i.e Users has to give the rows values that means if some users give value 5 then the length of the pyramid will be of five.
As given in the output i have given the row value 10.
In this case we have 3 loops to be performed :
1) for let knowing which row is to b printed.
2) for printing the spaces between each stars "*"
3) for printing the stars in output "*"
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace PostslushDemo
{
class Program
{
public static void print(int no)
{
for (int i = 1; i <= no; i++)
{
for (int j = i; j <= no; j++)
{
Console.Write(" ");
}
for (int k = 1; k <= 2 * i - 1; k++)
{
Console.Write("*" + " ");
}
Console.WriteLine();
}
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Enter the number of rows for the output");
int r = Convert.ToInt32(Console.ReadLine());
print(r);
}
}
}
Output : 
