using System;

​

namespace InterviewSimpleSharp20220124

{

    /// <summary>

    /// Write a GetNearestValue method that will return the number nearest to the input value

    /// Look for the nearest number in the given array: { 1, 5, 3, 9, 12, 56, 34, 32, 12, 45, 31 }

    /// 

    /// Sample input #1:  8

    /// Sample output #1: 9

    ///

    /// Sample input #2:  2

    /// Sample output #2: 1 or 3 (allowed to return either of the numbers)

    /// </summary>

    public static class Program

    {

        /// <summary>

        /// A test array to look values in

        /// </summary>

        /// <remarks>Do not modify the array</remarks>

        private static readonly int[] TestArray = { 1, 5, 3, 9, 12, 56, 34, 32, 12, 45, 31 };

​

        /// <summary>

        /// Returns the nearest to the <paramref name="inputValue"/> value from <see cref="TestArray"/>

        /// </summary>

        /// <param name="inputValue">Input value to find nearest value for</param>

        /// <returns>Value from <see cref="TestArray"/> that is nearest to <paramref name="inputValue"/></returns>

        private static int GetNearestValue(int inputValue)

        {

            int result = 0;

​

            result = TestArray[0];

int difference = Math.Abs (inputValue-TestArray [0]);

for (int i = 1; i < 11; i++)

{

if (Math.Abs (inputValue-TestArray [i]) < difference)

{

result = TestArray[i];

difference = Math.Abs (inputValue-TestArray [i]);

}

}

​

            return result;

        }

​

        /// <summary>

        /// Entry point

        /// </summary>

        public static void Main()

        {

            int inputValue = Convert.ToInt32(Console.ReadLine());

​

            int nearestValue = GetNearestValue(inputValue);

​

            Console.WriteLine(nearestValue);

        }

    }

}

​