Answer / Mukesh Kumar Prajapat

First, you should define a structure for the node. Here's an example:nn```cnstruct Node {n int data;n struct Node *next;n};n```nTo create a new node, allocate memory and initialize its fields.nn```cnstruct Node* createNode(int data) {n struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));n newNode->data = data;n newNode->next = NULL;n return newNode;n}n```nTo create a duplicate link list, traverse the original list and create new nodes with the same data.nn```cnvoid duplicateList(struct Node* head) {n struct Node *current = head, *newHead = NULL, *newCurrent;nn while (current != NULL) {n newCurrent = createNode(current->data);n if (newHead == NULL) {n newHead = newCurrent;n newCurrent->next = NULL;n } else {n newCurrent->next = newHead->next;n newHead->next = newCurrent;n }n current = current->next;n }n}n```

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