Let's write code to check whether the array contains duplicate values. Now call this function from the main function. Output :

Products

Data Converter Cleaner TUC - Unit Converter Import Export Survey Manager Tweet Controller

Developer

Article Blog Forum Interview Beginner News Startup Quiz

Users

Career

Apply Job Internship

Pricing

Contain Duplicate

Steilla Mitchel 1115 12 Jun 2024

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.

1 Answers

Ravi Vishwakarma 12 Jun 2024

Let's write code to check whether the array contains duplicate values.

// Method to determine if the array contains any duplicates
public static bool ContainsDuplicate(int[] nums)
{
    // Create a list to keep track of the elements we have seen
    IList<int> list = new List<int>();

    // Iterate through each element in the array
    foreach (var item in nums)
    {
        // Check if the current element already exists in the list
        if (list.Contains(item))
        {
            // If it does, return true indicating a duplicate is found
            return true;
        }
        else
        {
            // If it doesn't, add the element to the list
            list.Add(item);
        }
    }

    // If no duplicates are found after checking all elements, return false
    return false;
}

Now call this function from the main function.

    public class Program
    {
        public static void Main()
        {
            IList<int[]> list = new List<int[]>
            {
                new int[] { 1, 2, 3, 1 },
                new int[] { 1, 2, 3, 4 },
                new int[] { 1, 1, 1, 3, 3, 4, 3, 2, 4, 2 }
            };

            foreach (var item in list)
            {
                Console.WriteLine(item + " " + Program.ContainsDuplicate(item));
            }

            Console.ReadLine();
        }
    }

Output :

System.Int32[] True
System.Int32[] False
System.Int32[] True

Markdown for AI

A clean, structured version of this page for AI assistants and LLMs.

Open .md

forum

Contain Duplicate

Can you answer this question?

1 Answers