Find a node with a given value in a singly linked list

This problem asks you to write a function that takes in the head node of a singly linked list and a value, and returns the node with the given value. If the value is not present in the linked list, return null.

Problem

```Write a function that takes in the head node of a singly linked list and a value, and returns the node with the given value. If the value is not present in the linked list, return null.
Example input:
1 -> 2 -> 3 -> 4 -> null
3
Example output:
3```

Solution

This solution is in Python. Our A.I. can create solutions in multiple languages.
by kayakane
```class Node:
def __init__(self, value):
self.value = value
self.next = None

def __init__(self):

new_node = Node(value)
return
while current_node.next is not None:
current_node = current_node.next
current_node.next = new_node

def print_list(self):
while current_node is not None:
print(current_node.value)
current_node = current_node.next

def find_node(self, value):
while current_node is not None:
if current_node.value == value:
return current_node
current_node = current_node.next
return None

In Python write the optimal solution for the problem below. Add a comment explaining the solution and why it is optimal.

Problem:
Write a function that takes in the head node of a singly linked list and a value, and returns the node with the given value. If the value is not present in the linked list, return null.
Example input:
1 -> 2 -> 3 -> 4 -> null
3
Example output:
3

```

A.I. Evaluation of the Solution

The candidate's solution correctly implements a function to find a node in a singly linked list by its value. The candidate's use of a while loop to iterate through the list is an efficient way to find the desired node. The candidate's solution is optimal in that it correctly implements the function and efficiently iterates through the list.

Evaluated at: 2022-11-18 08:16:10