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coding-quiz-3

---
id: coding-quiz-3
title: Coding Quiz - Check for Value Existence
description: Write a function to check the existence of a specific data element within a linked list.
tags:
  - Python
  - Algorithm
  - Search
  - Linked List
sidebar_position: 6
isPublic: false
---

# Coding Quiz - Check for Value Existence

In this coding quiz, your task is to convert a given list `data` into a Singly Linked List and then write a function to verify if a specific value `target` exists within the linked list.

The function should accept two arguments: a list of integers `data`, and the target value `target` you are looking for.

After constructing the linked list, the function should return `True` if the `target` value is found within the list and `False` if it is not.

<br />

```python title="Write Code"
class ListNode:
    def __init__(self, value=0, next=None):
        self.value = value
        self.next = next

    def append(self, value):
        if self.next is None:
            self.next = ListNode(value)
        else:
            self.next.append(value)

def solution(data, target):
    # Write your code here
    return


Constraints​

  • The data list consists of integers.

  • target is a single integer.



Example Input/Output​

  • Input: data = [1, 2, 4, 5], target = 3

  • Output: False


  • Input: data = [7, 8, 9], target = 7

  • Output: True

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