Sarim Qasmi Sarim Qasmi - 3 months ago 11
C# Question

triangle paramid using for loop in C#

i can't solve my triangle program in school , it is printing one sided curve by this program
using System;

namespace starpyramid
{
class program
{
static void Main()
{
Console.Write("Height: ");
int i = int.Parse(Console.ReadLine());
if(i>0)
{
goto main;
}
else
{
Main();
}

main:
Console.Write("\n");
for (int h = 1; h<= i;h++) // main loop for the lines
{
for (int s = h; s <= i; s++) //for spaces before the stars
{
Console.Write(" ");
}
for(int j=1; j<(h*2); j=j+2)
{
Console.Write("*");
}
Console.Write("\n");
}
}
}
}


but i need to modify it by something that make this a proper triangle !

Answer

Here is one solution:

public static void DrawPyramid(int Rows)
{
    string Pyramid = string.Empty;
    int n = Rows;
    for (int i = 0; i <= n; i++)
    {
        for (int j = i; j < n; j++)
        {
            Pyramid += " ";
        }
        for (int k = 0; k < 2 * i - 1; k++)
        {
            Pyramid += "*";
        }
        Pyramid += Environment.NewLine;
    }
    Pyramid.ConsoleWrite();
}

Example:

DrawPyramid(5);

//     *  
//    ***   
//   ***** 
//  *******
// *********
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