What’s the err here??

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
const double pi = 3.14;
double radius;

//your code goes here
radius = Console.ReadLine();
Console.WriteLine({0} * {1} ** 2, pi, radius);
}
}
}

Answer 1

C# doesn't have the exponentiation operator (**). And I'd recommend you to revisit output formatting in C#.

https://code.sololearn.com/ct0WU37Xw8k0/?ref=app