important, so we skip it for now and move to the next step.We return temp - 1, which means the updated value of temp is 7.We assign the returned value (7) to the current node's data (curr.data).Since curr (head.next) is not equal to head, we move to the next step.The data in the current node (curr.data) is odd, so we skip the if condition and move to the next step.The current node's data is odd, so we call mystery recursively with curr.next and temp + 1 as arguments. The returned value is not important, so we skip it for now and move to the next step.We return temp + 1, which means the updated value of temp is 8.We assign the returned value (8) to the current node's data (curr.data).We return the result of another recursive call to mystery with curr.next and temp + 1 as arguments. The returned value is not important, so we skip it for now and move to the next step.We return temp - 1, which means the updated value of temp is 7.We assign the returned value (7) to the current node's data (curr.data).Since curr (head.next) is equal to head, we return the value of temp, which is 7.The final state of the table:Finally, based on the updated values in the table, we can construct the linked list with the final state: