using System;

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public class Program

{

    public static void Main(string[] args)

    {

        int number;

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        int[] vectorNumbers = new int[10];

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        for (int i = 0; i < 10; i++)

        { //one for loop, will be performed 10 times

            Console.WriteLine("Enter a number");

            string inputData = Console.ReadLine();

            if (int.TryParse(inputData, out number))

            { //it validates if the input is a number,, if not, it will ask again.

                vectorNumbers[i] = number;

            }

        }

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        Console.WriteLine("All numbers were loaded");

        int randomNumber = RandomNumber();

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        Console.WriteLine("Random number: " + randomNumber);

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        if (contains(vectorNumbers, randomNumber))

        {

            Console.WriteLine("The random number is in the vector. You won the game: D");

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        }

        else

        {

            Console.WriteLine("The random number is NOT in the vector so you lost the game :(");

        }

    }

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    private static int RandomNumber()

    { //it gives a random number between 0 and 1000.

        Random random = new Random();

        return random.Next(1000);

    }

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    private static bool contains(int[] vectorNumbers, int randomNumber)

    { //asks if random number exists in vector number and random number is just a random number.

        for (int i = 0; i < 5; i++)

        {

            int result = vectorNumbers[i].CompareTo(randomNumber); //this to see if the vector number and random number match

            if (result == 0) return true;

        }

        return false; //if the user did not select the random number.

    }

}

​