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SinglyLinkedListNode* insertNodeAtHead(SinglyLinkedListNode* head, int val) { SinglyLinkedListNode* temp = new SinglyLinkedListNode(val); temp->next = head; return temp; }
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Insert a node at the head of a linked list
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SinglyLinkedListNode* insertNodeAtHead(SinglyLinkedListNode* head, int val) { SinglyLinkedListNode* temp = new SinglyLinkedListNode(val); temp->next = head; return temp; }