delete node from linked list

To delete a node from a linked list in C++, you can follow these steps:

1. Start by creating a temporary pointer to store the current node's address, and initialize it with the head of the list.

2. If the node to be deleted is the head itself, update the head to point to the next node, and delete the current node.

3. If the node to be deleted is not the head, traverse the list using the temporary pointer until you find the node preceding the node to be deleted.

4. Update the next pointer of the preceding node to skip over the node to be deleted.

5. Delete the node from memory.

Here is an example of C++ code to delete a node from a singly linked list:

void deleteNode(Node* head, int key) {
    Node* temp = head;
    Node* prev = nullptr;

    if (temp != nullptr && temp->data == key) {
        head = temp->next;
        delete temp;
        return;
    }

    while (temp != nullptr && temp->data != key) {
        prev = temp;
        temp = temp->next;
    }

    if (temp == nullptr) {
        return;
    }

    prev->next = temp->next;
    delete temp;
}