Here is a step-by-step solution in Python:

1. First, we need to define a class for the Node of the linked list.

```python
class Node:
def __init__(self, data=None):
self.data = data
self.next = None
```

2. Then, we define a class for the linked list itself, with methods to add nodes and remove the middle node.

```python
class LinkedList:
def __init__(self):
self.head = None

def add_node(self, data):
if not self.head:
self.head = Node(data)
else:
cur = self.head
while cur.next:
cur = cur.next
cur.next = Node(data)

def remove_middle(self):
slow = self.head
fast = self.head
prev = None

while fast and fast.next:
fast = fast.next.next
prev = slow
slow = slow.next

if prev:
prev.next = slow.next
```

3. Now, we can create a linked list, add nodes to it, and remove the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

ll.remove_middle()
```

4. To print the linked list before and after removing the middle node, we can add a method to the LinkedList class.

```python
def print_list(self):
cur = self.head
while cur:
print(cur.data, end=' ')
cur = cur.next
print()
```

5. Now, we can print the linked list before and after removing the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

print("Original list: ", end='')
ll.print_list()

ll.remove_middle()

print("List after deleting middle node: ", end='')
ll.print_list()
```

This will output:

```
Original list: 5 4 3 2 1
List after deleting middle node: 5 4 2 1
```

Question

Here is a step-by-step solution in Python:

1. First, we need to define a class for the Node of the linked list.

```python
class Node:
    def __init__(self, data=None):
        self.data = data
        self.next = None
```

2. Then, we define a class for the linked list itself, with methods to add nodes and remove the middle node.

```python
class LinkedList:
    def __init__(self):
        self.head = None

def add_node(self, data):
        if not self.head:
            self.head = Node(data)
        else:
            cur = self.head
            while cur.next:
                cur = cur.next
            cur.next = Node(data)

def remove_middle(self):
        slow = self.head
        fast = self.head
        prev = None

while fast and fast.next:
            fast = fast.next.next
            prev = slow
            slow = slow.next

if prev:
            prev.next = slow.next
```

3. Now, we can create a linked list, add nodes to it, and remove the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

ll.remove_middle()
```

4. To print the linked list before and after removing the middle node, we can add a method to the LinkedList class.

```python
def print_list(self):
    cur = self.head
    while cur:
        print(cur.data, end=' ')
        cur = cur.next
    print()
```

5. Now, we can print the linked list before and after removing the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

print("Original list: ", end='')
ll.print_list()

ll.remove_middle()

print("List after deleting middle node: ", end='')
ll.print_list()
```

This will output:

```
Original list: 5 4 3 2 1 
List after deleting middle node: 5 4 2 1 
```

Knowee AI · Accepted Answer

Here is a step-by-step solution in Python:

1. First, we need to define a class for the Node of the linked list.

```python
class Node:
    def __init__(self, data=None):
        self.data = data
        self.next = None
```

2. Then, we define a class for the linked list itself, with methods to add nodes and remove the middle node.

```python
class LinkedList:
    def __init__(self):
        self.head = None

def add_node(self, data):
        if not self.head:
            self.head = Node(data)
        else:
            cur = self.head
            while cur.next:
                cur = cur.next
            cur.next = Node(data)

def remove_middle(self):
        slow = self.head
        fast = self.head
        prev = None

while fast and fast.next:
            fast = fast.next.next
            prev = slow
            slow = slow.next

if prev:
            prev.next = slow.next
```

3. Now, we can create a linked list, add nodes to it, and remove the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

ll.remove_middle()
```

4. To print the linked list before and after removing the middle node, we can add a method to the LinkedList class.

```python
def print_list(self):
    cur = self.head
    while cur:
        print(cur.data, end=' ')
        cur = cur.next
    print()
```

5. Now, we can print the linked list before and after removing the middle node.

```python
ll = LinkedList()
ll.add_node(5)
ll.add_node(4)
ll.add_node(3)
ll.add_node(2)
ll.add_node(1)

print("Original list: ", end='')
ll.print_list()

ll.remove_middle()

print("List after deleting middle node: ", end='')
ll.print_list()
```

This will output:

```
Original list: 5 4 3 2 1 
List after deleting middle node: 5 4 2 1 
```

Question

Solution

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