I want someone to explain to me step by step

Question

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

namespace SoloLearn
{
class Program
{
static int Pow(int x, int y=2)
{
int result = 1;
for (int i = 0; i < y; i++)
{
result *= x;
}
return result;
}
static void Main(string[] args)
{
Console.WriteLine(Pow(6));

Console.WriteLine(Pow(3, 4));
}
}
}

Answer 1

static int Pow(int x, int y=2) // y=2 here 2 default argument value for y. If you don't pass value as parameter in calling statement then y value taken as 2
{
// loop runs from I=0 to you so y times it runs and find result = 1*x*x*x*...*x ( y times)

int result = 1;
for (int i = 0; i < y; i++)
{
result *= x;
}
return result;
}
static void Main(string[] args)
{
Console.WriteLine(Pow(6)); // passing x value as 6 but no y value so y value is 2 default.
It returned value = 1*6*6=36

Console.WriteLine(Pow(3, 4)); // here passing both values so x=3, y = 4. It gets return value as 1*3*3*3*3= 81
1 is default value for result variable.

Hope it helps...