P6 To find whether the given number is a perfect square or not

    class Program

    {

        static void Main(string[] args)

        {

            int n;

            bool flag = false;

            Console.Write("Enter the number : ");

            n = int.Parse(Console.ReadLine());

            for (int i = 0; i < n / 2; i++)

            {

                if ((i * i) == n)

                {

                    flag = true;

                }

            }

            if (flag)

            {

                Console.WriteLine(n + " is a perfect square");

            }

            else

            {

                Console.WriteLine(n + " is not a perfect square");

            }

            Console.ReadLine();

        }

    }

Output 1 :

Output 2 :